MinGlas 3350 Fiberglass High Density Rope Gasket is made from high temperature texturized fiberglass with excellent insulation property and high tensile strength. The rope is firm and round braided to provide a tight seal. Resistant to abration and chemicals. No aging no shinkage. Excellent for seal gasket and insulation applications in wood stoves, furnaces, boilers, kilns, grills, ovens, BBQ, and many other heating devices.