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RULE §106.226Paints, Varnishes, Ink, and Other Coating Manufacturing

Coating manufacturing operations including raw material storage, weighing, mixing, milling, grinding, thinning, and packaging are permitted by rule, provided the conditions of this section are met. Coating manufacturing is defined as combining ingredients that are manufactured off-site to make paints, varnishes, sealants, stains, adhesives, inks, pigments, maskants, and paint strippers, etc. Resin manufacturing is not permitted by rule under this section.

  (1) Materials usage shall not exceed the following rates:

    (A) 345,000 gallons per year of solvent for all operations at a coating manufacturing site; and

    (B) 200,000 pounds of dry powder per year for all operations at a coating manufacturing site.

  (2) Operations involving powders which contain more than 0.1% by weight of chromium, cadmium, asbestos, lead, arsenic, cobalt, or strontium are not authorized by this section.

  (3) The following conditions must be met to prevent and control emissions.

    (A) There shall be no visible emissions from any emission point.

    (B) Bags or sacks of dry powders shall be opened within an enclosed bag slitter or within an enclosed area.

    (C) Material transfer, storage operations, or other similar operations shall be conducted in enclosed or covered containers which are opened only as necessary for transfer of ingredients.

    (D) Mixing, milling, packaging, and filling operations shall be conducted under a hood or within an enclosure designed to capture emissions, which shall then be vented externally or through a carbon adsorption system.

    (E) Operations which involve dry powders or pigments shall be vented through a filter.

    (F) Any spills of dry powders or solvents shall be cleaned up promptly in a manner designed to control emissions.

    (G) Waste materials shall be stored in covered containers and disposed of properly.

  (4) Emissions from any operation which are vented externally shall be exhausted using forced air through a stack with an unobstructed vertical discharge. The stack must be, at a minimum, four feet above the peak of the roofline.

  (5) The owner or operator of the facility shall keep records of all liquid and solid material usage rates on a monthly basis to demonstrate compliance with paragraph (1) of this section. The usage data shall be maintained for the most recent 24-month period.

Source Note: The provisions of this §106.226 adopted to be effective August 4, 1998, 23 TexReg 7830; amended to be effective September 4, 2000, 25 TexReg 8653

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