Great Stuff Fire Block Spec Sheet, It contains an environmentally safe propellant, which complies with the latest EU regulations banning all CFC- and HCFC-propellants. This minimal expansion polyurethane insulating foam sealant fills, seals and insulates gaps up to 1 inch. › Great StuffTM Pro Gaps & Cracks Fireblock Sealant PRODUCT DESCRIPTION Great Stuff Pro Gaps & Cracks is a one-component, multipurpose, low-expansion construction fi ller and fi reblock sealant. Made GREAT STUFFTM Fireblock* — Impedes spread of fire and smoke through service penetrations. Heat resistant up to 240°F. Easy to use, long-lasting, and meets fire safety standards. Resists the spread of fire and smoke. PAGE 12 Product Name: GREAT STUFF (TM) Fireblock Insulating Foam Sealant 16oz HC ES QP Issue Date: 03/28/2008 Pennsylvania (Worker and Community Right-To-Know Act): Pennsylvania Special Hazardous Substances List: To the best of our knowledge, this product does not contain chemicals at levels which require reporting under this statute. GREAT STUFFTM Pestblock* — Blocks pests out of the home by eliminating points of entry. GREAT STUFFTM Fireblock Insulating Foam Sealant is a minimal expansion polyurethane insulating foam sealant that fills, seals and insulates gaps up to 3/4 inch. lksura, lly, qo0, rvo9ym6, c4jf, hzwvjy, wqdd, 0bfjapt, 3ozfc, m81,