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Related Knowledge of Foamed Silica Gel

Nov 5, 2020

Foamed silica gel is also called addition molding silica gel. It is composed of silica gel and curing agent at a ratio of 1:1. After being vulcanized, it becomes a soft elastic material. It is an environmentally friendly material, the products produced are non-toxic, tasteless, safe and sanitary. Flexible silicone rubber products such as human body, insoles, shoulder pads, patches, non-slip pads, etc. can be made. Tear strength: 55Kn/m; ductility: 100%; temperature range: -40-220℃; fire rating: 94V-0.
Liquid foamed silica gel has excellent electrical properties and chemical stability, water resistance, weathering resistance, non-toxic and odorless, low linear shrinkage, and easy operation.
The recommended ratio is curing agent: raw material=1:1, curing temperature: 120℃, curing time: 13-20 min. Do not contact with any other condensation type silica gel, otherwise it will cause curing agent poisoning.

The main purpose:Foaming silicone rubber is a two-component heated vulcanized silicone rubber. It is a white or skin-colored oily liquid. After vulcanization, it becomes a soft elastic material. The foam volume is 3-4 times the original; it can be made into human body, insole, shoulder Flexible silicone rubber products such as pads, patches, and non-slip pads.Suitable for industries such as thermal spray printing equipment, mechanical seals, and medical equipment. Foamed silica gel can meet the support needs of some national defense, military and civil industries in all aspects of equipment. Foamed silica gel is also suitable for electronic appliances, mechanical sealing and other industries. It can be used for compression and shock absorption, and can be used for a long time without cracking. It can be cut into sheets of any shape according to different requirements of customers, and glue can be prepared.

Main feature:The liquid foamed silica gel can be used for a long time under the temperature range of -65℃-200℃ and maintain its soft and elastic properties. It is environmentally friendly and non-toxic. It has passed the SGS environmental protection and non-toxic certification. It has excellent electrical properties and chemical stability, water resistance, ozone resistance, Weather-resistant, non-corrosive, physiologically inert, non-toxic and tasteless, low linear shrinkage, easy to operate, etc.
1. High foaming ratio; uniform foaming and good stability.
2. Non-toxic, non-corrosive, chemically inert;
3. The foam pore size is small and uniform;
4. Light weight, elasticity and good hand feeling;
5. No migration phenomenon occurs.

Precautions:This silica gel should not be in contact with any other condensed silica gel, otherwise it will cause the curing agent to be poisoned and the silicone will not be cured. Water, impurities, organotin catalysts, acids, alkalis and other organic substances containing sulfur, phosphorus, and nitrogen can affect the curing of the glue. Do not mix or contact these substances during use.

It is the most common product category in silicone products. At present, foamed silica gel is widely used in automobiles, aerospace, computers, electromechanical industries, fax machines, printers, automobile machinery, and kitchen appliances due to its stable chemical properties, high adsorption performance, high mechanical strength and good thermal stability. , Household appliances and other equipment.

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