Grapho-Glas Gasket Replacement Kit – Flat – 7′ X 3/4″ X 1/4″ Grapho-Glas gasket conveniently packaged with E-Z Spread Fiberglass Stove Gasket Cement. Graphite impregnated gaskets resist abrasion, creosote adhesion, and temperatures up to 1000 degreeF. They are braided to resist fraying. This brand is used by major stove manufacturers as well as replacements for worn out gaskets in wood and coal stoves or fireplace inserts. Grapho-Glas gasket lasts longer than white gasket.