Abstract:
A finished high velocity oxy fuel (HVOF) tape used with, for example, during known HVOF processing imparts high temperature silicone pressure sensitive adhesives that provide enhanced adhesion strength to provide a firm adhesion to its own backing and unexpectedly leave no residue upon removal from metals. The novel enhanced tapes are made up of coated or uncoated, woven or non-woven glass cloth and ceramic based fabric laminated to at least one side of a metal-foil using a silicone based laminating adhesive, which is then laminated with another layer of a pre-selected combination of the same materials and coated with a high temperature silicone pressure sensitive adhesive and wound to itself to make a self wound tape or covered adhesive assembly with a release liner to make a laminated sheet for die cut samples, among other things. Applications including military and commercial aircraft, automobiles and metal finishing usages leverage of on the unique and inherent benefits of the novel enhanced tapes of the instant teachings.

Description:
[0001]     This application is related to and claims the priority of U.S. Provisional Application No. 60/652,693 filed on Feb. 14, 2005, which is hereby expressly incorporated by reference in its entirety. 
     
    
     BACKGROUND OF THE DISCLOSURE  
       [0002]     The present disclosure relates to technologies using plasma and thermal spray processes for the deposition of thin films and coatings in addition to related types of manufacturing processes. In particular, the present disclosure relates to improvement of High Velocity Oxy Fuel (HVOF) tapes used with industrial manufacturing methods including, but not limited to, plasma and thermal spray processes for alloys, ceramics, and related types of materials generally functioning to surmount the issues of excessive wear and high stress on surfaces.  
         [0003]     Tapes for HVOF thermal processes, for example, characterized by temperatures which can exceed 600 degrees Fahrenheit and greater than 21,000 miles per hour for fuel velocity, are a longstanding need yet to be adequately addressed in aircraft, automobiles, and metal finishing industry terms.  
         [0004]     Common among known high temperature tapes are breakdowns or related mechanical integrity challenges such as unravelings, separation from their own backings, and the like unacceptable failure modes. No known tapes including those made with high temperature carriers are effective to withstand the above noted conditions. Further, metal deposition in unwanted areas, and related contaminations are not industrially accepted and require increased cost, time, and reworking efforts.  
       SUMMARY OF THE DISCLOSURE  
       [0005]     A finished HVOF tape used, for example, during known HVOF processing imparts high temperature silicone pressure sensitive adhesives that provide enhanced adhesion strength to provide a firm adhesion to its own backing and unexpectedly leave no residue upon removal from metals. The novel enhanced HVOF tapes are made up of coated or uncoated, woven or non-woven glass cloth and ceramic based fabric laminated to at least one side of a metal foil using a silicone based laminating adhesive, which is then laminated with another layer of a pre-selected combination of the same materials and coated with a high temperature silicone pressure sensitive adhesive and wound to itself to make a self wound HVOF tape or covered adhesive assembly with a release liner to make a laminated sheet for die cut samples, among other things. Applications including military and commercial aircraft, automobiles, and metal finishing usages leverage off of the unique and inherent benefits of the novel enhanced HVOF tapes of the instant teachings.  
         [0006]     According to features of the present disclosure, there is provided a multilayered laminated HVOF tape comprising, in combination a plurality of layers including having at least: a first layer; a third layer, further comprising any one of the group consisting of: aluminum foil, steel foil, copper foil, wool paper, polyamide paper, and polyamide woven fabric; a first adhesive layer; a glass cloth layer, wherein the glass cloth layer is a glass or ceramic fiber that is either woven or felt; a second adhesive layer; wherein the resulting HVOF tape which provides for high strength and non-flammable resistance to high temperature, high velocity, and high pressure when used during an HVOF process.  
         [0007]     According to features of the present disclosure, there is provided a multilayered laminated HVOF tape comprising, in combination: a plurality of layers including having at least: a glass cloth layer; a first layer; a third layer, further comprising any one of the group consisting of: aluminum foil, steel foil, copper foil, wool paper, polyamide paper, and polyamide woven fabric; a second adhesive layer; wherein the resulting HVOF tape which provides for high strength and non-flammable resistance to high temperature, high velocity, and high pressure when used during an HVOF process.  
         [0008]     According to features of the present disclosure, there is provided a multilayered laminated HVOF tape comprising, in combination: a first release liner; a first high temperature silicone pressure sensitive adhesive; one of a first high temperature fabric and a high temperature silicone foam; a first laminating adhesive; one of a metal foil and a silicone foam; a second laminating adhesive; a second high temperature fabric; a second high temperature silicone pressure sensitive adhesive; and a second release liner. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0009]     The above-mentioned features and objects of the present disclosure will become more apparent with reference to the following description taken in conjunction with the accompanying drawings wherein like reference numerals denote like elements and in which:  
         [0010]      FIG. 1  is a pictorial representation of the present disclosure.  
         [0011]      FIG. 2  is a schematized view of an embodiment of the teachings of the present disclosure, showing the same as used in conjunction, for example, with conventional HVOF processing.  
         [0012]      FIG. 3  is a schematized view of an embodiment of the teachings of the present disclosure, showing the same as used in conjunction, for example, with conventional HVOF processing.  
         [0013]      FIG. 4  is a schematized view of an embodiment of the teachings of the present disclosure, showing the same as used in conjunction, for example, with conventional HVOF processing. 
     
    
     DETAILED DESCRIPTION  
       [0014]     The present inventor has discovered that laminated materials preventing the types of failures detailed above can be simply and elegantly generated to address the longstanding needs existing among the prior art. The laminates of the instant teachings include more than one layer of coated or uncoated glass cloth laminated with a metal foil with high temperature inorganic silicone based adhesives—both pigmented and unpigmented.  
         [0015]     What is unexpectedly better than dictated by empirical data are the excellent conformability and sealing properties, including the self-attachment achieved with the instant laminates. An ability to withstand extreme high temperatures and high fuel velocity up to a magnitude of at least about 21,000 miles per hour is likewise believed to differentiate the instant teachings from known art in novelty terms, as discussed herein, illustrated by the schematic and exemplary versions of the embodiments presented as figures and defined by the claimed appended. According to embodiments of the teachings of the present disclosure, there is disclosed a silicone pressure sensitive adhesive which, used according to the instant processes retained physical properties like adhesion to surfaces and to its own backing after being exposed to extreme conditions in testing.  
         [0016]     The composition of silicone pressure sensitive adhesives (PSA) is similar to many common organic PSAs. However, silicone PSAs are appropriate in high temperature applications in which organic PSAs fail. The characteristics that dictate the performance of silicone PSAs are high molecular weight linear siloxane polymers and a highly condensed silicate tackifying resin, such as MQ resin. An example of a typical silicone polymer used in the present disclosure is:  
                         
 
 Typical commercially available silicone PSAs are polydimethylsiloxane (PDMS) polymer, polydiphenylsiloxane (PDPS) polymer, and polydimethyldiphenylsiloxane (PDMDPS) polymer, which have silanol or vinyl functional groups at the polymer chain ends. 
 
         [0017]     MQ is a silicate resin commercially available as a solid suspended in a hydrocarbon solvent and is disclosed in U.S. Pat. No. 5,330,747, which is hereby expressly incorporated by reference as if fully set forth herein. It comprises a core of SiO 4/2  “Q” units, which are surrounded by a shell of Me 3 SiO “M” units. MQ units undergo a condensation reaction with a siloxane polymer due to silanol functional groups in the shell, forming a covalent bond between the MQ resin and the siloxane polymer. The ratio of resin to polymer must optimized for each application, but can done without undue experiments by a person of ordinary skill in the art.  
         [0018]     Adhesion of PSAs in a pressure sensitive manner occurs by removing solvents. To increase and reinforce the adhesion network, the PSAs may be cured. PSA curing systems are commercially available. One system is a peroxide-catalyzed free-radical cure system. It uses either benzoyl peroxide or 2,4-dichlorobenzoyl peroxide. The details of these systems are well known in the art. Another common system contemplated by the present disclosure for curing PSAs is a platinum-based system, which is also commercially available and well-known in the art. The advantage of platinum-based systems are the lack byproducts and the ability to cure while evaporating the solvent at low temperature.  
         [0019]     The present disclosure is a process for making a multilayered laminated HVOF tape which comprises, attaching a plurality of layers of glass cloth laminated with metal foils, aramid paper, or ceramic papers with high temperature inorganic silicone based adhesives, and finishing a resulting HVOF tape which provides for high strength and non-flammable resistance to high temperature, high velocity, and high pressure when used during an HVOF process. Using this process, it is further understood that in certain instances of the process above, the attaching step further includes a first silicone rubber coating, followed by a woven or non-woven high temperature fabric, a laminating adhesive, a metal foil, another layer of laminating adhesive, and a woven or non-woven high temperature fabric, a silicone pressure sensitive adhesive and an optional release liner. Similarly, the product, produced by the process of described above works whereby the plurality of layers in the attaching step further includes a first silicone rubber coating, followed by a laminating adhesive, a metal foil, another layer of laminating adhesive, a woven or non-woven high temperature fabric, a silicone pressure sensitive adhesive, and an optional release liner.  
         [0020]     The present disclosure likewise contemplates that in a product, produced by the above process, the plurality of layers in the attaching step further includes a first silicone rubber coating, followed by a woven or non-woven high temperature fabric; a laminating adhesive; a metal foil, ceramic paper, polyamide paper; a silicone pressure sensitive adhesive; and an optional release liner.  
         [0021]     In another and alternative construction, a laminated assembly is disclosed wherein there is a laminated HVOF tape comprised of at least coated and uncoated glass cloth and ceramic based fabric laminated to one or both sides of at least one foil selected from the group consisting of copper, steel, aluminum, and other metal foils with a silicone laminating adhesive, which is then again laminated with another layer of woven or nonwoven glass cloth or ceramic based fabric which is coated with a high temperature silicone pressure sensitive adhesive and wound to itself to make a self wound HVOF tape.  
         [0022]     Yet still another embodiment according to the present disclosure is shown, wherein the laminated HVOF tape product is comprised of at least one of coated and uncoated glass cloth and ceramic based fabric laminated to one or both sides of at least one foil selected from the group consisting of copper, steel, aluminum, and other metal foils with a silicone laminating adhesive which is then again laminated with another layer of woven or non woven glass cloth or ceramic based fabric which is coated with a high temperature silicone pressure sensitive adhesive and wound to itself to make a laminated sheet, or to make an assembly from which die cut samples may be made.  
       EXAMPLE 1  
       [0023]      FIG. 2  demonstrates an embodiment of HVOF tape  100  construction. According to  FIG. 2 , HVOF tape  100  construction comprises a plurality of layers: first layer  102 , second layer  104 , third layer  106 , first adhesive  108 , glass cloth  110 , second adhesive  112 , and release liner  114 .  
         [0024]     First layer  102  is a pressure sensitive layer made from a polydimethylsiloxane (PDMS) polymer, polydiphenylsiloxane (PDPS) polymer, or a polydimethyldiphenylsiloxane (PDMDPS) polymer. In an embodiment, MQ resin may optionally be added as a tackifying agent. Moreover, a release liner (not shown) is optional in the configuration where first layer  102  is a pressure sensitive adhesive.  
         [0025]     Optionally, first layer  102  may be a pressure insensitive (pressure insensitive defined to be not pressure sensitive) silastic coating, which is a non-tacky silicone rubber or elastomer coating. Additionally, first layer  102  may be a PDMS, PDPS, or PDMDPS polymer having a nonorganic fire resistant filler. Nonorganic fire resistant fillers may be ceramic powder, metal, glass, metal oxides, or combinations of ceramic powder, metal, glass, or metal oxide fillers. Examples of fire resistant fillers contemplated by the present disclosure are ferro oxide, titanium oxide, boron nitride, zirconium oxide, sodium silicate, and magnesium silicate, although others are suitable as well.  
         [0026]     First layer  102  may also be a nonthermally conductive material, in embodiments. An example of a nonthermally conductive material is zirconium woven cloth or felt. Zirconium is defined to be a material comprising 50% to 100% ZrO 2 . A more effective embodiment comprises 70% to 100% ZrO 2 .  
         [0027]     In another embodiment, the nonthermally conductive material is a siloxane-based foam that is either pressure sensitive or pressure insensitive, comprising the siloxane-based foam with a density of about 0.01 to about 1.00 g/cm 3 . The foam may optionally include at least one non-flammable filler, which may be ceramic powder, metal, glass, metal oxides, or combinations of ceramic powder, metal, glass, or metal oxide fillers. Examples of fire resistant fillers contemplated by the present disclosure are ferro oxide, titanium oxide, boron nitride, zirconium oxide, sodium silicate, and magnesium silicate, although others are suitable as well.  
         [0028]     Second layer  104  is an optional laminating layer depending on how well first layer  102  adheres to third layer  106 . However, when included, second layer comprises an adhesive bonding first layer to third layer, such as a PDMS, PDPS, PDMDPS-based pressure sensitive adhesive or a PDMS, PDPS, PDMDPS-based adhesive that is pressure insensitive at room temperature.  
         [0029]     Third layer  106  is also an optional layer comprising a metal film or foil. The present disclosure contemplates using an aluminum foil, steel foil, copper foil, or other types of metal foil. In other embodiments, metal foil is substituted with wool paper, polyamide paper, carbon paper, ceramic paper, or polyamide felt. The layer should be about 0.1 mm to about 5.00 mm thick. In a particularly effective embodiment, copper foil of thickness of about 0.025 mm to about 0.13 mm is used.  
         [0030]     First adhesive  108  is a PDMS, PDPS, or PDMDPS polymer based adhesive. It must be able to adhere to whatever components form first layer  102 , second layer  104 , or third layer  106  and glass cloth  110 . First adhesive  108  works well as both a pressure sensitive adhesive or a pressure insensitive adhesive. The adhesive may optionally include at least one non-flammable additive, which may be ceramic powder, metal, glass, metal oxides, or combinations of ceramic powder, metal, glass, or metal oxide additives. Examples of fire resistant additives contemplated by the present disclosure are ferro oxide, titanium oxide, boron nitride, zirconium oxide, sodium silicate, and magnesium silicate, although others are suitable as well.  
         [0031]     Glass cloth  110  is a woven or felt cloth made of glass fiber, silicate fiber, ceramic fiber, aramid fiber, polyamide fiber, or carbon fiber.  
         [0032]     Like first adhesive  108 , second adhesive  112  is a PDMS, PDPS, or PDMDPS polymer based adhesive. It may either be a pressure sensitive adhesive or a pressure insensitive adhesive. A particularly effective embodiment is a pressure sensitive adhesive uses a PDPS polymer based adhesive. The adhesive may optionally include at least one non-flammable additive, which may be ceramic powder, metal, glass, metal oxides, or combinations of ceramic powder, metal, glass, or metal oxide additives. Examples of fire resistant additives contemplated by the present disclosure are ferro oxide, titanium oxide, boron nitride, zirconium oxide, sodium silicate, and magnesium silicate, although others are suitable as well.  
         [0033]     Finally, release liner  114  may take a number of forms in embodiments. For example, it may be a thin layer web that covers second adhesive  112 . Alternately, it may be corrugated or embossed film, such as polyolefin or PVC. It may also be a smooth plastic film or paper coated with a flourosilicone coated release layer that does not bond to second adhesive  112 . Release liner  114  should be able to be easily and manually removed from second adhesive  112  without changing the physical or functional properties of second adhesive  112 . Other release liners having similar properties are similarly contemplated as would be known to those skilled in the art.  
       EXAMPLE 2  
       [0034]      FIG. 3  shows an alternative embodiment of an HVOF tape  100 . The alternative embodiment comprises: glass cloth  110 , first layer  102 , second layer  104 , third layer  106 , first adhesive  108 , glass cloth  110 , second adhesive  112 , and release liner  114 . The exemplary embodiment is the same as the exemplary embodiment disclosed in EXAMPLE 1, with the exception that glass cloth layer  110 , as previously defined, comprises the top-most layer rather than first layer  102 .  
         [0035]     Because glass layer is the topmost layer, first layer  102  is modified to be a pressure sensitive adhesive layer made from PDMS polymer, PDPS polymer, or PDMDPS polymer serving as an adhesive binding glass cloth  110  to the other layers. In an embodiment, MQ resin may optionally be added to first layer  102  as a tackifying agent. Optionally, first layer may be a PDMS, PDPS, or PDMDPS polymer having a nonorganic fire resistant additive. Nonorganic fire resistant additives may be ceramic powder, metal, glass, metal oxides, or combinations of ceramic powder, metal, glass, or metal oxide additives. Examples of fire resistant additives contemplated by the present disclosure are ferro oxide, titanium oxide, boron nitride, zirconium oxide, sodium silicate, and magnesium silicate, although others are suitable as well. First layer  102  may also be a pressure insensitive silastic coating, which is a non-tacky silicone rubber or elastomer coating.  
       EXAMPLE 3  
       [0036]      FIG. 4  demonstrates a third embodiment for constructing HVOF tape  100 . The exemplary embodiment comprises glass cloth  110 , first layer  102 , second layer  104 , third layer  106 , second adhesive  112 , and release liner  114 . The embodiment is the same as that of EXAMPLE 2, except that third layer  106  is must be included and glass cloth  110  layer and its laminating adhesive, first adhesive  108 , are excluded. All other features are the same as in EXAMPLE 2.  
       EXAMPLE 4  
       [0037]     A fourth embodiment exemplified by  FIG. 5  of the present disclosure comprises HVOF tape  100  identical to the embodiment taught in EXAMPLE 1, except that first layer  102  comprises both a high temperature silicone PSA. Moreover, between first layer  102  and second layer  104  is high temperature fabric or foam  116 , as previously described. Release liners  114  are used on both sides of the HVOF tape bordering high temperature silicone PSA layers  102  and  112 .  
         [0038]     The present inventor has disclosed that the material characteristics necessary to transform conventional tapes into HVOF tape, which provides interesting and useful results when optimized. Unexpectedly improved products have consequently been developed using the results set forth in the following tables in the process of optimizing the instant teachings.  
                                                                           TABLE 1                                       Tape Example Code                1259A   1259B   1260   1261   1262                        Tape   Glass fiber   Glass fiber cloth   Glass fiber cloth   Glass fiber   Glass fiber cloth       Construction   cloth   Silastic Rubber   Silicone   cloth   Silastic Rubber           Silastic   Coating   lamination   Silastic   Coating           Rubber   Silicone   adhesive   Rubber   Silicone           Coating   lamination   2 mil aluminum   Coating   lamination           Silicone   adhesive   foil   Silicone   adhesive           lamination   2 mil aluminum   Silicone   lamination   2 mil aluminum           adhesive   foil   Silicone   adhesive   foil           2 mil   Silicone   lamination   2 mil   PDMDPS           aluminum foil   lamination   adhesive   aluminum foil   pressure           Silicone   adhesive   Glass fiber cloth   PDMS   sensitive           lamination   Glass fiber cloth   PDMDPS   pressure   adhesive           adhesive   PDMDPS   pressure   sensitive   Fluorosilicone           Glass fiber   pressure   sensitive   adhesive   PET release           cloth   sensitive   adhesive       liner           PDMS   adhesive                   pressure                           sensitive                           adhesive                       Adhesion to   53   61   60   63   48       Steel (oz/in)       Adhesion to   31   40   28   29   35       Backing       (oz/in)       Probe tack   950   1500   1000   1440   1200       (grams)       Rolling Ball   0.35   0.35   0.4   0.55   0.4       Tack (inches)       Oxy/Propane   good   good   fair-good   fair   fair-good       thermal test       (3 minutes)                  
 
         [0039]     Table 1 shows exemplary embodiments and their respective strengths with respect to key parameters of the instant disclosure. Table 2 demonstrates variations in the formulation of silicone adhesive and silastic silicone rubber layers reviewed in completion of the teachings of the instant disclosure. Units of the layers are in parts per total weight (e.g. the total weight of HVOF tape example 1043 is 105 parts, wherein 100 parts are PDMP Silicone PSA and 5 parts benzoyl peroxide).  
                                                                                                                                                                                                                                                                                                 TABLE 2                       The following describes possible silicone adhesive and Silastic silicone rubber formulations.                                    Tape Example Code                Tape Construction Components   1043 A   1043A1   1043 B               Adhesive Layer   PDMDP Silicone PSA   100   100           PDP Silicone PSA           PDM Silicone PSA           100           Benzoyl Peroxide   5   10   5       Silastic silicone   Silicone rubber A       rubber Layer   Ferro Oxide           Silicone rubber B           Titanium Oxide           Boron Nitride           Zirconium Oxide           Sodium Silicate           Magnesium Silicate       Tape Construction       glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone adhesive   Silicone adhesive   Silicone adhesive               3 mil aluminum foil   3 mil aluminum foil   3 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone PSA   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   55   50   65           Adhesion to Backing (oz/in)   31   30   45           Probe tack (grams)   950   900   860           Rolling Ball Tack(inches)   0.35   0.45   0.45           Oxy/Propane thermal test (3   good   good   good           minutes)                        Tape Example Code                Tape Construction Components   1043 B1   1044 C   1044 D               Adhesive Layer   PDMDP Silicone PSA           PDP Silicone PSA           PDM Silicone PSA   100   100   100           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A       100       rubber Layer   Ferro Oxide       50           Silicone rubber B           100           Titanium Oxide           50           Boron Nitride           Zirconium Oxide           Sodium Silicate           Magnesium Silicate       Tape Construction       glass fiber cloth   Silastic silicone   Silastic silicone               Silicone adhesive   rubber   rubber               3 mil aluminum foil   glass fiber cloth   glass fiber cloth               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   3 mil aluminum foil   3 mil aluminum foil               Silicone PSA   Silicone adhesive   Silicone adhesive                   glass fiber cloth   glass fiber cloth                   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   60   62   60           Adhesion to Backing (oz/in)   43   38   40           Probe tack (grams)   910   900   910           Rolling Ball Tack(inches)   0.4   0.4   0.4           Oxy/Propane thermal test (3   good   good   good           minutes)                        Tape Example Code                Tape Construction Components   1044 E   1044 D   1045 D               Adhesive Layer   PDMDP Silicone PSA   100           PDP Silicone PSA       100   100           PDM Silicone PSA           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A   100       rubber Layer   Ferro Oxide   50           Silicone rubber B       100   100           Titanium Oxide       20   100           Boron Nitride           Zirconium Oxide           Sodium Silicate           Magnesium Silicate       Tape Construction       Silastic silicone   Silastic silicone   Silastic silicone               rubber   rubber   rubber               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone adhesive   Silicone adhesive   Silicone adhesive               3 mil aluminum foil   3 mil aluminum foil   3 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone PSA   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   53   55   54           Adhesion to Backing (oz/in)   32   30   35           Probe tack (grams)   900   850   880           Rolling Ball Tack(inches)   0.3   0.35   0.3           Oxy/Propane thermal test (3   good   good   good           minutes)                        Tape Example Code                Tape Construction Components   1046 D   1047 D   1048 D               Adhesive Layer   PDMDP Silicone PSA           PDP Silicone PSA   100   100   100           PDM Silicone PSA           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A       rubber Layer   Ferro Oxide           Silicone rubber B   100   100   100           Titanium Oxide           Boron Nitride   20   100           Zirconium Oxide           20           Sodium Silicate           Magnesium Silicate       Tape Construction       Silastic silicone   Silastic silicone   Silastic silicone               rubber   rubber   rubber               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone adhesive   Silicone adhesive   Silicone adhesive               3 mil aluminum foil   3 mil aluminum foil   3 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone PSA   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   52   53   55           Adhesion to Backing (oz/in)   29   33   35           Probe tack (grams)   800   790   820           Rolling Ball Tack(inches)   0.29   0.3   0.33           Oxy/Propane thermal test (3   good   good   good           minutes)                        Tape Example Code                Tape Construction Components   1049 D   1050 D   1051 D               Adhesive Layer   PDMDP Silicone PSA           PDP Silicone PSA   100   100   100           PDM Silicone PSA           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A       rubber Layer   Ferro Oxide           Silicone rubber B   100   100   100           Titanium Oxide           Boron Nitride           Zirconium Oxide   100           Sodium Silicate       20   100           Magnesium Silicate       Tape Construction       Silastic silicone   Silastic silicone   Silastic silicone               rubber   rubber   rubber               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone adhesive   Silicone adhesive   Silicone adhesive               3 mil aluminum foil   3 mil aluminum foil   3 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone PSA   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   58   52   55           Adhesion to Backing (oz/in)   36   30   32           Probe tack (grams)   810   790   830           Rolling Ball Tack(inches)   0.34   0.3   0.32           Oxy/Propane thermal test (3   good   good   good           minutes)                        Tape Example Code                Tape Construction Components   1052 D   1053 D   1054 D               Adhesive Layer   PDMDP Silicone PSA           PDP Silicone PSA   100   100   100           PDM Silicone PSA           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A       rubber Layer   Ferro Oxide           Silicone rubber B   100   100   100           Titanium Oxide           Boron Nitride           Zirconium Oxide           Sodium Silicate           Magnesium Silicate   20   100   50       Tape Construction       Silastic silicone   Silastic silicone   Silastic silicone               rubber   rubber   rubber               glass fiber cloth   glass fiber cloth   5 mil copper foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               3 mil aluminum foil   3 mil aluminum foil   3 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone PSA   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   51   56   57           Adhesion to Backing (oz/in)   33   33   34           Probe tack (grams)   820   850   850           Rolling Ball Tack(inches)   0.33   0.35   0.35           Oxy/Propane thermal test (3   good   very good   good           minutes)                        Tape Example Code                Tape Construction Components   1055 D   1056 D   1057 D               Adhesive Layer   PDMDP Silicone PSA           PDP Silicone PSA   100   100   100           PDM Silicone PSA           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A       rubber Layer   Ferro Oxide           Silicone rubber B   100   100   100           Titanium Oxide           Boron Nitride           Zirconium Oxide           Sodium Silicate   50   100           Magnesium Silicate           100       Tape Construction       Silastic silicone   Silastic silicone   Silastic silicone               rubber   rubber   rubber               2 mil copper foil   3 mil aluminum foil   5 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               4 mil aluminum foil   5 mil aluminum foil   6 mil aluminum foil               Silicone adhesive   Silicone adhesive   Silicone adhesive               glass fiber cloth   glass fiber cloth   glass fiber cloth               Silicone PSA   Silicone PSA   Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   57   50   52           Adhesion to Backing (oz/in)   32   30   31           Probe tack (grams)   840   780   790           Rolling Ball Tack(inches)   0.33   0.3   0.3           Oxy/Propane thermal test (3   very good   very good   very good           minutes)                        Tape Example Code                Tape Construction Components   1058 D   1059 D   1060 D               Adhesive Layer   PDMDP Silicone PSA   100   100   100           PDP Silicone PSA           PDM Silicone PSA           Benzoyl Peroxide   10   10   10       Silastic silicone   Silicone rubber A   100   100   100       rubber Layer   Ferro Oxide           Silicone rubber B           Titanium Oxide           Boron Nitride           Zirconium Oxide           Sodium Silicate   50   50   50           Magnesium Silicate       Tape Construction       Silastic silicone   Silastic silicone   10 mil copper foil               rubber   rubber   Silastic silicone               5 mil copper foil   6 mil copper foil   rubber               Silicone adhesive   Silicone adhesive   3 mil aluminum foil               glass fiber cloth   4 mil aluminum foil   Silicone adhesive               Silicone PSA   Silicone PSA   glass fiber cloth                       Silicone PSA       Tape Properties   Adhesion to Steel (oz/in)   50   52   66           Adhesion to Backing (oz/in)   34   30   34           Probe tack (grams)   850   810   860           Rolling Ball Tack(inches)   0.35   0.32   0.35           Oxy/Propane thermal test (3   good   good   very good           minutes)                                Tape Example Code               Tape Construction Components   1060 D                       Adhesive Layer   PDMDP Silicone PSA   100               PDP Silicone PSA               PDM Silicone PSA               Benzoyl Peroxide   10           Silastic silicone   Silicone rubber A   100           rubber Layer   Ferro Oxide               Silicone rubber B               Titanium Oxide               Boron Nitride               Zirconium Oxide               Sodium Silicate   50               Magnesium Silicate           Tape Construction       10 mil copper foil                   Silastic silicone                   rubber                   6 mil aluminum foil                   Silicone adhesive                   glass fiber cloth                   Silicone PSA           Tape Properties   Adhesion to Steel (oz/in)   68               Adhesion to Backing (oz/in)   32               Probe tack (grams)   850               Rolling Ball Tack(inches)   0.35               Oxy/Propane thermal test (3   good               minutes)                      
 
         [0040]     While the apparatus and method have been described in terms of what are presently considered to be the most practical and preferred embodiments, it is to be understood that the disclosure need not be limited to the disclosed embodiments. It is intended to cover various modifications and similar arrangements included within the spirit and scope of the claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structures. The present disclosure includes any and all embodiments of the following claims.