Silicone foam is suitable for extrusion, molding and calendering of silicone. The density of silicone foam products (0.3-0.7g/cm3), fine cross-sectional cells, similar to the three-dimensional structure of honeycomb, has good resilience and mechanical strength, and the hardness is 6-35 A Shore compounded and pushed through ROHS SGS FDA . The product is insulating, environmentally friendly, non-toxic and odorless, and has good flexibility. Long service life, compression resistance, acid and alkali resistance, anti-aging, anti-ultraviolet. The high temperature resistance can reach above 300°C without deformation for a long time, and it can reach 350°C for continuous use within 72 hours.

Advantages: 1. Anti-ultraviolet, anti-ozone, extreme temperature resistance and flame retardancy 2. Strong sealing ability, which can effectively prevent tiny particles and rain. 3. Sealing, dust-proof, moisture-proof, air-tight and light-shielding, vibration isolation, fire prevention 4. Used in electronic equipment and vehicle interior vibration isolation 5. Cushion pads and gaskets.

Silicone foam is divided into open-cell foamed silica gel and closed-cell foamed silica gel.

Open-cell foamed silica gel, as the name implies, is open-celled, which means that the pores communicate with each other. Features of open-cell foamed silica gel: Silicone products feel soft and delicate;

Closed-cell foamed silica gel is a kind of microporous foam structure in which the pores are not communicated with each other, and the closed-cell foam is separated from each other and not ventilated from each other. Closed-cell foamed silicone is characterized by good resilience and compression.

The vulcanization process of silicone foam is divided into two processes, that is, the vulcanization process of foamed silica gel and the decomposition process of foaming agent. If you want to open cells and foam, you must adjust the vulcanization system so that the decomposition process of foaming agent is earlier than that of foamed silica gel. vulcanization process. To put it simply, the foaming agent is decomposed first to generate bubbles and before the crosslinking starts, the bubbles will break through the binding force of the silica gel to form pores connected to each other, and then the crosslinking process of the silica gel begins to pass through the silica gel. Crosslinking is the process by which air bubbles are held in place. This depends on different formulations, materials, and vulcanization systems.


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