DiscountRubberDirect.com offers high quality blend or Cork and Nitrile (NBR or BUNA N) rubber, which is ideal for applications with poor sealing conditions. The compressibility of the material performs well in low torque or bolt pressure flange gaskets, particularly in lower pressure service. Buna Cork is specifically designed for use as a low pressure water flange material when typical sealing surfaces are uneven. Buna Cork has a high oil, aromatic fuel, and solvent resistance making it ideal to use for general seal covers, crank cases on industrial equipment, sump pump seals, case covers, industrial inspection doors, machine valve covers, transformers, switchgear, and industrial lid applications. Buna Cork is relatively inexpensive compared to other sealing material options. The combination of Nitrile and cork seals well at low bolt torque and flange pressures. Its service temperature typically reaches 250°F. Shop DiscountRubberDirect.com and get the cheapest prices on your Buna Cork!