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Difference between silicone patch and PVC patch
Jan 16, 2019

Difference between silicone patch and PVC patch:


PVC rubber patch is mainly the use of plastic process in the mold into the liquid material, after a period of heating, baking, cooling, and then pouring molded plastic products.The main components of PVC rubber seal are DNP oil, PVC powder, stabilizer and soybean oil.

The silicone trademark is made of liquid silicone oil and solid silicone by vulcanizing machine heated in the mold.According to its properties and components, it can be divided into organic silicon and inorganic silicon.Inorganic silicon is a kind of highly active adsorption material, which is usually prepared by sodium silicate and sulfuric acid reaction and a series of post-treatment processes such as aging and acid bubble.Silica gel is insoluble in water and any solvent, non-toxic tasteless, environmental protection, stable chemical properties, in addition to strong alkali, hydrofluoric acid does not react with any material.Different types of silica gel have different microporous structures due to their different manufacturing methods.The chemical composition and physical structure of silica gel determine that it has many characteristics that are difficult to be replaced by other similar materials: high adsorption performance, good thermal stability, stable chemical properties, high mechanical strength and so on.

The main difference between the trademark of PVC rubber seal and the trademark of silica gel is that the material feels different. The silica gel has a higher environmental protection coefficient, which can be tested by the European Union. The smell of PVC rubber seal is strong, and the environmental protection coefficient is not high.


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