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What is the fire resistance rating of polytetrafluoroethylene (PTFE)?


Publication Time:

2022-01-10

What is the flame retardancy rating of polytetrafluoroethylene (PTFE)? The flame retardancy rating of polytetrafluoroethylene (PTFE) is V-0.

What is the fire resistance rating of polytetrafluoroethylene (PTFE)?

What is the flame retardancy rating of polytetrafluoroethylene (PTFE)? The flame retardancy rating of polytetrafluoroethylene (PTFE) is V-0.

Plastic flame retardancy ratings increase incrementally from HB, V-2, V-1 to V-0:

HB: The lowest flame retardancy rating in the UL94 and CSA C22.2 No. 0.17 standards. Requires a burning rate of less than 40 mm per minute for samples 3 to 13 mm thick; less than 70 mm per minute for samples less than 3 mm thick; or extinguishment before the 100 mm mark.

V-2: After two 10-second burn tests on the sample, the flame extinguishes within 60 seconds. Burning material may drop.

V-1: After two 10-second burn tests on the sample, the flame extinguishes within 60 seconds. No burning material may drop.

V-0: After two 10-second burn tests on the sample, the flame extinguishes within 30 seconds. No burning material may drop.