Silicone foam strips are a type of silicone products and belong to the category of extruded silicone. Because it is shaped like a sponge, it is called a silicone foam strip. Silicone foam strip is mainly a kind of silicone product with sealing and heat insulation function. Its texture is usually high density and relatively soft sponge body. It not only has strong UV resistance, high temperature resistance and flame retardancy. So how to identify the quality of silicone foam strips? The following is shared by Shenzhen Ruiqijia manufacturer:


     1. Wear resistance. For good-quality silicone foam strips, the surface material and text are not easy to be worn, so that not only can it fully demonstrate its excellent sealing performance during use, but also prolong the overall service life of the silicone foam strip.


     Two, flexibility. Since the movement of the molecular segments of the silica gel usually makes the silicone foam strip have relatively good elasticity, people can feel its resilience by hand when selecting the silica gel foam strip to identify its quality.


     Three, smell. For silicone foam strips produced with high-quality silica gel raw materials, the smell usually has a part of sour taste or the smell is not obvious. If there is too strong pungent smell, it means that the quality of the silicone foam strips is not good. .


     4. Burning smoke. Cut a small piece of silicone foam strip, and use tweezers to hold the cut part and light it with a lighter to observe the change of the smoke. If white smoke appears, it means the quality is better.


     Inferior silicone foam strips have a rough surface, poor strength, and are easily deformed and cracked after being folded. The nose has a pungent aromatic odor. After burning, due to the large amount of filling and less resin, the wire drawing is very short. A good silicone foam strip has a smooth surface, high strength, good elasticity, and no peculiar smell. When burning, the flame is yellow, the roots are green, and it smells of chlorine.




Please check the details about silicone foam:
https://www.siliconefoam.net/product-firm-cellular-silicone-iota-ht-820-.html