PTFE ,The use of PTFE (polytetrafluoroethylene) Coated Washer Blue nonstick coatings is a two part system. Two coats are applied to the bolts, first a primer and next as a topcoat. Both PTFE coatings are essential to the long-lasting life of the fasteners. PTFE Coated Washer Blue possess the highest operating temperature of any fluoropolymer. Added benefits are a low coefficient of friction and good chemical resistance.

PTFE Coated Washer Blue  Color

 

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