KERAPCD RULE 410.4 SURFACE COATING OF METAL PARTS & PRODUCTS          
LAST REVISED 04/06/95          

          
          RULE 410.4 Surface Coating of Metal Parts and Products -
                     Adopted 6/26/79, Renumbered 5/89, Amended 5/6/91,
                     7/12/93, 4/6/95

          I.    Applicability

                Provisions of this Rule shall apply to surface coating of
                metal parts or products.

          II.   Definitions

                A.  Aerospace Vehicle - complete aircraft, helicopter,
                    missile or space vehicle.

                B.  Air Dried - curing or drying a coating by heating the
                    coated object above ambient temperature, but below a
                    maximum of 90C (194F).

                C.  Baked - curing or drying a coating by heating the coated
                    object above ambient temperature to a temperature at, or
                    above 90C (194F).

                D.  Brush Coating - manually applying a coating to metal
                    parts or products using a brush or roller.

                E.  Camouflage Coating - coating applied on military
                    equipment intended to conceal such equipment from
                    detection.

                F.  Coating -  material applied to a metal part or product
                    and intended to provide decorative or protective
                    properties.

                G.  Coils - metal sheets or strips rolled into coils for
                    further industrial or commercial use.

                H.  Continuous Coating - spraying a coating onto metal parts
                    and products as they are conveyed through an enclosure
                    equipped with water wash zones controlling overspray at
                    the inlet and outlet and with excess coating draining
                    into a recirculation system.

                I.  Dip Coating - applying a coating to metal parts or
                    products by immersing the part in a solution (or
                    dispersion) containing the coating material, and then
                    withdrawing the part.

                J.  Electrodeposition - applying an electrically-charged 
                    dip coating onto an object to be coated.

                K.  Electrostatic Application - spraying an electrically-
                    charged coating onto an object.

                L.  Exempt Compounds-

                    methane,
                    carbon monoxide,
                    carbon dioxide,
                    carbonic acid,
                    metallic carbides or carbonates,
                    ammonium carbonates,
                    methylene chloride,
                    methyl chloroform (1,1,1-trichloroethane),
                    CFC-113 (trichlorotrifluoroethane),
                    CFC-11 (trichlorofluoromethane),
                    CFC-12 (dichlorodifluoromethane),
                    CFC-22 (chlorodifluoromethane),
                    CFC-23 (trifluoromethane),
                    CFC-114 (dichlorotetrafluoroethane),
                    CFC-115 (chloropentafluoroethane),
                    HCFC-123 (dichlorotrifluoroethane),
                    HFC-134a (tetrafluoroethane),
                    HCFC-141b (dichlorofluoroethane), and
                    HCFC-142b (chlorodifluoroethane).
       
                M.  Extreme Performance Coating - coating used on surface 
                    of metal parts or products, intended, during use, to be
                    exposed to any of the following:

                    1.  Industrial grade detergents, cleaners, or abrasive
                        scouring agents,

                    2.  Unprotected shipboard conditions, or

                    3.  Corrosive environmental conditions.

                N.  Flow Coating - applying a coating to metal parts or
                    products by flowing liquid over the part and draining
                    excess coating into a collection system.

                O.  Grams of VOC per Liter of Coating Applied, Excluding
                    Water and Exempt Compounds - weight of VOC per combined
                    volume of VOC and coating solids calculated using the
                    following equation:

                        Grams of VOC per Liter of
                        Coating Applied, Excluding
                        Water and Exempt Compounds = Ws - Ww - Wec
                                                     Vc - Vw - Vec


                    Where:  Ws   = weight of VOC in grams
                            Ww   = weight of water in grams
                            Wec  = weight of exempt compounds in grams
                            Vc   = volume of coating as applied in liters
                            Vw   = volume of water in liters
                            Vec  = volume of exempt compounds in liters

                P.  Grams of VOC per Liter of Material -  weight of VOC 
                    per volume of material  calculated using the following
                    equation:

                    Grams of VOC per Liter of Material = Ws - Ww - Wec
                                                              Vm

                    Where:  Ws   = weight of VOC in grams
                            Ww   = weight of water in grams
                            Wec  = weight of exempt compounds in grams
                            Vm   = volume of material in liters

                Q.  Heat Resistant Coating - coating designed during normal
                    use to withstand temperatures of at least 204C (400F).

                R.  High Gloss Coating - coating achieving at least 85%
                    reflectance on a 60 meter when tested by ASTM 
                    Method D-523/89.

                S.  High Performance Architectural Coating - coating used 
                    to protect architectural subsections meeting 
                    requirements of Architectural Aluminum Manufacturers 
                    Association publication number AAMA 605.2-1980.

                T.  High Temperature Coating - coating designed during
                    normal use to withstand temperatures of at least 
                    538C (1000F).

                U.  High Volume, Low Pressure Spray - applying coating to
                    metal parts or products using a gun operating between
                    0.1 and 10.0 psig air pressure and with liquid supply
                    pressure less than 50 psig.

                V.  Light-Duty Truck - truck having a manufacturer's gross
                    vehicle weight rating of under 6,001 pounds.

                W.  Magnet Wire - wire used in establishing electromagnetic
                    field in equipment such as transformers, motors,
                    generators, and magnetic tape recorders.

                X.  Marine Vessel - tugboat, tanker, freighter, passenger
                    ship, barge, or other boat, ship, or watercraft,
                    including both salt water and fresh water vessels.

                Y.  Metal Containers or Closures - interior or exterior 
                    of formed metal cans, drums, pails, or crowns; or flat
                    metal sheets intended to be formed into cans, drums,
                    pails, lids, or crowns.

                Z.  Metallic Iridescent Topcoat - coating as applied
                    containing more than 5g/1 (0.042 lb/gal) of visible
                    metal or iridescent particles.

                AA.  Metal Parts and Products - components or complete
                     units fabricated from metal, except those subject to
                     coating requirements of other source-specific Rules.

                BB.  Motor Vehicle - self-propelled device used to propel,
                     move, or draw upon a highway, a person or property
                     except a device moved by human power or used
                     exclusively upon stationary rails or tracks.

                CC.  Powder Coating - Coating applied without solvent or
                     other carrier as a dry, finely divided solid, adhering
                     to a substrate as a paint film when melted and fused.

                DD.  Pretreatment Wash Primer - coating containing a
                     minimum of 0.5% acid by weight, necessary to provide
                     surface etching, and applied directly to bare metal
                     surfaces to provide corrosion resistance and adhesion.

                EE.  Repair - recoating portions of previously coated metal
                     parts or products to cover mechanical damage to the
                     coating following normal painting operations.

                FF.  Roll Coating - applying a coating to metal parts or
                     products from a paint trough by a mechanical series 
                     of rollers.

                GG.  Silicone Release - coating containing silicone resin
                     and having as its primary function the release of food
                     products from metal surfaces such as baking pans.

                HH.  Solar Absorbent Coating - coating having as its
                     primary purpose the absorption of solar radiation.

                II.  Specialty Coating - coating necessary due to unusual
                     job performance requirements, including, but not
                     limited to, adhesion promoters, uniform finish
                     blenders elastomeric materials, gloss flatteners,
                     bright metal trim repair, and anti-glare/safety
                     coatings.

                JJ.  Touch Up Coating - coating applied by brush, airbrush,
                     detail HVLP spray equipment or hand-held, non-
                     refillable aerosol cans to repair minor surface damage
                     and imperfections, after main coating process, and not
                     exceeding nine square feet per unit.


                KK.  Volatile Organic Compound (VOC) - any compound
                     containing at least one atom of carbon except for
                     exempt compounds (see Subsection II.L.).


          III.  Exemptions

                A.  Requirements of this Rule, except for Subsection V.B.
                    (Record keeping) shall not apply to any combination of
                    coatings, provided total allowed facility VOC emissions
                    from use of all coatings does not exceed 15 pounds in
                    any one day.  Once a facility exceeds this emissions
                    threshold, it shall become subject to requirements of
                    this Rule.

                B.  Requirements of Subsection IV.C. (Applications 
                    Equipment Requirements) of this Rule shall not apply 
                    to touch-up, repair, or stenciling of identification 
                    numbers and letters.

                C.  Any source in full compliance with provisions of this
                    rule shall be exempt from otherwise applicable portions
                    of Rule 410 (Organic Solvents).

                D.  Requirements of this Rule shall not apply to application
                    of coatings to automobiles, light duty trucks, aircraft,
                    aerospace vehicles, marine vessels, cans, coils, or
                    magnetic wire or to powder coatings.

                E.  Requirements of this Rule shall not apply to an
                    operation subject to requirements of Rule 410.4A 
                    (Motor Vehicle and Mobile Equipment Refinishing 
                    Operations).
          
          IV.   Requirements

                A.  VOC Content Limits:  Except as provided by Subsection
                    IV.B., no person shall apply to any metal part or
                    product any coating with a VOC content in excess of the
                    following limits as applied:

                                 VOC Content Limits
                          (Grams of VOC per Liter Of Coating,
                        Less Water and Less Exempt Compounds)

                   Coating                   Baked             Air-Dried

                All coatings except          275 g/l           340 g/l
                those below:                 (2.3 lb/gal)      (2.8 lb/gal)

                Camouflage                   360               420
                                             (3.0)             (3.5)

                Extreme Performance          360               420
                                             (3.0)             (3.5)

                Heat Resistant               360               420
                                             (3.0)             (3.5)

                High Gloss                   360               420
                                             (3.0)             (3.5)

                High Performance             420               420
                  Architectural              (3.5)             (3.5)

                High Temperature             420               420
                                             (3.5)             (3.5)

                Metallic Topcoat             420               420
                                             (3.5)             (3.5)

                Pretreatment Wash Primer     275               340
                                             (2.3)             (2.8)

                Silicone Release             420               420
                                             (3.5)             (3.5)

                Solar Absorbent              360               420
                                             (3.0)             (3.5)

                B.  Alternate Emissions Control:  In lieu of complying with
                    VOC content limits specified in Subsection IV.A., air
                    pollution control equipment with a capture efficiency 
                    of at least 85% and a control device efficiency of at 
                    least 90% may be used.

                C.  Application Equipment Requirements:  No person shall
                    coat any metal part or product subject to provisions 
                    of this Rule unless one of the following methods is 
                    used:
   
                    1.  Brush, dip, or roll coating conducted in accordance
                        with equipment manufacturer's recommendations,

                    2.  Electrostatic or electrodeposition application
                        conducted in accordance with manufacturer's
                        recommendations,

                    3.  High Volume Low Pressure (HVLP) spray equipment
                        operated in accordance with equipment 
                        manufacturer's recommendations,

                    4.  Other application method demonstrated to achieve 
                        at least 65% transfer efficiency, for example, 
                        flow or continuous coating.

                D.  Surface Preparation and Equipment Cleanup Requirements:
                    No person shall conduct surface preparation or equipment
                    cleanup for activities subject to provisions of this
                    Rule unless the following VOC limits are met and methods
                    are used:

                    1.  Surface Cleaning:  No material shall be used
                        containing VOC in excess of 200 grams per liter 
                        (1.7 lb/gal) of material to remove dirt, oils, or 
                        other contaminants prior to application of surface
                        coatings or adhesives.

                    2.  Stripping:  No material shall be used containing 
                        VOC in excess of 200 grams per liter (1.7 lb/gal) 
                        of material to strip any coating.
    
                    3.  Cleaning of Coatings Application Equipment:
                        Solvents used for cleaning of coatings application
                        equipment shall comply with both limits specified
                        below:

                        a.  Solvent shall have a VOC content of 950 grams 
                            or less per liter (7.9 lb/gal) of material; and

                        b.  Solvent shall have a VOC composite partial
                            pressure of 35 mm Hg or less at 20C (68F).

                    4.  Cleaning of Polyester Resin Application Equipment:
                        Solvents used for cleaning polyester resin
                        application equipment shall comply with one of the
                        limits specified below:

                        a.  Solvent shall have a VOC content of 200 grams 
                            or less per liter (1.7 lb/gal); or

                        b.  Solvent shall have a VOC content of 1100 grams
                            or less per liter (9.2 lb/gal) and a VOC
                            composite partial pressure of 1.0 mm Hg or less
                            at 20C (68F).

                    5.  Cleaning-Devices and Methods:  No person shall
                        perform solvent cleaning operations unless one of
                        the following cleaning devices or methods is used:

                        a.  Wipe Cleaning;

                        b.  Spray bottles or containers with a maximum
                            capacity of 16 fluid ounces from which solvents
                            are applied without a propellant induced force;

                        c.  Cleaning equipment having a closed solvent
                            container during cleaning operations, except
                            when depositing and removing objects to be
                            cleaned, and closed during nonoperation except
                            during maintenance and repair of the cleaning
                            equipment itself;

                        d.  Remote reservoir cold cleaner operated in
                            conformance with Rule 410.3;

                        e.  System totally enclosing guns, cups, nozzles,
                            bowls, and other parts during washing, rinsing,
                            and draining procedures;

                        f.  Non-atomized solvent flow method collecting
                            cleaning solvent in a container or a collection
                            system closed except for solvent collection
                            openings and, if necessary, openings to avoid
                            excessive pressure build-up inside the
                            container; or

                        g.  Solvent flushing method discharging solvent 
                            into a closed container, except for solvent
                            collection openings and, if necessary, openings
                            to avoid excessive pressure build-up inside the
                            container.  Discharged solvent from such
                            equipment shall be collected in containers
                            without atomizing into open air.  Solvent may 
                            be flushed through the system by air or 
                            hydraulic pressure, or by pumping.

                E.  Storage and Disposal Requirements:  Regardless of VOC
                    content, all VOC-containing materials used in solvent
                    cleaning operations, such as solvents, and cloth and
                    paper moistened with solvents, shall be stored in 
                    non-absorbent, non-leaking containers kept closed at 
                    all times except when filling or emptying.

                F.  Prohibition of Sale:  No person shall offer for sale or
                    sell within the District any coating if such product is
                    prohibited by any provisions of this Rule.  This
                    prohibition shall apply to sale of any coating to be
                    applied at any physical location within the District.

                G.  Prohibition of Specification: No person shall solicit 
                    or require for use or specify application of a coating 
                    on metal parts and products if such use or application
                    results in a violation of provisions of this Rule.  
                    This prohibition shall apply to all written or oral 
                    contracts under terms of which any coating subject to 
                    provisions of this Rule is to be applied to any metal 
                    part or product at any physical location within the 
                    District.

          V.    Administrative Requirements

                A.  Labeling Requirements

                    1.  VOC Content: Each container (or accompanying data
                        sheet) of any coating subject to this Rule and
                        manufactured after May 6, 1992 shall display 
                        maximum VOC content of the coating as applied, 
                        including coating components, and after any 
                        thinning as recommended by the manufacturer.  VOC 
                        content shall be displayed as grams of VOC per 
                        liter less water and exempt compounds.  VOC 
                        content displayed shall be determined using 
                        Subsection VI.A. test methods or calculated using 
                        product formulation data if U.S. EPA approves this 
                        as equivalent to Subsection VI.A.

                    2.  Thinning Recommendations:  Each container (or
                        accompanying data sheet) of any coating subject to
                        this Rule and manufactured after May 6, 1992 shall
                        display a statement of manufacturer's recommendation
                        regarding thinning of the coating.  This requirement
                        shall not apply to thinning of coatings with water.

                B.  Record Keeping Requirements

                    Any person subject to Section IV. or exempt by
                    Subsection III.A. shall maintain and have available
                    during an inspection:

                    1.  A current list of VOC containing products in use
                        containing all data necessary to evaluate
                        compliance, including the following information, 
                        as applicable:

                        a.  Material name and manufacturer's identification,

                        b.  Application method,

                        c.  Material type and specific use instructions,
           
                        d.  Specific mixing instructions,

                        e.  Maximum VOC content of coating as applied,
                            including thinning solvents, hardeners, etc.,
                            excluding water and exempt compounds, and

                        f.  Coating composition and density.

                    2.  Daily coating and solvent use records, including 
                        the following information for each:

                        a.  Volume used of each component and mix ratio,

                        b.  VOC content in grams/liter (or pounds/gallon) 
                            as applied/used,

                        c.  Volume in liters (or gallons) applied/used.

                    3.  Capture and control equipment operating records, 
                        if applicable, including:

                        a.  Periods of operation corresponding to use
                            records kept for Subsection V.B.2. showing
                            control equipment was used as necessary,

                        b.  Key system operating parameters showing
                            operation as required to comply with this Rule
                            and as intended by manufacturer,

                        c.  Date performed, and description of all control
                            system maintenance.

                        Facilities exempt by Subsection III.A. may maintain
                        records on an extended basis provided such records
                        show emissions are less than 15 pounds for the
                        entire extended period.

                        All records shall be retained and made available for
                        inspection by the Control Officer for at least three
                        years.

          VI.   Test Methods

                A.  Analysis of Samples - Samples of VOC as specified in
                    this Rule shall be analyzed by U.S. EPA Method 24 and
                    analysis of halogenated exempt compounds shall be
                    conducted using CARB Method 432, or ASTM D-4457-85 and
                    be consistent with provisions set forth in the Federal
                    Register (FR. Vol. 56, No. 52, March 18, 1991).

                B.  Determination of Emissions - Emissions of VOC shall be
                    measured by U.S. EPA Method 25, 25A, or 25B, as
                    applicable.

                C.  Determination of Capture Efficiency - Where add-on
                    control equipment is utilized, capture efficiency 
                    shall be determined in accordance with 40 CFR 52.741.

                D.  Quantification of Metallic/Iridescent Topcoat -
                    Quantification of coating as a metallic/iridescent
                    topcoat shall be determined by South Coast Air Quality
                    Management District "Test Method 311-91, "Analysis of
                    Percent Metals in Metallic Coatings by Spectrographic
                    Method."

                E.  Measurement of Acid Content - Acid content of Pre-
                    Treatment Wash Primers shall be conducted and reported
                    in accordance with ASTM D1613-85 Standard Test Method
                    for Acidity in Volatile Solvents and Chemical
                    Intermediates used in Paint, Varnish, Lacquer, and
                    Related Products.

                F.  Demonstration of Transfer Efficiency - Transfer
                    efficiency shall be demonstrated using South Coast Air
                    Quality Management District Method "Spray Equipment
                    Transfer Efficiency Test Procedure for Equipment User."

                G.  Determination of VOC Composite Partial Pressures - VOC
                    composite partial pressures shall be determined using
                    either manufacturer's information regarding formulation
                    or using ASTM methods E168-92, E169-93, or E260-91 for
                    determination of mole fractions and then summing
                    products of each VOC component's vapor pressure and its
                    mole fraction.  For materials containing no non-VOC
                    components, VOC composite partial pressure can be
                    measured directly by ASTM Method D2879-86.

                H.  Determination of VOC Emissions From Spray Gun Cleaning
                    Systems - VOC emissions from spray gun cleaning systems
                    shall be made using South Coast Air Quality Management
                    District "General Test Method for Determining Solvent
                    Losses from Spray Gun Cleaning Systems".

          VII.  Compliance Schedule

                A.  Any person becoming subject to requirements of this 
                    Rule by loss of exemption shall comply with the 
                    following increments of progress:

                    1.  Within 6 months from date exemption is lost, submit
                        a complete application for an Authority to construct
                        control equipment, if necessary; and

                    2.  Within 12 months from date exemption is lost, be in
                        full compliance with requirements of this Rule.

                B.  Any new proposed surface coating of metal parts or
                    products operation not exempt by Section III, shall
                    demonstrate its ability to comply with requirements 
                    of Rule prior to issuance of Authority to Construct.