how to preliminarily judge whether the brush grommet is PA flame retardant.

As a professional manufacturer of brush grommet, this is certainly not difficult for us. So Aoqun immediately shown the difference between PA flame retardant and PP flame retardant with a small video.

It was found that the inner layer of the flame after brush grommet PA flame retardant combustion was light blue, the outer layer was yellow, the smoke density was relatively small and white smoke, and there were no drips after being extinguished. The flame-retardant brush grommet PP after burning is yellow inside and outside, it emits thick black smoke and has a pungent smell from time to time.