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Home >  Products >  TARDON (Flame Retardant Film) >  Flame Retardance

Flame Retardance

There are three combustibility types: flammable (combustible); flame retardant (difficult to burn); and nonflammable (does not burn).
Although there are many indices for evaluating flame retardance, we use the “UL-94 VTM method” and “oxygen index”.

UL-94 (VTM method: thin material test)

This is a flame retardance test of plastic materials created by US-based Underwriters Laboratories, Inc.
The scale for flame retardance is as follows. Good: VTM-0 > VTM-1 > VTM-2 > failure: Poor.

Oxygen index

This indicates the minimum oxygen concentration (percent volume) to maintain combustion of materials specified by the ASTM D 2863 and JIS K 7201 standards. An oxygen index of 26 or higher is generally understood to be in the flame-retardant range.

Oxygen index(%)=O2/(O2+N2)×100

Burn test

This is a video of a burn test of “TARDON NC-02AS” using a gas burner.
TARDON is highly flame resistant, and does not catch fire even when exposed to a gas burner.

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