Caulking materials, commercial

Silicone sealants, introduced in the 1960s, are still the primary type that is used in museums for building display cases. These sealants often contain
fumed silica, calcium carbonate, ground quartz, carbon black, talc, and plasticizers. There are two type of neutral cure RTV silicones. The first type is an alkoxy neutral-cure that releases methanol upon cure. The alkoxy neutral cure silicones are considered suitable for use on all types of metal without risk of corrosion. The second type is an oxime neutral-cure silicones that releases methyl ethyl ketoxime. These withstand temperature better than alkoxy-cure but can cause stress-cracking in some plastic boards, such as polycarbonate and acrylics.
Other types of caulking materials that have been used include polyurethanes and latex. Polyurethane elastomers provide good abrasion resistance. Latex caulking, available in the late 1960s, eliminated the use of organic solvents. They typically contain a polymer emulsion (such as polyvinyl acetate) in water with calcium carbonate, plasticizers, and other additives.
Commercial name 	Manufacturer 	Polymer type 	Properties 	Applications 	Maufacturers Descriptions (Characteristics and Risks) 	Material Analysis 	Product website
Dowsil 580 Neutral cure 	Dow Corning 	Silicone; oxime neutral cure; one component 	 	General Glazing; Weathersealing applications for windows, doors, glass, metal, masonry 	Not recommended for water immersion; do not use on structural glazing; may discolor copper and brass; cannot be painted; not for use on polycarbonates	Oddy results 	Dow: Dowsil 580
Dowsil 737 Neutral Cure 	Dow Corning 	Silicone; oxime neutral cure; one component 	 	Adhesion to most materials; Adhering plastic moldings to plastic substrates for trim applications; Waterproofing electrical components 	Not recommended for water immersion, or use on painted surface; may discolor brass, or copper; may stress craze polycarbonates 	4 tests 2016-2018; Oddy results 	Dow: Dowsil 737
Dowsil 739 RTV 	Dow Corning 	Silicone; alkoxy cure with moisture; one component	 	Adheres well to unprimed metals, ceramis and glass and some plastics 	Does not adhere to teflon, polyethylene, polypropylene, or highly plasticized plastics or rubbers. 	1 test 2016; Oddy results 	Dow: Dowsil 739
Dowsil 791 WeatherproofSealant 	Dow Corning 	Silicone; alkoxy cure with moisture; one component	 	Good for inside display envelope: glass and metal joins; glass and glass joins; Goppion uses black, grey, white due to aesthetic reasons...transparent caulks yellow within 5 years 	 	3 tests 2016-2021; Oddy results 	Dow: Dowsil 791
Dowsil 795 Building Sealant 	Dow Corning 	Silicone; alkoxy cure with moisture; one component	Extra thick; skins over too quickly 	Structural and nonstructural glazing; for most new construction and remedial sealing applications; weather sealing of most common construction materials including glass, aluminum, steel, painted metal, EIFS, granite and other stone, concrete, brick and plastics 	Not recommended for water immersion, or wet or cold surfaces; not paintable 	3 tests 2016-2021; Oddy results 	Dow: Dowsil 795
Dowsil 9-1374 Silicone sealant 	Dow Corning 	Silicone; alkoxy cure with moisture; one component	 	Used for formed in place glaskets; provides strong flexible bond for movalble or expanding joints, such as when bondingmaterials with different thermal expansion rates such as glass to metal, or glass to plastic or metal to plastic 	 	1 test 2016; Oddy results 	Dow: Dowsil 9-1374
Dowsil 3145 RTV Mil-A-46146 Adhesive / Sealant	Dow Corning 	Silicone; alkoxy cure with moisture; one component	Skin over time=15 min; hard to work with; requires experienced person to apply and clean up; viscous, does not flow	Sealing openings in modules and housings; Adding mechanical stability to individual components; adheres to glass and nylon 	Good adhesion cannot be expected on non-reactive metal substrates or non-reactive plasticsurfaces such as Teflon, polyethylene or polypropylene. 	3 tests 2016-2019; Oddy results 	Dow: Dowsil 3145
Dowsil 7091 Adhesive Sealant 	Dow Corning 	Silicone; alkoxy cure with moisture; one component	Skin over time=15 min; This one has been used in museums 	Provides strong but flexible bond, such as when bonding materials with differing thermal expansion rates, e.g. glass to metal or glass to plastic 	For maximum adhesion, the use of DOWSIL™ 1200 OS Primer is recommended. 	4 tests 2016-2019; Oddy results 	Dow: Dowsil 7091
Dowsil 993 	Dow Corning 	 	This one has been used in museums 	 	 	 	
Silastic 1080 RTV 	Dow Corning 	Silicone; alkoxy cure with moisture; one component	 	Provides reliable, long-lasting bonds with a wide range of substrates, including ceramics, metals, glass and filled plastics, 	Long service life, wide operating temperatures, resistance to oils and solvents; water and steam resistant 	Oddy results 	Dow: [Silastic RTV
Egosilicon 460 	EGO Dichstoffwerke GnbH & Co. Betriebs KG	Silicone; alkoxy cure with moisture; one component	 	Timber,Metal,Glass,Sanitary,Enamel,Concrete,Plaster,Masonry,Fibre cement,Facades,Roof,Windows,Ventilation,Clean room,Marine,Ceramics,Air conditioning & heating,Masonry,Clinker,Tiles,Artificial stone 	 	2 tests white and black 2018; Oddy results	EGO: Egosilicon 460
MC Bond 2K 	Promante 	Silicone; two-components neutral cure 	 	Adhesion on almost all surfaces (even wet), in most cases without primer, such as non-porous stone, concrete, mirrors, stone, plasterboard, polycarbonates, PS, PU, PVC and various plastics, ceramics, enamel, copper, lead, zinc, aluminum, stainless steel, trespassing, wood, glass, et 	Paintable. Leave no trace (on stone). UV and weather resistant, resistant to (sea) water, liquids, etc. Unique 	1 test 2016 ; Oddy results 	Promante: MC Bond
PL 3X Premium Construction Adhesive 	Loctite 	Polyurethane; moisture cure; one component 	 	Can be used outdoors and in high humidity environments; bonds to most common construction materials such as wood, concrete, stone, masonry, brick, carpets, metal, stainless steel, galvanized metal, lead, ceramic, rigid fiberglass, drywall, vinyl/PVC trim and molding and polyash trim.	Low VOC content; Water resistant. Not recommended for Water submersion applications or porous substrates 	1 test 2017 2017; Oddy results 	Henkel: Loctite
Pactan 7043-1 	Tremco Illbruck 	Silicone; one-component 	no longer available 	broad adhesion spectrum in electrics, electronics, household appliances, food contact, headlight bonding and many more. 	 	1 test 2017; Oddy results 	Pactan: Adhesives
Pactan 8051-1 	Tremco Illbruck 	Silicone; two-components 	no longer available 	Broad adhesion spectrum in electrics, electronics, household appliances, food contact, headlight bonding and many more. 	 	1 test 2017; Oddy results 	Pactan: Adhesives
Vulkem 116 	Tremco 	Polyurethane; moisture cure; one component 	 	For use on poured and precast concrete, masonry work, window and door perimeters, and similar types of construction joints. 	Paintable; exterior use only; may be removed with xylene or mineral spirits before curing; combustible producing toxic fumes 	 	Tremco: Vulkem 116
Colorsil N 	Kawo Karl Wolpers 	Silicone; neutral cure; one-component 	 	Interior or exterior, vertical or overhead, concrete and masonry surfaces; Protects substrates from long term effects of water, environmental factors and pollution 	 	1 test 2018; Oddy results 	Kawo: Colorsil
Clear Supreme Silicone 	GE Sealants 	Silicone; moisture cure; one-component 	 	 	Water proof, mold and mildew resistant; strong adhesion; indoor/outdoor; contains chlorides 	1 test 2016; Oddy results 	GE: Supreme Silicone
See also: Generic caulking materials and Silicone cure systems
* AIC Conservation Wiki: Caulk Sealants to Seal Exhibit Cases
Category:Materials databaseCategory:MWGCategory:CaulksCategory:Comparisons