Chemical Properties of Teflon® Coatings

Property	ASTM Standard	Unit	Teflon® PTFE	Teflon® FEP	Teflon® PFA	Teflon® ETFE
Chemical/Solvent Resistance	D543	---	Excellent	Excellent	Excellent	Excellent
Water Absorption, 24 h	D570	%	<0.01	<0.01	<0.03	<0.03
Salt Spray Resistance (1) -on aluminum -on steel	B-117	Hours Hours	744+ 192	744+ ---	1000 ---	1000 ---
Detergent Resistance (2) -on aluminum -on grit-blasted aluminum -on grit-blasted steel	---	Hours Hours Hours	264 624 24	744 600 480	--- --- ---	--- --- ---
Weather Resistance	Florida Exposure	Years Unaffected	20	20	10	15
Notes: 1. Salt Spray Resistance: 5% NaCl at 35°C/95°F, hours to failure 2. Detergent Resistance: hours to failure Source: DuPont

CREST COATING, INC.
1361 South Allec Street • Anaheim, CA 92805 • Phone: 714-635-7090 • Fax: 714-758-8752

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