BAY AREA AIR QUALITY MANAGEMENT DISTRICT
REGULATION 8 - ORGANIC COMPOUNDS
RULE 50 - POLYESTER RESIN OPERATIONS
8-50-110 Limited Exemption, Touch-up and Repair
8-50-202 Cleaning Materials
8-50-203 Close-mold System
8-50-204 Control System
8-50-205 Corrosion-resistant Materials
8-50-208 Gel Coat
8-50-210 Low-VOC Emission Resin System
8-50-213 Polyester Resin Material
8-50-214 Polyester Resin Operations
8-50-220 Volatile Organic Compound (VOC)
8-50-221 Vapor Suppressant
8-50-222 Waste Materials
8-50-223 Airless Spray
8-50-224 Air-assisted Airless Spray
8-50-225 Electrostatic Spray
8-50-226 High-volume, Low-pressure Spray
8-50-227 Approved Emission Control System
8-50-228 Key System Operating Parameter
8-50-301 Process Requirements
8-50-302 Spraying Operations
8-50-303 Emission Control Requirement
8-50-304 Corrosion-resistant Materials
8-50-305 Surface Preparation and Clean-up Solvent
8-50-306 Equipment Requirements
8-50-307 Gel Coat Requirement
8-50-400 ADMINISTRATIVE REQUIREMENTS
8-50-500 MONITORING AND RECORDS
8-50-600 MANUAL OF PROCEDURES
8-50-601 Analysis of Samples
8-50-602 Determination of Emissions
POLYESTER RESIN OPERATIONS
(Adopted December 5, 1990)
8-50-101 - Description: The purpose of this Rule is to limit organic compound emissions from the manufacturing of products using polyester resins.
8-50-110 - Limited Exemption, Touch-up and Repair: The requirements of Sections 8-50-301 shall not apply to touch-up and repair.
8-50-201- Catalyst: A substance added to the resin to initiate polymerization.
8-50-202 - Cleaning Materials: Materials used to clean hands, tools, molds, application equipment, work area, and other process related equipment.
8-50-203 - Closed-mold System: A system of forming objects from polyester resins by placing the material in a confining cavity and applying pressure and/or heat.
8-50-204 - Control System: A control device and collection system designed in accordance with good engineering practices.
8-50-205 - Corrosion-resistant Materials: Halogenated, furan, bisphenol-A, Vinyl-ester, or isophthalic resins used to make products for corrosive or fire retardant services.
8-50-206 - Cross-linking: The chemical process of joining two or more polymer chains together.
8-50-207 - Fiberglass: A fiber similar in appearance to wool or cotton fiber but made from glass.
8-50-208 - Gel Coat: A polyester resin surface coating that provides a cosmetic enhancement and improves resistance to degradation from exposure to the environment.
8-50-209 - Inhibitor: A substance used to slow down or prevent a chemical reaction.
8-50-210 - Low-VOC Emission Resin System: A polyester resin material which contains additives to reduce monomer evaporation loss.
8-50-211 - Monomer: A relatively low molecular weight organic compound that combines with itself or other similar compounds to become a polymerized thermosetting resin.
8-50-212 - Polyester: A complex polymeric ester containing difunctional acids.
8-50-213 - Polyester Resin Material: Any VOC containing materials used in polyester resin operations which include, but are not limited, to unsaturated polyester resins such as isophthalic, orthophthalic, halogenated, bisphenol-A, vinyl-ester, or furan resins; cross-linking agents; catalysts, gel coats, inhibitors, accelerators, promoters, and any other VOC containing materials.
8-50-214 - Polyester Resin Operations: Methods used for the production or rework of product by mixing, pouring, hand laying-up, impregnating, injecting, forming, spraying, and/or curing unsaturated polyester materials with fiberglass, fillers, or any other reinforcement materials and associated clean-up.
8-50-215 - Polymer: A substance consisting of a large number of chemical groups and which is formed by the chemical linking of monomers.
8-50-216 - Polymerize: Transformation from a liquid to a solid or semi-solid state to achieve desired product physical properties, including hardness.
8-50-217 - Repair: The part of the fabrication process that requires the addition of polyester material to portions of a previously fabricated product in order to mend minor structural damage immediately following normal fabrication operations.
8-50-218 - Resin: Any 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 polymerized state.
8-50-219 - Touch-up: The portion of the fabrication process that is necessary to cover minor imperfections.
8-50-220 - Volatile Organic Compound (VOC): Any organic compound (excluding methane, carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates and ammonium carbonate) which would be emitted during use, application, curing or drying of a solvent or polyester resin material.
220.1 For purposes of calculating the VOC content of a polyester resin material, any water or any of the following non-precursor organic compounds:
cyclic, branched or linear completely methylated siloxanes (VMS)
shall not be considered to be part of the polyester resin material.
220.2 For the purposes of calculating the VOC content of a solvent subject to Section 305.4, any water shall be considered part of the material. The following compounds:
cyclic, branched or linear, completely methylated siloxanes (VMS) shall not be considered part of the VOC content of the solvent. (Amended December 20, 1995; November 6, 1996)
8-50-221 - Vapor Suppressant: A substance added to resin to minimize the outward diffusion of monomer vapor into the atmosphere.
8-50-222 - Waste Materials: Materials including, but not limited to, any scrap resulting from cutting and grinding operations, any paper or cloth used for cleaning operations, waste resins, non-polymerized waste resins, and any spent cleaning materials.
8-50-223 - Airless Spray: Equipment used to apply materials by use of fluid pressure without atomizing air, including heated airless spray.
8-50-224 - Air Assisted Airless Spray: Equipment used to apply materials that uses fluid pressure to atomize coating and air pressure between 0.1 and 10 psig to adjust the spray pattern.
8-50-225 - High-Volume Low-Pressure (HVLP) Spray: Equipment used to apply materials by means of a gun which operates between 0.1 and 10 psig air pressure.
8-50-226 - Electrostatic Air Spray: Equipment used to apply materials by charging atomized particles that are deposited by electrostatic attraction.
8-50-227 - Aproved Emission Control System: A system for reducing emissions of VOC to the atmosphere, consisting of a control device and a collection system, which achieves the overall abatement efficiency specified in the applicable standards section at all times during operation of the equipment being controlled. (Adopted June 15, 1994)
8-50-228 - Key System Operating Parameter: An emission control system operating parameter, such as temperature, flow rate or pressure, that ensures operation of the abatement equipment within manufacturer specifications and compliance with the standard in Section 8-50-303. (Adopted June 15, 1994
8-50-301 - Process Requirements: A polyester resin operation shall use one or more of the following emission reducing methods except as provided in Section 8-50-304:
301.1 Use polyester resin material with a monomer content of no greater than 35 percent by weight.
301.2 Use a resin containing vapor suppressant, such that weight loss from VOC emissions do not exceed 60 grams per square meter of exposed surface area during resin polymerization.
301.3 Use a closed-mold system.
8-50-302 - Spraying Operations: A polyester resin operation using spray application equipment shall use one or more of the following spray equipment:
302.1 Airless Spray
302.2 Air-assisted Airless Spray
302.3 Electrostatic Spray
302.4 High-volume, Low-pressure Spray
8-50-303 - Emission Control Requirement: The requirements of Sections 8-50-301 and 302 shall not apply to polyester resin operations which install and properly operate an approved emission control system that meets the requirements of Regulation 2, Rule 1 and reduces organic compound emissions by at least 85 percent overall. (Amended June 15, 1994)
8-50-304 - Corrosion-resistant Materials: Any polyester resin operation using corrosion-resistant materials to manufacture products for corrosive or fire retardant service shall use a polyester resin material with a monomer content of no greater than 50 percent by weight.
8-50-305 - Surface Preparation and Clean-up Solvent: The requirements of this section shall apply to any polyester resin operation using organic solvent for surface preparation and clean-up.
305.1 A polyester resin operation shall use closed containers for the storage of all polyester resin materials, cleaning materials and any unused VOC-containing materials except when accessed for use.
305.2 A polyester resin operation shall use self-closing containers for the disposal of all polyester resin materials, cleaning materials, waste materials, and any unused VOC containing materials in such a manner as to effectively control VOC emissions to the atmosphere.
305.3 A polyester resin operation shall not use organic compounds for the clean-up of spray equipment including spray lines unless equipment for collecting the cleaning material and minimizing their evaporation to the atmosphere is used.
305.4 A polyester resin operation shall use cleaning materials that contain no greater than 200 grams of VOC per liter of material.
8-50-306 - Equipment Requirements: All resin baths shall be covered to reduce organic compound emissions.
8-50-307 - Gel Coat Requirement: A person shall not use a gel coat which contains more than 250 grams of volatile compounds per liter of coating applied.
8-50-500 MONITORING AND RECORDS
8-50-501 - Records: Any polyester resin operation shall comply with the following requirements, as applicable:
501.1 Maintain a list of resin, catalyst, and cleaning material used.
501.2 Maintain a list of the weight of VOC (in percent) in the polyester resin materials and the grams of VOC per liter for the cleaning materials.
501.3 For vapor suppressed resins, maintain a list of the weight loss (grams per square meter) during resin polymerization, the monomer percentage, and the gel time for each resin.
501.4 Maintain records on a daily basis that provide the following information as applicable:
a. - the amount of each of the polyester resin materials and cleaning materials used.
b. - the volume of resin and cleaning materials used for touch-up and repair.
501.5 Such records shall be retained and available for inspection by the APCO for the previous 24-month period.
8-50-502 - Approved Emission Control System, Recordkeeping Requirements: Any person operating an approved emission control system to comply with Section 8-50-303 shall record key system operating parameters on a daily basis. (Adopted June 15, 1994)
8-50-600 MANUAL OF PROCEDURES
8-50-601 - Analysis of Samples: Samples from polyester resin operations shall be analyzed as follows:
601.1 Samples of gel coat as specified in Sections 8-50-307 shall be analyzed as prescribed in the Manual of Procedures, Volume III, Method 26.
601.2 Samples of cleaning materials as specified in Section 8-50-305.4 shall be analyzed as prescribed in the Manual of Procedures, Volume III, Method 31.
601.3 Samples of polyester resin material as specified in Sections 8-50-301 and 304 shall be analyzed as prescribed in the Manual of Procedures, Volume III, Method 23.
601.4 Samples containing parachlorobenzotrifluorides shall be analyzed as prescribed in th