250 R.I. Code R. 250-RICR-120-05-35.7

Current through November 7, 2024

Section 250-RICR-120-05-35.7 - Emission Limitations for Finishing Operations

35.7.1VOC Emission Limitations for Finishing Operations

A. The owner or operator of a facility subject to this regulation which has the potential to emit greater than or equal to twenty-five (25) tons per year of volatile organic compounds (VOC) shall limit VOC emissions from wood products finishing operations by:

1. Using finishing materials which comply with the emissions limitations listed in §35.7.1(B)(1) of this Part for coatings used prior to January 1, 2020 or §35.7.1(C)(1) of this Part for coatings used after January 1, 2020; or

2. Using a control system that achieves the emissions limitations in pounds of VOC per pound of solids listed in §35.7.1(B)(1) of this Part for coatings used prior to January 1, 2020 or §35.7.1(C)(1) of this Part for coatings used after January 1, 2020; or

3. Using finishing materials with a weighted average VOC content, within a particular category of coatings, as identified in §35.7.1(B)(1) of this Part for coatings used prior to January 1, 2020 or §35.7.1(C)(1) of this Part, for coatings used after January 1, 2020, which conforms with the provisions specified in §35.10.2(A) and (B) of this Part; or

4. Using a combination of the methods presented in §§35.7.1(A)(1) through (3) of this Part which is approved by the Department.

B. Prior to January 1, 2020, the owner or operator of a wood products coating facilty subject to this regulation shall meet the emission limitations listed in §35.7.1(B) (1) of this Part using one of more of the methods in §35.7.1(A)(1) through (4) of this Part.

1. Emissions Limitations for Coatings used Prior to January 1, 2020

Coating Category	lbs VOC/ gal coating minus water and exempt compounds	lbs VOC/lb solids
clear topcoats containing HOC	4.6	1.2
clear topcoats not containing HOC	5.7	2.5
fillers	4.2	1.0
high-solids stains	5.8	2.7
low-solids stains, toners and washcoats containing HOC	4.0	0.9
low-solids stains, toners and washcoats not containing HOC	6.7	7.5
inks	4.2	1.0
multi-colored coatings	5.7	2.5
pigmented coatings	5.0	1.6
sealers containing HOC	4.6	1.2
sealers not containing HOC	5.7	2.5

2. In addition to complying with the limitations in §35.7.1(B)(1) of this Part, on and after March 7, 1998, the owner or operator of a facility subject to this regulation which has the potential to emit greater than or equal to twenty-five (25) tons per year of VOC shall:

a. Use topcoats containing no more than 1.8 lbs VOC/lb solids, as applied, and sealers containing no more than 1.9 lbs VOC/lb solids, as applied; or

b. Use waterborne topcoats with a VOC content no greater than 0.8 lb VOC/lb solids, as applied; or

c. Use a control system that achieves equivalent reductions in VOC emissions from topcoats and sealers.

C. Effective January 1, 2020, the owner or operator of a wood products coating facility subject to this regulation shall comply with the emissions limitations in §35.7.1(C)(1) of this Part using one or more of the methods in §35.7.1(A)(1) through (4) of this Part.

1. Emissions Limitations for Coatings used after January 1, 2020

Coating operations	lbs VOC/lb of solid as applied
Finishing Operations Topcoat	0.8
Finishing system of topcoat and sealer
Topcoats	1.8
Sealers	1.9
Acid-cured alkyd amino vinyl sealers and acid-cured alkyd amino conversion varnish topcoat system, exclusively
sealer	2.3
topcoat	2.0
Non-acid-cured alkyd amino vinyl sealers and acid-cured alkyd amino conversion varnish topcoat system, exclusively
sealers	1.9
topcoat	2.0
Acid-cured alkyd amino vinyl sealers and non-acid-cured alkyd amino conversion varnish topcoat system, exclusively
sealer	2.3
topcoat	1.8

35.7.2VHAP Emission Limitations for Finishing Operations at Existing Facilities

A. The owner or operator of a facility subject to this regulation which is a major source of HAP from wood products manufacturing operations and which began operations before December 6, 1994, shall limit VHAP emissions from wood products finishing operations by:

1. Using stains, washcoats, sealers, topcoats, basecoats, and enamels with VHAP contents no higher than 1.0 lb VHAP/lb solids, as applied; thinners for stains, sealers, and topcoats that contain no more than ten percent (10%) VHAP by weight; thinners for washcoats, basecoats and enamels that contain no more than three percent (3%) VHAP by weight; or

2. Using finishing materials with a weighted average VHAP content of no greater than 1.0 lb VHAP/lb solids, as applied, calculated using the procedures in §35.10.2(C) of this Part, and thinners with VHAP contents as specified in §35.7.2(A)(1) of this Part; or

3. Using a control system that achieves a reduction in emissions equivalent to that which would be achieved by complying with the requirements of §§35.7.2(A)(1) or (2) of this Part, calculated according to the procedures in §35.10.3(C) of this Part; or

4. Using a combination of the methods presented §§35.7.2(A)(1) and (3) of this Part which is approved by the Department.

B. The formaldehyde content of a finishing material shall be calculated as the amount of free formaldehyde present in the finishing material when it is applied.

1. Total formaldehyde use in coatings and adhesives shall be no more than four hundred (400) pounds per rolling twelve (12) month period; or

2. Only low-formaldehyde (less than one percent (1%) formaldehyde by weight) coatings and adhesives shall be used in any wood product manufacturing operations.

C. The styrene content of a finishing material shall be based on an estimate of unreacted styrene, which shall be calculated by multiplying the amount of styrene monomer in the finishing material when it is applied by a factor of 0.16.

35.7.3VHAP Emission Limitations for Finishing Operations at New Facilities

A. The owner or operator of a facility subject to this regulation which is a major source of HAP from wood products manufacturing operations and began operation on or after December 6, 1994, shall limit VHAP emissions from wood products finishing operations by:

1. Using stains with VHAP contents no greater than 1.0 lb VHAP/lb solids, as applied; washcoats, sealers, topcoats, basecoats, and enamels with VHAP contents no greater than 0.8 lb VHAP/lb solids, as applied; thinners for stains, sealers, and topcoats that contain no more than ten percent (10%) VHAP by weight; and thinners for washcoats, basecoats and enamels that contain no more than three percent (3%) VHAP by weight; or

2. Using finishing materials with a weighted average VHAP content of no greater than 0.8 lb VHAP/lb solids, as applied, calculated using the procedures in §35.10.2(C) of this Part, and thinners with VHAP contents as specified in §35.7.3(A)(1) of this Part; or

3. Using a control system that achieves a reduction in emissions equivalent to that which would be achieved by complying with the requirements of §§35.7.3(A)(1) or (2) of this Part, calculated according to the procedures in provisions in §35.10.3(C) of this Part; or

4. Using a combination of the methods presented §§35.7.3(A)(1) and (3) of this Part which is approved by the Department.

B. The formaldehyde content of a finishing material shall be calculated as the amount of free formaldehyde present in the finishing material when it is applied.

1. Total formaldehyde use in coatings and adhesives shall be no more than four hundred (400) pounds per rolling twelve (12) month period; or

2. Only low-formaldehyde (less than one percent (1%) formaldehyde by weight) coatings and adhesives shall be used in any wood product manufacturing operations.

250 R.I. Code R. 250-RICR-120-05-35.7

Amended effective 1/13/2019