"Gel coat" means a resin coating, either pigmented or clear, applied to the surface of a mold, that becomes an integral part of a polyester resin product, and that provides a cosmetic enhancement and improves resistance to degradation from exposure to the elements.
Ill. Admin. Code tit. 35, § 211.2610
Added at 18 Ill. Reg. 1253, effective January 18, 1994