p.1 

OAR Box 1413 

Prepped by Ollie Stewart 

Document Number: 

11)11-1-11 

Docket Number: 

A-94-52 

Printed 7/9/2008 3:11:20 PM Sheet 11 of 114 
P.2 

— i • ! : :'&ercf .-/-&• ? 3 

A't.%Ihi:.;.jn Control lHn.\?..-< A-S4-62 

y \ bi/ Chesapeake Drtve TT- f— 11 

« n Diego, CA 92123-1055 

^fephohs- (619) 694-33<$&LE 67-

1 2

- POLYESTER RESIN OPERATIONS (Effective 3/14/89: 

'•*X: (619) 694-2750 " Rev. Effective 4/6/93) 

(a) APPLICABILITY 

Except as otherwise provided in Section (b), this rule is applicable to polyester resin 

operations. 

Polyester resin operations subject to this rule shall not be subject to Rule 66. 

(b) EXEMPTIONS 

(1) Except for marine vessel repair operations, the provisions of this rule shall not 

apply to any polyester resin operations where the combined consumption of polyester 

resins, including corrosion resistant resin, fire retardant resin, gel coat, and cleaning 

materials is less than 1 gallon for each operating day. 

(2) The piovisions of this rule shall not apply to any marine vessel repair operation 

using polyester resin materials where the combined consumption of polyester resins, 

including corrosion resistant resin, fire retardant resin, gel coat, and cleaning matenals is 

less than 0.5 gallon for each operating day. 

It shall be the responsibility of any person claiming either of the exemptions specified in 

Subsections (b)(1) or (b)(2) to maintain daily records necessary for the District to determine the 

applicability of such an exemption. The records shall be maintained on site for at least three 

years and shall be made available to the District uoon request;1 ' \V< js; f* 

\rh ,:'"";: ''' —-—=^- » - f• j ; 

(3) The provisions of this rule shall !not!apply~to.coatings subject to Rules 67.3, 

67.0 or 67.11. JJUi ^ I fc- 1 

(c) DEFINITIONS j . gr 

***mm--s i I M II 

For the purpose of this rule, the following definitions shall apply: 

(1) "Catalyst" means a substance added to the resin to accelerate the rate of curing. 

(2) "Cleaning Materials" means materials containing volatile organic compounds 

(VOCs) used for the cleaning of hands, tools, molds and spray equipment associated with 

polyester resin operations. 

(3) "Closed Mold Operation" means a method of forming objects from polyester 

resins by placing the material in a confining mold cavity and applying pressure and/or heat. 

(4) "Controlled Enclosure" means a structure having at least three sides and a 

roof and which is designed to capture process emissions to meet the requirements of all 

District prohibitory standards (e.g., Rules 50, 51,52, 71, etc.). 

(5) "Controlled Process" means a modification to a dry sanding, grinding or 

cutting operation which uses water sprays, vacuum devices or other techniques to control 

the emission of particulates to die atmosphere to meet die requirements of all District 

prohibitory standards (e.g., Rules 50, 51, 52, 71, etc.). 

(6) "Corrosion Resistant Resin" means a halogenated, furan, bisphenol A, 

vinyl ester, or isophthalic resin which is used to make products for exposure to corrosive, 

caustic and/or acidic agents. 

Regulation IV Rule 67.12 

04/07/93 -1-
P.3 

(7) "Cross-Linking" means the process of joining two or more polymer chains 

together. 

(8) "Cure" means the polymerization, i.e. the transformation from a liquid to a 

solid state, to achieve desired product physical properties, including hardness. 

(9) "Exempt Compound" means any of the following compounds or classes of 

compounds: 1,1,1-trichloroethane, methylene chloride, trichlorofluoromethane (CFC-11), 

dichlorodifluoromethane (CFC-12), chlorodifluoromethane (HCFC-22), trifluoromethane 

(HFC-23), trichlorotrifluoroethane (CFC-113), dichlorotetrafluoroethane (CFC-114), 

chloropentafluoroethane (CFC-115), dichlorotrifluoroethane (HCFC-123), dichlorofluoroethane (HCFC-141b), tetrafluoroethane (HFC-134 and HFC-134a, both isomers), 

chlorodifluoroethane (HCFC-142b), chlorotetrafluOroethane (HCFC-124), pentafluoroethane (HFC-125), trifluoroethane (HFC-143a), difluoroethane (HFC-152a); and the 

following four classes of perfluorocarbon (PFC) compounds: 

(i) cyclic, branched, or linear, completely fluorinated alkanes; 

(ii) cyclic, branched, or linear, completely fluorinated ethers widi no 

unsaturations; 

(iii) cyclic, branched, or linear, completely fluorinated tertiary amines with no 

unsaturations; and 

(iv) sulfur containing perfluorocarbons with no unsaturations and with sulfur 

bonds only to carbon and fluorine. 

(10) "Fiberglass" means a fiber similar in appearance to wool or cotton fiber but 

made from glass. 

(11) "Fire Retardant Resin" means a resin designed for the purpose of delaying 

the spread of combustion. 

(12) " Gel Coat" means a polyester resin surface coat, either colored or clear, 

providing a cosmetic enhancement and improvement to exposure resistance. 

(13) "High-Volume Low-Pressure (HVLP) Spray" means a coating application mediod using pressurized air at a permanent pressure between 0.1 and 10.0 psig, not 

to exceed 100 psig, tss&surcd at die air cap of the coating application system, and a permanent liquid coating pressure of not more than 50 psig. 

(14) "Inhibitor" means a substance designed to slow down or prevent a chemical 

reaction. 

(15) " Monomer" means an organic compound that combines widi itself or other simi -

lar compounds by a cross-linking reaction to become a pan of a cured thermosetting resin. 

(16) " Polyester" means a complex polymeric ester, derived from difunctional acids 

and alcohols, which is dissolved in a monomer. 

(17) "Polyester Resin Operation" means any ofthe following: mixing, pouring, hand lay-up, injection, forming, spraying, and curing of polyester resin materials 

excluding injection molding. 

Regulation IV Rule 67.12 

-2-
P.4 

(18) "Polyester Resin Materials" means unsaturated polyesters, cross-linking 

agents, catalysts, gel coats, inhibitors, and any other material containing VOC used in a 

polyester resin operation. 

(19) "Polymer" means a large chemical chain composed of identical cross-linked 

groups, such as polystyrene. 

(20) "Reclamation System" means equipment capable of reclaiming spent 

cleaning materials for reuse. Reclamation may be done onsite or by using an offsite 

commercial reclamation facility. 

(21) " Repair" means the addition of polyester resin to portions of a previously 

fabricated product in order to mend mechanical damage which occurs after the nonnal 

fabrication process. 

(22) " Resin" means any of a class of organic polymers of natural or synthetic origin 

used in reinforced products to surround and hold fibers, and is solid or semi-solid in the 

cured state. 

(23) "Touch-up" means that portion of the polyester resin operation that is necessary 

to cover minor imperfections. 

(24) "Vapor Suppressed Resin" means a resin which has been modified to 

minimize the weight loss from VOC emissions during polymerization. 

(25) "Volatile Organic Compound (VOC)" means any compound of carbon, 

which may be emitted to the atmosphere during polyester resin operations, except methane, 

carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, ammonium carbonate, and exempt compounds. For purposes of calculating VOC content of 

polyester resin material to determine compliance with this rule, any water or any exempt 

compounds shall not be considered to be part of the polyester resin material. VOC content 

of cleaning materials is expressed in grams of VOC per liter of material. 

(26) "Waste Material" means any waste material containing VOC including, but 

not limited to, any paper or cloth used for cleaning operations, waste resins, and any spent 

cleaning materials containing VOC. 

(d) STANDARDS 

(1) Any person operating a polyester resin opa ation subject to this rule shall: 

(i) Use polyester resin material which contains no more thanjtf percent by 

weight of monomer, as applied and as indicated in the manufacturer's specifications for 

application, or use a vapor suppressed resin such that the weight loss from VOC emissions does not exceed 60 grams per square meter of exposed surface area during resin 

polymerization, or use a closed mold system. The provisions of this subsection shall 

not apply to the use of gel coats, conosion resistant resins or fire retardant resins; and, 

(ii) Use gel coats with a monomer content of not more tJian_45.percent by 

weight for pigmented gel coats or 50 percent by weight for clear gel coats, as applied 

and as indicated in die manufacturer's specifications for application; and, 

(iii) Use a corrosion-resistant or fire retardant resin widi a monomer content of 

no more dian 50 percent by weight, as applied and as indicated in the manufacturer's 

specifications for application; ami, 

Regulation IV Rule 67.12 
P.5 

> • 

(iv) Use self-closing containers for storing, except during the transfer of resin or 

solvent, all polyester resin, VOC containing cleaning materials and solvent-laden rags, 

including waste materials; and, 

(v) Conduct all dry sanding, grinding and cutting operations of polyester resin 

which contains fiberglass either inside a controlled enclosure or using a controlled 

process. For marine vessel repair operations this requirement shall apply only for 

sanding, grinding or cutting operations conducted on the exterior of a vessel hull. This 

requirement shall not apply to any portable drilling operations; and, 

(vi) Use a VOC reclamation system for cleaning materials, unless 

(A) the materials contain less than 200 grams of VOC per liter (1.7 lb/gal); 

or 

or 

(B) the materials have initial boiling points greater than 190° C (374° F); 

(C) the combined usage of materials not complying with (A) or (8) 

above, is less than 0.5 gallons average per operating day, calculated from 

monthly records maintained in accordance with Section (f). 

The solvent residue from the reclamation system shall not contain more than 20 

percent VOC by weight; and, 

(vii) Use only airless, air-assisted airiessJhjghj^YphuM^ 

equipment or electrostatic spray equipment for spray operations except for"toucli-up and 

repair operations using a hand held air atomized spray gun which has a container for the 

resin as part of the gun; and, 

(viii) Not use a polyester resin or cleaning^material subject to this mle that, after 

December 4,1990, was newly formulated to contain or reformulated to increase the 

content of, methylene chloride, trichlorofluoromethane (CFC-11), dichlorodifluoromethane (CFC-12), trichlorotrifluoroethane (CFC-113), dichlorotetrafluoroethane 

(CFC-114) or chloropentafluoroethane (CFC-115). 

(2) A person shall not sell or, offer for sale, a polyester resin or cleaning material 

subject to this rule that, after December 4,1990, was newly formulated to contain or 

reformulated to increase the content of, methylene chloride, trichlorofluoromethane (CFC11), dichlorodifluoromethane (CFC-12), trichlorotrifluoroethane (CFC-113), dichlorotetrafluoroethane (CFC-114) or chloropentafluoroethane (CFC-115). 

(3) A person shall not manufacture, sell, offer for sale, or supply any coating or 

cleaning materials for use in polyester resin operations unless polyester resin or cleaning material container displays the content of methylene chloride, trichlorofluoromethane (CFC-11), 

dichlorodifluoromethane (CFC-12), trichlorotrifluoroethane (CFC-113), dichlorotetrafluoroethane (CFC-114), or chloropentafluoroemane (CFC-115). 

(e) RESERVED 

(f) RECORDKEEPING 

Any person subject to the requirements of Subsections (d)(1) of diis rule shall maintain 

records of VOC-containing materials in accordance with die following: 

Regulation IV Rule 67.12 
P.6 

(1) Maintain a current records of polyester resin materials and gel coats used, which 

provide the manufacturer identification, material specifications, monomer content, content of 

any catalysts, fillers, and/or diluents, including thinners, and type ofeach resin (i.e. regular, 

vapor-suppressed, corrosion-resistant, or fire retardant) or gel coat (i.e. pigmented or clear). 

For vapor suppressed resins, also maintain records showing manufacturer's information on 

the weight loss during resin polymerization. 

(2) Maintain current records of the manufacturer's identification and VOC content of 

the cleaning materials used. 

(3) Maintain records on a daily, or montiily basis showing die manufacturer's 

identification and amount of each polyester resin material and cleaning material used. 

(4) Maintain records of die content of methylene chloride, trichlorofluoromediane 

(CFC-11), dichlorodifluoromethane (CFC-12), trichlorotrifluoroethane (CFC-113), 

dichlorotetrafluoroediane (CFC-114) and chloropentafluoroediane (CFC-115) contained in 

any polyester resin material or cleaning material used. 

Such records shall be retained on site for at least three years, and shall be made available to 

the District upon request 

(g) TEST METHODS 

(1) Measurement of die monomer content of resins subject to Subsections (d)(l)(i), 

(d)(l)(ii), or (d)(l)(iii) of diis rule shall be conducted and reported in accordance widi 

SCAQMD Method 312-91 for determination of percent monomer in polyester resin. 

(2) Measurement of die polyester resin material weight loss per square meter 

subject to Subsection (d)(l)(i) of this rule shall be conducted and reported in accordance 

widi SCAQMD Mediod 309-91 for determination of static volatile emissions. 

(3) Measurement of die VOC content of cleaning materials subject to Subsection 

(d)(l)(vi)(A) of diis rule shall be conducted and reported in accordance widi EPA Method 

24 (40 CFR 60, Appendix A) as it exists on April 6,1993. 

(4) Measurement of the initial boiling point of cleaning materials subject to 

Subsection (d)(l)(vi)(B) of diis rule shall be conducted and reported in accordance widi 

ASTM test method D1078-86 (Distillation Range of Volatile Organic Liquids). 

(5) Measurement of the VOC content in solvent residue subject to Subsection 

(d)( l)(vi) of this rule shall be conducted and reported in accordance widi EPA Mediod 25D 

as referenced in 56FR 33494. 

(6) Perfluorocarbon compound(s) shall be recognized as exempt compounds pursuant to Subsection (c)(9) only if die presence of such compounds is claimed by the 

manufacturer of the material containing die compound, and if die manufacturer identifies a 

test mediod for quantifying the identified compounds which has been approved by die Air 

Pollution Control Officer, the Air Resources Board, and the Environmental Protection 

Agency. 

Regulation IV Rule 67.12 

-5-