How to distinguish the authenticity of EPDM sealing strip

EPDM flame-retardant sealing strip is a common type, so how to distinguish EPDM sealing strip?

1. Smell. The bad rubber strip will have a certain odor, especially the nose. The normal rubber plastic flame-retardant sealing strip will only have the taste of plastic, and the base with good quality will not smell the taste.

2. Appearance. The appearance of the poor flame-retardant sealing strip is very rough at first sight, the hand feel is also very hard, and there is no pulling force. On the contrary, the good ones are glossy appearance, soft hand feel and tensile force.

3. Specific gravity. The proportion of the poor flame-retardant sealing strip is particularly heavy, that is, because the filler in the production selects the filling materials such as calcium or talcum powder, so the proportion of the flame-retardant sealing strip will be added, and the good flame-retardant sealing strip will directly choose calcium carbonate as the filling material.

4. Install the fire-retardant sealing strip of doors and windows on the profile or directly wrap it around the plastic profile and put it on the high temperature place for exposure. The bad rubber strip will change color directly through the high temperature and the contact surface of the profile, and the surface will also be stained with dust, and there will be yellowing and oil seepage.

The above analysis is expected to help you. Hongfeng vehicle parts Co., Ltd. designs, develops and produces various sealing strips, interior decoration strips, spray sealing strips, plastic steel door and window sealing strips (with double-sided adhesive) E-type, p-type, D-type, O-type, V-type, U-type, J-type, L-type and general-purpose type, mainly including PVC, EPDM, Sr, neoprene and TPE EPDM foam flexible sealing strip, household appliance sealing strip, furniture sealing strip, cabinet door sponge rubber sealing strip, rubber plastic (PVC) sealing strip, thermoplastic sealing strip, silicone rubber sealing strip, neoprene sealing strip, neoprene synthetic composite sealing strip, NBR (PVC) blending rubber plastic sealing strip, NBR foam sealing strip, highway, railway, bridge rubber expansion joint series, each Kinds of rubber seals (pads) hot melt adhesive, hot melt adhesive products professional manufacturers.