Indiana Administrative Code › Title 326 - AIR POLLUTION CONTROL DIVISION › Article 8 - VOLATILE ORGANIC COMPOUND RULES › Rule 21 - Aerospace Manufacturing and Rework Operations › Section 21-3 - VOC emissions control requirements

Current through July 10, 2024
Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11
Affected: IC 13-15; IC 13-17
Sec. 3.
(a) The owner
				or operator of a source that is subject to this rule shall not apply to
				aerospace vehicles or components any coatings, including any VOC containing
				materials added to the original coating supplied by the manufacturer, that
				contain VOC in excess of the limits specified as follows:
VOC Content Limit for Primers, Topcoats, and Chemical Milling
				  Maskants (lbs/gallon)a
Coating Type
Limit
Primer
2.9
Primer for general aviation rework
4.5
Exterior primer for large commercial aircraft
						  (components or fully assembled)
5.4
Topcoat
3.5
Topcoat for general aviation rework
4.5
Self-priming topcoat
3.5
Self-priming topcoat for general aviation rework
4.5
Chemical milling maskant, type I
5.2
Chemical milling maskant, type II
1.3
aCoating limits expressed in
						  terms of pounds of VOC per gallon of coating less water and less exempt
						  solvent.
VOC Content Limits for Specialty Coatings
				  (g/L)b
Coating Type
Limit
Coating Type
Limit
Ablative coating
600
Flight test coatings:
Adhesion promoter
890
Missile or single use aircraft
420
Adhesive bonding primers:
All other
840
Cured at 250°F or below
850
Fuel tank coating
720
Cured above 250°F
1030
High temperature coating
850
Adhesives:
Insulation covering
740
Commercial interior adhesive
760
Intermediate release coating
750
Cyanoacrylate adhesive
1020
Lacquer
830
Fuel tank adhesive
620
Maskants:
Nonstructural adhesive
360
Bonding maskant
1230
Rocket motor bonding adhesive
890
Critical use and line sealer maskant
1020
Rubber based adhesive
850
Seal coat maskant
1230
Structural autoclavable adhesive
60
Metallized epoxy coating
740
Structural nonautoclavable adhesive
850
Mold release
780
Antichafe coating
660
Optical antireflective coating
750
Bearing coating
620
Part marking coating
850
Caulking and smoothing compounds
850
Pretreatment coating
780
Chemical agent resistant coating
550
Rain erosion resistant coating
850
Clear coating
720
Rocket motor nozzle coating
660
Commercial exterior aerodynamic structure
						  primer
650
Scale inhibitor
880
Compatible substrate primer
780
Screen print ink
840
Corrosion prevention compound
710
Sealants:
Cryogenic flexible primer
645
Extrudable/rollable/brushable sealant
280
Dry lubricative material
880
Sprayable sealant
600
Cryoprotective coating
600
Silicone insulation material
850
Electric or radiation effect coating
800
Solid film lubricant
880
Electrostatic discharge and electromagnetic
						  interference (EMI) coating
800
Specialized function coating
890
Elevated temperature Skydrol resistant
						  commercial primer
740
Temporary protective coating
320
Epoxy polyamide topcoat
660
Thermal control coating
800
Fire resistant (interior) coating
800
Wet fastener installation coating
675
Flexible primer
640
Wing coating
850
bCoating limits expressed in
						  terms of mass (grams) of VOC per volume (liters) of coating less water and less
						  exempt solvent.
(b)
				The following coating applications are exempt from the VOC content limits
				listed in subsection (a):
(1) Touch-up,
				aerosol, and U.S. Department of Defense "classified" coatings.
(2) Coating of space vehicles.
(3) Facilities that use separate formulations
				in volumes of less than fifty (50) gallons per year subject to a maximum
				exemption of two hundred (200) gallons total for such formulations applied
				annually.