A unique, multi-layered and 100% PTFE packing sealant. Chesterton 3500 is an anti-extrusion construction conforms to surface shapes that withstands a wide range of temperatures and seals virtually all chemicals.
It is ideal for valve packing and flange gaskets.
CAUTION: Do not use on liquid or gaseous oxygen, molten alkali metals, and some rare, halogenated compounds.
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