How to distinguish between silicone or PVC rubber

  Want to distinguish silicone or PVC rubber,you need know what is the difference between silicone and PVC?

  Silicone and PVC soft rubber are two materials commonly used in handicrafts.

 

   The main differences between silicone and PVC rubber are as follows:

PVC rubber

PVC rubber

1. In terms of material, PVC products are mainly made by mixing PVC powder (polyvinyl chloride) and oil, and color paste. The raw materials are made by heating and cooling by micro-injection glue dropping process. Silicone products are mainly made of silicone raw materials and color masterbatch Paste and other chemical elements are pressed and blended by the rubber mixer, and the required raw materials are made into the mold by heating and cooling by the hydraulic press. Silica gel has liquid silicone and solid silicone.

silicon rubber

Silicone rubber

2. From the appearance of the product, PVC products are rougher than silicone products, while the surface of silicone products is smooth and lustrous.
3. Judging from the hand feel, silicone products are soft, with good toughness and elasticity. PVC soft rubber is relatively less hard, and the hardness of both can be adjusted, but PVC has no toughness
4. PVC materials include ordinary materials and environmentally friendly materials, also called ATBC-PVC, while silica gel can pass ROHS certification and is environmentally friendly.
5. Silica gel products are generally made more transparent, the burning smell is relatively small, and the product is powdery, while PVC products will turn black after being burned with fire, and the smell is unpleasant when burned.
6. Silicone products are more resistant to heat and cold than PVC products. Silicone products can be heated in a microwave oven, but PVC cannot.


Post time: Mar-03-2023