Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 218 - ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE CHICAGO AREA › Subpart HH - MOTOR VEHICLE REFINISHING › Section 218.780 - Emission Limitations

Current through Register Vol. 48, No. 28, July 12, 2024
a) Except
				as provided in Section 218.782 of this Subpart, no owner or operator of a motor
				vehicle refinishing operation shall coat motor vehicles, mobile equipment, or
				their parts and components, unless all coatings, except touch-up coatings,
				never exceed the VOM content limitations in this Section, expressed as units of
				VOM per volume of coating applied at each coating applicator, minus water and
				any compounds that are specifically exempted from the definition of VOM. The
				VOM content limitations are as follows:
kg/l
(lb/gal)
1)
Pretreatment wash primer
0.78
(6.5)
2)
Precoat
0.66
(5.5)
3)
Primer/primer surfacer coating
0.58
(4.8)
4)
Primer sealer
0.55
(4.6)
5)
Topcoat system or basecoat/clearcoat
0.60
(5.0)
6)
Three or four stage topcoat system
0.63
(5.2)
7)
Specialty coatings
0.84
(7.0)
8)
Anti-glare/safety coating
0.84
(7.0)
b)
				All coating shall be used according to manufacturer's specifications. If a
				coating requires the addition of a reducer, hardener, or other additive, in
				some combination, this addition must not cause the coating, as applied, to
				exceed the applicable VOM content limitation.
c) Specialty coatings shall represent no more
				than 5 percent, by volume, of all coatings applied at a source on a monthly
				basis.
d) The following equations
				shall be used to calculate the VOM content of topcoat systems:
1) The VOM content of basecoat/clearcoat
				systems shall be calculated in units of kg VOM/l (lbs VOM/gal) of coating,
				(minus water and any compounds which are specifically exempted from the
				definition of VOM), according to the following equation:
Image
Where:
VOM Tbc/cc
=
The weighted average of the VOM content, as applied,
							 in units of kg VOM/l (lbs VOM/gal) of coating, (minus water and any compounds
							 which are specifically exempted from the definition of VOM), in the basecoat
							 (bc) and clearcoat (cc) system;
VOMbc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given basecoat; and
VOMcc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given clearcoat.
2)
				The VOM content for a three stage coating system shall be calculated in units
				of kg VOM/l (lbs VOM/gal) of coating, (minus water and any compounds which are
				specifically exempted from the definition of VOM), according to the following
				formula:
Image
Where:
VOM Tms
=
The weighted average of the VOM content, as applied,
							 in units of kg VOM/l (lbs VOM/gal) of coating, (minus water and any compounds
							 which are specifically exempted from the definition of VOM), in the basecoat,
							 midcoat and clearcoat system;
VOMbc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given basecoat;
VOMmc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given midcoat; and
VOMcc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given clearcoat.
3)
				The VOM content for a four stage coating system shall be calculated in units of
				kg VOM/l (lbs VOM/gal) of coating, (minus water and any compounds which are
				specifically exempted from the definition of VOM), according to the following
				formula:
Image
Where:
VOM Tms
=
The weighted average of the VOM content, as applied,
							 in units of kg VOM/l (lbs VOM/gal) of coating, (minus water and any compounds
							 which are specifically exempted from the definition of VOM), in the basecoat,
							 midcoats and clearcoat system;
VOMbc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given basecoat;
VOMmc1
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of the first midcoat;
VOMmc2
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of the second midcoat; and
VOMcc
=
The VOM content, as applied, in units of kg VOM/l
							 (lbs VOM/gal) of coating, (minus water and any compounds which are specifically
							 exempted from the definition of VOM), of any given clearcoat.