SACAQMD RULE 465 POLYESTER RESIN OPERATIONS
LAST REVISED 02/06/97



RULE 465

POLYESTER RESIN OPERATIONS

Adopted 2-6-97


INDEX

100 GENERAL

200 DEFINITIONS

300 STANDARDS

400 ADMINISTRATIVE REQUIREMENTS

500 MONITORING AND RECORDS


100 GENERAL

101 PURPOSE: The purpose of this rule is to reduce emissions of volatile organic compounds from polyester resin operations.

102 APPLICABILITY: This rule applies to persons who operate polyester resin operations within Sacramento County.

103 EXEMPTION—LOW USAGE: The provisions of this rule, other than the record keeping requirements of Section 501, shall not apply to any person operating a polyester resin operation where the volume of polyester resin materials used is less than 20 gallons per month.

200 DEFINITIONS

201 AIRLESS SPRAY EQUIPMENT: Equipment for applying materials by use of fluid pressure without atomizing air, including heated airless spray.

202 AIR-ASSISTED AIRLESS SPRAY EQUIPMENT: Equipment for applying materials by use of fluid pressure to atomize coating and air pressure between 0.1 and 10 psig to adjust the spray pattern.

203 CATALYST: A substance added to resin to initiate or promote polymerization.

204 CLEANING MATERIAL: Any material containing a volatile organic compound (VOC) and used to clean hands, work areas, tools, molds, application equipment, and any other equipment related to a polyester resin operation.

205 CLOSED MOLD SYSTEM: A method of forming objects from polyester resin material by placing the polyester resin material in a confining mold cavity and applying pressure and/or heat.

206 CONTROL SYSTEM: Includes a control device and a collection system.

207 ELECTROSTATIC AIR SPRAY EQUIPMENT: Equipment used to apply materials by charging atomized particles that are deposited by electrostatic attraction.

208 ENCLOSED GUN CLEANER:

209 GEL COAT: A polyester resin topcoat that provides a cosmetic enhancement and improves resistance to degradation from exposure to the environment. A gel coat may be pigmented or may be clear.

210 HIGH-VOLUME LOW-PRESSURE (HVLP) APPLICATION EQUIPMENT: Equipment used to apply coatings by means of a gun which is designed to be operated and which is operated between 0.1 and 10.0 psig air pressure measured dynamically at the center of the air cap and at the air horns.

211 LOW-VOLUME-LOW PRESSURE (LVLP) APPLICATION EQUIPMENT: Spray coating application equipment with air pressure between 0.1 and 10.0 pounds per square inch gauge (psig) and air volume less than 15.5 cfm per spray gun and which operates at a maximum fluid delivery pressure of 50 psig.

212 MONOMER: An organic compound that combines with itself, or other similar compounds, to become a cured thermosetting resin.

213 POLYESTER RESIN: Unsaturated polyester resin such as isophthalic, orthophthalic, halogenated, bisphenol-A, vinyl-ester, or furan resin; cross-linking agent; catalyst, gel coat, inhibitor, accelerator, promoter, and any other VOC-containing material comprising a resin made from polyester. Inert filler and cleaning material are excluded from this definition.

214 POLYESTER RESIN OPERATION: The production or rework of products by mixing, pouring, hand lay-up, impregnating, injecting, forming, winding, spraying, and/or curing unsaturated polyester resin materials with fiberglass, fillers, or any other reinforcement materials, and associated cleanup.

215 POLYMER: A chemical compound comprised of a large number of chemical units and which is formed by the chemical linking of monomers.

216 POLYMERIZATION: to transform from a liquid to a solid or semi-solid state to achieve desired product physical properties, including hardness.

217 RESIN: Any of a class of organic polymers of natural or synthetic origin used in reinforced products to surround and hold fibers or filler particles, and is solid or semisolid in the cured state.

218 SPECIALTY RESIN: Any halogenated, furan, bisphenol-A, vinyl-ester, or isophthalic resin used to make products for exposure to one or more of the following extreme environmental conditions: acute or chronic exposure to corrosive agents, caustic agents, acidic agents, or flame.

219 VOLATILE ORGANIC COMPOUND (VOC): For the purposes of this rule, "volatile organic compound" has the same meaning as in Rule 101- GENERAL PROVISIONS AND DEFINITIONS.

NOTE: USE OF ACETONE IS EXEMPT FROM THE REQUIREMENTS OF RULE 465

220 VAPOR SUPPRESSANT: A substance added to resin to minimize the outward diffusion of monomer vapor into the atmosphere.

221 WASTE MATERIAL: Includes, but is not limited to, any paper or cloth used for cleaning operations, waste resins, or any spent cleaning materials.

300 STANDARDS

301 PROCESS AND CONTROL REQUIREMENTS:

302 SPRAY APPLICATION REQUIREMENTS: Spray application of polyester resin materials shall only be performed using airless, air-assisted airless, high-volume low-pressure (HVLP), low- volume/low-pressure (LVLP) or electrostatic spray equipment or other device which demonstrates a similar application efficiency as those above and is approved in writing by the Air Pollution Control Officer.

303 CLEANING MATERIAL REQUIREMENTS: Cleaning materials containing more than 1.7 pounds of VOC per gallon (204 gm/l)as applied and as determined by Section 504.2, shall not be used in polyester resin operations except:

NOTE: USE OF ACETONE IS EXEMPT FROM THE REQUIREMENTS OF RULE 465

304 STORAGE AND DISPOSAL REQUIREMENTS:

400 ADMINISTRATIVE REQUIREMENTS

401 COMPLIANCE SCHEDULE: A polyester resin operation which is subject to the requirements of this rule shall be in compliance no later than January 1, 1998.

402 CALCULATION FOR DETERMINING VOC WEIGHT PER VOLUME OF MATERIAL:

The weight of VOC per volume of material shall be calculated by the following equation:

403 CALCULATION FOR DETERMINING PERCENT MONOMER (STYRENE) CONTENT AS APPLIED:

The percent monomer content of a resin as applied shall be calculated by the following equations. Batch weight and styrene weight calculation shall be completed to provide inputs into percent monomer equation.

404 OPERATION AND MAINTENANCE PLAN: Any person using emissions control equipment pursuant to Section 301.2 shall submit an Operation and Maintenance Plan for the emissions control equipment to the Air Pollution Control Officer for approval. The Plan shall specify operation and maintenance procedures which will demonstrate continuous operation and compliance of the emissions control equipment during periods of emissions-producing operations. The Plan shall also specify which daily records must be kept to document these operations and maintenance procedures. These records shall comply with the requirements of Section 502. The Plan shall be implemented upon approval by the Air Pollution Control Officer.

405 PROCEDURE FOR PROCESSING OPERATION AND MAINTENANCE PLAN:

500 MONITORING AND RECORDS

501 RECORD KEEPING: Any person subject to this rule shall maintain records on the following basis:

502 FREQUENCY OF RECORD KEEPING

503 DURATION OF RECORDS: Records required by this section shall be maintained on-site for a continuous three-year period and made available to the Air Pollution Control Officer upon request.

504 TESTING METHODS: The analysis of polyester resin materials, cleaning materials, and collection/control efficiency shall be conducted using the following testing procedures: