Product Overview
liquid silicone foam, also widely referred to as Foamed Silicone or Silicone Sponge, is a high-performance dual-component addition curing RTV2 silicone rubber. It consists of two free-flowing liquid parts, Component A and Component B. After precise mixing, the material undergoes controlled chemical foaming and heat vulcanization to form lightweight, soft, highly elastic foam. A major advantage of this material is that there is no restriction on the thickness of finished products. The processing workflow is simple and adaptable to both manual small-batch trials and automated mass production. Once fully cured, the foam retains stable physical properties over a long service cycle. It will not suffer from atrophy, oil migration or structural fatigue under repeated compression, making it a reliable flexible foam material for custom fabrication and continuous manufacturing for worldwide B2B industrial buyers.
Technical Specifications
This industrial-grade foamed silicone adopts a standard **1:1 weight mixing ratio** for A and B components. It supports adjustable volume expansion from 2 to 7 times, allowing manufacturers to tailor density and softness according to end-product requirements. It delivers minimal linear shrinkage and excellent compression recovery after long compression cycles.
The cured foam maintains stable elasticity under repeated high and low temperature cycling environments. It is chemically inert and non-corrosive, with excellent electrical insulation performance. The raw material formula complies with RoHS, CE and ISO 9001 standards, ensuring safe application for automotive, electronics and consumer product industries.
Key Performance Characteristics
• Customizable foaming ratio: Adjust expansion multiple freely to obtain different density and softness, to satisfy diverse cushioning, shock absorption and sealing requirements
• Fine uniform cell structure: Tiny, evenly distributed pores after curing. Consistent foam texture guarantees stable product quality during large-scale continuous production
• Broad temperature tolerance: Remains soft and elastic under extreme cold and high-temperature working conditions, suitable for harsh industrial environments
• Eco-safe formula: Non-toxic, odorless and environmentally friendly. It can be used for household goods, automotive interior parts and wearable consumer products
• Low compression set: Can quickly recover its original shape after long-term compression, avoiding permanent deformation
• No thickness limitation: Manufacturers can cast thick or thin foam parts as needed without worrying about incomplete curing defects
Application Details
This liquid Silicone Foam has a broad range of industrial and consumer applications. It is widely used to produce sealing gaskets, sealing strips, foam boards, silicone foam tubes and sponge rollers for printing and copying equipment. In automotive manufacturing, it is used for car headrests, gear shift sleeves and seat cushions. For daily consumer goods, it can be made into silicone insoles, sofa cushions, mattresses, silicone chest pads, shoulder pads, maternity back support pads and children safety pillows. It is also used for fitness equipment components such as joint hammers and fitness bouncing balls.
Besides consumer goods, it serves as the ideal filling material for humanoid robot silicone skins, silicone mannequins and other flexible silicone products.
Custom Service
Shenzhen Hong Ye Jie Technology Co., Ltd (Brand: HONG YE SILICONE) offers professional custom formulation service. We can adjust hardness, foaming ratio, color and viscosity to match your unique project and production line requirements.
Operation Guidance
1. Stir Component A and Component B separately before use to re-homogenize any slight sediment generated during long storage.
2. Mix A and B at 1:1 weight ratio, stir thoroughly for 2–3 minutes to ensure full blending.
3. Apply vacuum deaeration after mixing, then pour or inject the mixture promptly. Avoid prolonged standing, which will cause premature foaming or curing failure.
4. Conduct heat vulcanization under the recommended temperature to achieve stable foam structure and consistent physical properties.
Packaging & Storage
Standard packaging: 25kg, 200kg drums for both A and B components. Classified as non-dangerous goods for convenient ocean and air shipment.
Store in sealed, cool and dry indoor warehouse. Keep away from direct sunlight, high temperature, sulfur, tin compounds, heavy metals and water contamination. These contaminants will inhibit platinum curing reaction and cause foaming failure.
FAQ
Q: What contaminants should I avoid during material handling?
A: Platinum addition-cured silicone is highly sensitive to sulfur, tin, heavy metal and moisture contamination. These substances will block the curing reaction and lead to uneven foaming, sticky surface or incomplete curing. All tools and molds must be fully cleaned before use.
Q: Can I get samples for lab testing before bulk purchase?
A: Yes, we provide small lab samples for formulation testing and production verification. You can test foaming effect, hardness and temperature resistance before placing bulk orders.
Shenzhen Hong Ye Jie Technology Co., Ltd
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