SACAQMD RULE 451 SURFACE COATING OF MISCELLANEOUS METAL PARTS AND PRODUCTS
LAST REVISED 09/05/96


RULE 451 SURFACE COATING OF MISCELLANEOUS METAL PARTS AND PRODUCTS

Adopted 6-19-79

(Amended 1-11-80, 12-14-82, 4-5-83, 11-29-83, 8-27-85, 9-29-87, 2-23-93, 9-5-96)


INDEX

100 GENERAL



200 DEFINITIONS



300 STANDARDS



400 ADMINISTRATIVE REQUIREMENTS



500 MONITORING AND RECORDS

100 GENERAL

101 - PURPOSE: To limit the emission of volatile organic compounds from the application of coatings to miscellaneous metal parts and products in a shop environment.

102 - APPLICABILITY: Except as provided in Section 303, the requirements of Rule 441 Organic Solvents shall not apply to coatings subject to this rule. The requirements of Rule 441 Organic Solvents shall apply to surface preparation and cleanup materials associated with the coating operations subject to this rule.

110 - EXEMPTION, LOW USAGE OF NON-COMPLIANT COATINGS: The requirements of Section 301 shall not apply to the use of any coating in a volume of less than 20 gallons in the continuous twelve (12) month period, designated under Section 402 of this rule provided the requirements in Sections 402 and 501 are satisfied and the combined total of all non-compliant low usage coatings used at the stationary source does not exceed 55 gallons in the same twelve (12) month period.

111 - EXEMPTION, SPECIFIC OPERATIONS AND COATINGS: The requirements of this rule shall not apply to:

112 - EXEMPTION, APPLICATION OF METALLIC COATINGS TO METAL CASKETS: The requirements of Section 301 shall not apply to the application of metallic coatings to metal caskets provided the stationary source complies with the requirements of Sections 405 and 501.

113 - EXEMPTION, AEROSOL CONTAINERS: The provisions of this rule shall not apply to coatings sold in non-refillable aerosol containers having a capacity of one liter (1.1 quarts) or less.

114 - EXEMPTION, TOUCH-UP AND REPAIR: Touch-up and repair operations are exempt only from Section 302.


200 DEFINITIONS

201 - AIR-DRIED COATING: Any coating which is not heated above 90oC (194oF) for the purpose of curing or drying.

202 - ADHESIVE: A coating which is applied for the purpose of bonding two surfaces together.

203 - ALUMINUM COATING FOR WINDOW FRAMES AND DOOR FRAMES: A coating which is applied in a shop environment and is used to protect prefabricated aluminum window frames and door frames and which is required to meet the specifications of Architectural Aluminum Manufacturers Association AAMA 605.2-1980

204 - BAKED COATING: Any coating which is heated above 90oC (194oF) for the purpose of curing or drying.

205 - CAMOUFLAGE COATING: A coating applied as a topcoat on equipment or military vehicles to conceal such equipment from detection.

206 - CLEANUP MATERIAL: A VOC-containing material used to clean application equipment used in miscellaneous metal parts and products coating operations.

207 - COATING: A material applied to a surface to identify, beautify, protect, or minimize detection of such surface.

208 - CONFORMAL COATING: A coating applied to electronic circuit boards or the assembled components for the purpose of moisture resistance, corrosion resistance, bacteria resistance or fungi resistance.

209 - ELECTRICAL INSULATING COATING: A coating which is applied to electrical components expressly for the purpose of electrical insulation.

210 - ENCLOSED GUN CLEANER: A device that is used for the cleaning of spray guns that is not open to the ambient air when in use and has a mechanism to force the cleanup material through the gun while the cleaner is in operation.

211 - EXEMPT COMPOUND: For the purposes of this rule, "exempt compound" has the same meaning as in Rule 101--GENERAL PROVISIONS AND DEFINITIONS.

212 - EXTREME HIGH GLOSS COATING: A coating which, when tested by American Society for Testing Materials test method D-523 adopted in 1980, shows a 75% reflectance on a 60o meter.

213 - EXTREME PERFORMANCE COATING: A coating that satisfies the requirements of Section 403 and is used on a metal surface where the coated surface in its intended use, is acutely or chronically exposed to salt water, corrosives, caustics, acids, oxidizing agents, wind or ocean driven debris or electromagnetic pulse.

214 - HAND APPLICATION EQUIPMENT: Manually held non-mechanically operated equipment.

215 - HEAT RESISTANT COATING: A coating used on a metal surface where the coated surface must withstand a temperature of at least 400 oF during normal use.

216 - HIGH-VOLUME LOW-PRESSURE APPLICATION EQUIPMENT: Application equipment with air pressure between 0.1 and 10.0 psig and air volume greater than 15.5 cfm per spray gun and which operates at a maximum fluid delivery pressure of 50 psig.

217 - LOW-VOLUME LOW-PRESSURE APPLICATION EQUIPMENT: Application equipment with air pressure between 0.1 and 10.0 psig and air volume less than 15.5 cfm per spray gun and which operates at a maximum fluid delivery pressure of 50 psig.

218 - MAGNETIC DATA STORAGE DISC: A flat film or plate with a magnetic coating on which digital information can be stored by selective magnetization of portions of the flat surface.

219 - MAKEUP SOLVENT: A VOC containing material added to the original coating supplied by the manufacturer to reduce the viscosity of the coating: also known as a reducer or thinner.

220 - MASKANT COATING: A coating applied directly to a metal surface to protect surface areas during chemical processing operations such as aging, anodizing, bonding, chemical milling, etching, or plating.

221 - METALLIC COATING: A coating which contains more than 5 grams of metal particles per liter of coating.

222 - MILITARY VEHICLE: A transportable structure which is owned, or operated, or maintained by the Department of Defense and is used primarily to move equipment or personnel from one location to another. The structure may be motorized or non-motorized but intended for towing by a motorized vehicle

223 - MISCELLANEOUS METAL PARTS AND PRODUCTS: Any metal part or product except for those specified in Section 111.

224 - NON-SKID COATING: Any coating which has, as its primary purpose, the creation of traction to prevent slippage.

225 - PRETREATMENT WASH PRIMER: A coating which contains at least 1/2 percent acid by weight, as determined in Section 502.2, is applied directly to metal surfaces to provide surface etching and corrosion resistance or adhesion of subsequent coatings. A Pretreatment Wash Primer is not a Surface Preparation Material as defined in Section 235.

226 - REPAIR: Recoating portions of previously coated products due to mechanical damage to the coating following normal coating operations.

227 - SAFETY-INDICATING COATING: A coating which is designed to have a color change when it is exposed to an unsafe condition such as a high temperature or an unsafe concentration of gas.

228 - SHOP ENVIRONMENT: A commercial, governmental, or educational stationary source where coatings are applied excluding those locations at which coatings subject to Rule 442, Architectural Coatings, are applied to items at the point of final assembly.

229 - SILICONE RELEASE COATING: A coating system used in the manufacturing process for solid rocket motors, applied to the casting tool so that it can be removed easily from the motor after the propellant is cast and cured around the tool.

230 - SOLAR ABSORBENT COATING: A coating which has, as its primary purpose, the absorption of solar radiation.

231 - SOLID FILM LUBRICANT: A dry lubricant coating used to reduce friction between faying metal surfaces. The coating consists of an organic binder system containing, as pigment material, one or more of the following substances: molybdenum disulfide, graphite, polytetrafluoroethylene (PTFE), lauric acid, cetyl alcohol, or waxes.

232 - STATIONARY SOURCE: Any building, structure, facility, or emissions unit which emits or may emit any affected pollutant directly or as a fugitive emission.

233 - STENCIL COATING: An ink or a coating which is applied by a template or stamp in order to add designs, letters and/or numbers to the product.

234 - STRIPPER: A type of surface preparation material applied to the surface of any miscellaneous metal part or product to completely remove maskants, coatings or coating residues.

235 - SURFACE PREPARATION MATERIAL: A VOC containing material applied to the surface of any miscellaneous metal part or product prior to the application of coatings to clean the substrate or to promote adhesion of subsequent coatings.

236 - TOUCH-UP: That portion of the coating operation which is incidental to the main coating process but necessary to cover minor imperfections.

237 - 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.


300 STANDARDS

301 - COATING LIMITS: Except as provided in Sections 110, 111, 112, 113, or 304, a person shall not apply to any miscellaneous metal part or product any coating that exceeds the following VOC limits. The VOC content of the coating shall be determined in accordance with Section 502.1.

Air Dried

Baked

Air Dried

Baked

Air Dried Baked

VOC content per volume of coating

Grams of VOC per Liter

Effective Dates

February 23, 1993

February 23, 1994

February 23, 1995

Type of Coating
Aluminum Coating for Window Frames and Door Frames 750 750
Camouflage 420 360
Electrical Insulating 540 480 340 275
Extreme High Gloss 420 360
Extreme Performance 750 750
Heat Resistant 420 360
Maskant

850

850

Non-Skid 420 360
Pretreatment Wash Primer

780

780

Silicone Release Coating 762 762
Solar Absorbent 420 360
Solid Film Lubricants

880

880

All Other Coatings 340 275

302 - APPLICATION EQUIPMENT REQUIREMENTS: A person shall not apply to any miscellaneous metal part or product any coating unless one of the following application methods is used:

303 - REQUIREMENTS FOR SURFACE PREPARATION AND CLEANUP MATERIALS: Any person using surface preparation and cleanup materials for miscellaneous metal parts and products coating operations shall comply with all of the following requirements:

304 - EMISSION CONTROL SYSTEM REQUIREMENTS: As an alternative to Section 301, a person may use air pollution control equipment provided the system has a control device efficiency of at least 95%, as determined in Section 502.4, and an emissions collection efficiency of at least 90%, as determined in Section 502.3.


400 ADMINISTRATIVE REQUIREMENTS

401 - COMPLIANCE SCHEDULE: Unless otherwise required by permit conditions all persons subject to any provision of this rule shall be in compliance by the following dates:

402 - LOW USAGE OF NON-COMPLIANT COATINGS PETITION: Any person requesting an exemption under Section 110 shall receive written approval from the Air Pollution Control Officer prior to using the non-compliant coating and comply with the following requirements:

403 - EXTREME PERFORMANCE COATING PETITION: Any person requesting a coating to be classified as an extreme performance coating shall receive written approval from the Air Pollution Control Officer prior to using the coating and comply with the following requirements:

404 - MANUFACTURERS LABELING REQUIREMENT: Manufacturers of any coating subject to this rule shall comply with one of the following requirements:

405 - PETITION FOR THE APPLICATION OF METALLIC COATINGS TO METAL CASKETS: Any person requesting an exemption under Section 112 shall petition the Air Pollution Control Officer in writing, prior to using the coating, and annually thereafter and receive written approval from the Air Pollution Control Officer and comply with the following requirements:

406 - CALCULATION FOR DETERMINATION OF VOC CONTENT PER VOLUME OF COATING: The volume of coating material is defined as the volume of the original coating plus any VOC-containing material added to the original coating. The weight of VOC per combined volume of VOC and coating solids shall be calculated by the following equation;



(Wv-Ww-Wec) / (Vm-Vw-Vec)

407 - OPERATION AND MAINTENANCE PLAN: Any person using an approved emission control device pursuant to Section 304 as a means of complying with this rule, as provided in Section 301, must submit, with the application for Authority to Construct, pursuant to Rule 201, General Permit Requirements, an Operation and Maintenance Plan for the emission control device to the Air Pollution Control Officer for approval. Plans for emission control devices installed as of February 23, 1993, if not previously submitted, must be submitted August 23, 1993 and receive approval of the Air Pollution Control Officer. The Plan shall specify operation and maintenance procedures which will demonstrate continuous operation of the emission control device during periods of emissions-producing operations. The Plan shall also specify which records must be kept to document these operation and maintenance procedures. These records shall comply with the requirements of Sections 501.3 and 501.4. The Plan shall be implemented upon approval of the Air Pollution Control Officer.


500 MONITORING AND RECORDS

501 - USAGE RECORDS: In addition to any existing permit conditions issued pursuant to Rule 201, or required as a condition of a petition for low usage or extreme performance, effective February 23, 1994 any person subject to this rule, including operations claiming exemption under Sections 110, 112 and 113, shall comply with the following requirements:

502 - TESTING PROCEDURES: