Foam Insulation Product,
Foam Insulation Product, when used to describe a product containing or consisting of plastic foam, means a product containing or consisting of the following types of foam:
(1) Closed cell rigid polyurethane foam;
(2) Closed cell rigid polystyrene boardstock foam;
(3) Closed cell rigid phenolic foam; and
(4) Closed cell rigid polyethylene foam when such foam is suitable in shape, thickness and design to be used as a product that provides thermal insulation around pipes used in heating, plumbing, refrigeration, or industrial process systems.