Silicone tubing is made by adding raw silicone rubber to a double roll rubber mixing machine or a closed kneading machine, gradually adding white carbon black and other additives, and repeatedly refining them evenly. According to the technical standards of the industry, the product is made by extrusion. Products made by extrusion will stick together after being stored together for a long time. Silicone tubes extruded by peroxide vulcanization will still stick together after being stored for a long time after secondary vulcanization. What is the reason for this? What is the solution? Seeing that the surface of the extruded silicone tube from a peer company is frosted and foggy, is it enough to reduce the viscosity of the extruded silicone tube surface?

1、 Add isolation agent before secondary vulcanization after extrusion of silicone tube.

2、 The sandblasting on the surface of silicone tubing should be related to the extrusion nozzle shape.

3、 The main reason lies in the ratio of silane coupling agent, hydroxy silicone oil, zinc stearate, and vulcanizing agent in the mixing of silicone gel, which requires specific design of the mixing material ratio and mixing process to solve both aspects.

4、 What if the viscosity of silicone is too high? You can adjust the formula during the next production by adding more base material 107 and silicone oil appropriately Or add less meteorological silicon without changing the base material and silicone oil The specific situation depends on the performance of the required adhesive Meanwhile, pay attention to the yield value of calcium powder in future production Sometimes high moisture content can also affect viscosity.