17 Packing, stopping and insulating materials, namely, caulking compounds; silicate sealants; adhesive silicate sealants; acrylic construction joint sealant; non-metal gaskets for airtight heating appliances, stoves, furnaces, stokers and fireplace inserts; fiberglass fireplace insert seals for insulation; adhesive sealing compounds for caulking; high temperature resistant latex sealant for caulking and adhesive purposes intended for use with stoves, stove piping and other high temperature applications; non-metal gaskets for air-tight heating appliances, stoves, furnaces, stokers and fireplace inserts