Profile: Tri-state Packing Supply, Inc. manufactures packing materials to pulp & paper, pharmaceutical/bioprocessing, power, chemical, municipal, and food & beverage industries. Our products include mechanical seals, mechanical packaging, gaskets, expansion joints, friction materials, machine shop and o-rings. Our in-house machine shop, mechanical seal rebuilding, die cutting, stripping, brake/clutch re-lining and vulcanizing facilities enable us to provide customized sealing solutions. We offer gaskets from compressed non-asbestos & spiralwounds to expanded teflon & grafoil and sheet rubber. We offer a large inventory of standard, metric & mil-spec o-rings backup rings, quad rings, square rings, cord stock, and o-ring kits, in a variety of materials & durometers.