SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT

RULE 451 - SURFACE COATING OF MISC. METAL PARTS & 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, 10-02-97)

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, coating removers (strippers), surface preparation material, and cleanup material to miscellaneous metal parts and products in a shop environment.

102 APPLICABILITY: The provisions of this rule shall apply within the District to the coating of miscellaneous metal parts and products including coating removal (stripping), surface preparation and cleanup operations by any person, as defined in this rule. The requirements of Rule 441, ORGANIC SOLVENTS, shall not apply to operations subject to this rule.

103 SEVERABILITY: If any section, subsection, sentence, clause, phrase, or portion of this rule is, for any reason, held invalid, unconstitutional, or unenforceable by any court of competent jurisdiction, such portion shall be deemed as a separate, distinct, and independent provision, and such holding shall not affect the validity of the remaining portions thereof.

110 EXEMPTION, LOW USAGE OF MATERIALS EXCEEDING VOC CONTENT LIMITS:

111 EXEMPTION, SPECIFIC OPERATIONS AND COATINGS: Except as required by Section 501 the requirements of this rule shall not apply to:

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

113 EXEMPTION, APPLICATION EQUIPMENT: The requirements of Section 303 do not apply to the following:

200 DEFINITIONS

201 ADHESIVE: Any substance that is used to bond one surface to another surface by attachment.

202 AEROSOL CONTAINER: A hand-held, nonrefillable container which expels pressurized product ingredients by means of a propellant-induced force.

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

204 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, window walls, and door frames and which is required to meet the specifications of Architectural Aluminum Manufacturers Association AAMA 605.2-1980.

205 APPURTENANCES: Accessories to a stationary structure, including, but not limited to: hand railings, cabinets, bathroom and kitchen fixtures, fences, rain-gutters and down-spouts, window screens, lamp-posts, heating and air conditioning equipment, other mechanical equipment, large fixed stationary tools and concrete forms.

206 APPLICATION EQUIPMENT: A device used to apply coatings or used in preparing a coating material such as stir sticks or funnels.

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

208 CAMOUFLAGE COATING: A coating applied as a topcoat on equipment to conceal such equipment from detection.

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

210 CLOSED CONTAINER: A container which has a cover where the cover meets with the main body of the container without any visible gaps between the cover and the main body of the container.

211 COATING: A material applied to a surface to identify, beautify, protect, convey a message, or minimize detection of such surface.

212 COATING REMOVER (STRIPPER): A material applied to the surface of any miscellaneous metal part or product to completely remove maskants, coatings or coating residues. A coating remover (stripper) is not a surface preparation material or cleanup material. Material used for the removal of overspray is not considered a coating remover.

213 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.

214 DIP COAT: A coating method which is applied by dipping an object into a vat of coating material and allowing any excess coating material to drain off.

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

216 ENCLOSED GUN CLEANER:

217 END USER: Any person applying any coating, coating remover (stripper), surface preparation material, or cleanup material subject to this rule.

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

219 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.

220 EXTREME PERFORMANCE COATING: A coating that is used on a metal surface where the coated surface, in it's intended use, is acutely or chronically exposed to salt water, corrosives, caustics, acids, oxidizing agents, wind or ocean driven debris or electromagnetic pulse.

221 FLOW COAT: A coating method which is applied by flowing a stream of coating over an object and allowing any excess coating material to drain off.

222 HAND APPLICATION EQUIPMENT: Manually held equipment such as brushes, rollers, trowels, spatulas, daubers, rags, sponges, and mechanically or pneumatically driven syringes that do not atomize the applied products. .

223 HAND LETTERING: A method utilizing hand application equipment to add letters and/or numbers on a substrate.

224 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.

225 HIGH-VOLUME LOW-PRESSURE 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 psig air pressure measured dynamically at the center of the air cap and at the air horns.

226 LOW-VOLUME LOW-PRESSURE 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.

227 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.

228 METALLIC/IRIDESCENT COATING: Any coating which contains more than 5.0 g/l (0.042 lb/gal) of metal or iridescent particles, as applied, where such particles are visible in the dried film.

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

230 NON-COMPLIANT COATING: A coating or surface preparation material that exceeds the VOC content limits specified in Section 301, 302 or 304.5 and the usage is in excess of allowable volumes per Section 110.

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

232 PREFABRICATED ARCHITECTURAL COMPONENT: Prefabricated metal parts and products which are to be used as architectural appurtenances or structures and which are coated in a shop environment, not including window frames and door frames.

233 PRETREATMENT WASH PRIMER: A coating which contains at least ½ percent acid by weight, as determined in Section 502.2, and 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 242.

234 REPAIR COATING: A coating used to recoat portions of a product which has sustained mechanical damage to the coating following normal coating operations.

235 ROLL COATER: A series of mechanical rollers that forms a thin coating film on the surface of the roller, which is applied to a substrate by moving the substrate underneath the roller.

236 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.

237 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.

238 SILICONE RELEASE COATING: A coating which contains silicone resin and is intended to prevent a substance from sticking to metal surfaces such as baking pans.

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

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

241 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.

242 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.

243 TEXTURED FINISH: A rough surface produced by spraying large drops of coating onto a substrate or previously applied coating.

244 TOUCH-UP COATING: A coating used to cover minor coating imperfections appearing after the main coating operation.

245 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.

246 VOLATILE ORGANIC COMPOUND (VOC) AS APPLIED: For the purpose of this rule, VOC as applied means the VOC content including thinners, reducers, hardeners, retarders, catalysts and additives calculated pursuant to Sections 403 or 404 as applicable.

300 STANDARDS

301 VOC CONTENT OF COATINGS FOR MISCELLANEOUS METAL PARTS AND PRODUCTS: Except as provided in Sections 110, 111, 112, or 305, a person shall not apply to any miscellaneous metal part or product any coating that exceeds the following VOC content limits. The VOC content of the coating shall be determined in accordance with Section 502.1.

VOC CONTENT: Grams/Liter (Lbs/Gal)

less water and exempt compounds

 

 

APRIL 1, 1998

OCTOBER 1, 1998

COATING CATEGORY

AIR DRIED

BAKED

AIR DRIED

BAKED

AIR DRIED

BAKED

Aluminum Coating for Window Frames and Door Frames



750 (6.3)



750 (6.3)



600 (5.0)



600 (5.0)



420 (3.5)



420 (3.5)

Camouflage

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

Electrical Insulating

340 (2.8)

275 (2.3)

340 (2.8)

275 (2.3)

340 (2.8)

275 (2.3)

Extreme High Gloss

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

Extreme Performance

750 (6.3)

750 (6.3)

420 (3.5)

420 (3.5)

420 (3.5)

420 (3.5)

Heat Resistant

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

VOC CONTENT: Grams/Liter (Lbs/Gal)

less water and exempt compounds

 

 

APRIL 1, 1998

OCTOBER 1, 1998

COATING CATEGORY

AIR DRIED

BAKED

AIR DRIED

BAKED

AIR DRIED

BAKED

Metallic/Iridescent

-----

-----

420 (3.5)

420 (3.5)

420 (3.5)

420 (3.5)

Non-Skid

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

Prefabricated Architectural

Component

-----

-----



420 (3.5)



275 (2.3)



420 (3.5)



275 (2.3)

Pretreatment Wash Primer

780 (6.5)

780 (6.5)

420 (3.5)

420 (3.5)

420 (3.5)

420 (3.5)

Silicone Release Coating

762 (6.4)

762 (6.4)

420 (3.5)

420 (3.5)

420 (3.5)

420 (3.5)

Solar Absorbent

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

420 (3.5)

360 (3.0)

All Other Coatings

340 (2.8)

275 (2.3)

340 (2.8)

275 (2.3)

340 (2.8)

275 (2.3)

302 VOC CONTENT FOR COATING REMOVERS (STRIPPERS): Effective October 1, 1998, a person shall not use a stripper on miscellaneous metal parts and products which contains more than 200 grams of VOC per liter of material (1.7 pounds per gallon).

303 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:

304 SURFACE PREPARATION, CLEANUP AND STORAGE REQUIREMENTS: Any person subject to this rule shall comply with the following requirements:

305 EMISSION CONTROL SYSTEM REQUIREMENTS: As an alternative to Section 301, 302 304.3 and 304.5, a person may use air pollution control equipment subject to the approval of the Air Pollution Control Officer, that provides an overall system efficiency, as determined by Section 406, of not less than 85%.

400 ADMINISTRATIVE REQUIREMENTS

401 LOW USAGE EXEMPTION SUBMITTAL: Effective January 31, 1999, and annually thereafter, the total previous calendar year usage records, as specified in Section 501.3a(3), for all coatings exceeding the VOC limits specified in Sections 301, 302 and 304.5 shall be submitted to the Air Pollution Control Officer by January 31.

402 PRODUCT INFORMATION REQUIREMENTS FOR SELLERS: Any person who sells any coating, coating remover (stripper), surface preparation or cleanup material subject to this rule shall provide the following information on material data sheets made available to the purchaser at the time of sale:

403 CALCULATION FOR DETERMINING VOC CONTENT OF COATINGS, LESS WATER AND EXEMPT COMPOUNDS: 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;

404 CALCULATION FOR DETERMINING VOC CONTENT OF COATING REMOVERS (STRIPPERS) AND SURFACE PREPARATION AND CLEANUP MATERIAL: The volume of material is defined as the volume of the original material, plus any VOC-containing material added to the original material. The weight of VOC per total volume of material shall be calculated by the following equation;

405 CALCULATION FOR DETERMINING PERCENT CONTROL EFFICIENCY AND VOC MASS EMISSION RATE: The VOC mass emission rate shall be calculated both upstream and downstream of the emissions control device based on the respective VOC mass concentration and volumetric flowrate, pursuant to Section 502.4 and the following equation:

The percent control efficiency is calculated as follows:

406 CALCULATION FOR DETERMINING OVERALL SYSTEM EFFICIENCY: The overall system is calculated as follows:

407 OPERATION AND MAINTENANCE PLAN: Any person using an approved emission control device pursuant to Section 305 as a means of complying with this rule, as provided in Section 301,302, 304.3 and 304.5, 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. 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 501.4 and 501.5. The Plan shall be implemented upon approval of the Air Pollution Control Officer.

500 MONITORING AND RECORDS

501 RECORDKEEPING FOR END USERS: In addition to any existing permit conditions issued pursuant to Rule 201, any person within the District subject to this rule, including operations claiming exemption under Sections 110, shall comply with the following requirements:

502 TESTING PROCEDURES: