Two-Component Addition-Cure Foam Silicone rubber

Product Overview

Silicone Foam Rubber Material is a two-component addition-curing liquid silicone that foams chemically as soon as the A and B parts are mixed. It cures into a soft, lightweight, and environmentally safe foam with no restriction on thickness and easy processing. HONG YE SILICONE, a veteran manufacturer of Mold Making Silicone and RTV-2 silicone rubber, delivers this Foamed Silicone with consistent quality to buyers in more than 138 countries.

Technical Specifications

• Material: Two-part, platinum-catalyzed addition silicone
• Mix Ratio: 1:1 (A:B by weight)
• Expansion: 2× standard; up to 7× maximum
• Temperature Range: -65°C to +200°C continuous
• Key Traits: Uniform cells, low linear shrinkage, excellent rebound, flame retardant
• Certifications: ISO9001, UL, CE
• Packaging: A 25/250/200 kg; B 20/25/200 kg per drum
• Storage: Sealed, cool, dry; 12-month shelf life

Product Images and Videos

[Insert: A/B component packaging and liquid state | Foaming expansion in action | Cured foam cross-section | Finished seals, mattress layers, and lifecasting filler] [Insert video: Full production workflow from mixing to cured part inspection]

Product Features and Advantages

1. Material-Saving Expansion — Up to 7× volume increase means you use less silicone per finished part, lowering your cost per unit.
2. Uniform Foaming — Consistent cell structure with low shrinkage and reliable rebound gives repeatable part quality.
3. Soft and Featherlight — Premium elastic hand-feel with no migration, collapse, or shrinkage during service.
4. Eco-Friendly and Safe — Non-toxic, non-corrosive, non-radioactive, and chemically inert; suitable for body silicone and skin-contact uses.
5. Durable Across Temperatures — Maintains flexibility from -65°C to 200°C with strong heat, cold, electrical insulation, and flame resistance.
6. Easy to Process — Simple 1:1 ratio, no thickness limits, and compatibility with manual or automated production.

How to Use — Step by Step

1. Pre-stir Components A and B separately to ensure even distribution of settled ingredients.
2. Weigh and blend A and B at a 1:1 ratio, mixing for 2–3 minutes until fully uniform.
3. Degas the mixture under vacuum and use it promptly to prevent premature gelling.
4. Cast or inject into the mold and allow foaming and curing at room temperature or with gentle heating.

Application Scenarios

• Sealing and Insulation: Gaskets, sealing strips, foam sheets, silicone foam tubes, and copier/printer roller sponges.
• Automotive and Furniture: Headrests, gear shift covers, seat cushions, sofa and mattress padding.
• Health and Lifestyle: Bra inserts, shoulder pads, maternity back supports, infant pillows, and senior fitness equipment.
• Model and Filler: Core filling for silicone robots, lifecasting figures, and display models — complementing mold making silicone and Prototype silicone workflows.
• Electronics: Lightweight damping and filling alongside Electronic Potting Compound systems.

Value for Buyers: Reduced material spend, improved product consistency, and long-lasting sealing or cushioning that strengthens your end-product quality.

Certifications and Compliance

Produced under ISO9001 quality management with UL and CE certifications, meeting recognized international safety and environmental standards for smoother market entry.

Customization Options

Adjustable hardness and expansion ratio, custom color matching, viscosity tuning for automated dispensing, enhanced flame-retardant grades, and food-contact or medical-grade formulations available on request.

Production Process

Raw material inspection → precise A/B batching → vacuum compounding → laboratory tests (viscosity, expansion, hardness) → sealed packaging → final inspection before shipment. Backed by 48 production lines and 23+ years of silicone manufacturing expertise.

FAQ

Q: Can I get a sample before ordering?

A: Yes. We always provide pre-production samples before mass production and perform final inspection before shipment, so you can validate quality first.

Q: What is the pot life after mixing?

A: Typically 20–60 minutes at room temperature depending on grade. Degas and dispense promptly for best results.

Q: Are flame-retardant versions available?

A: Yes. We offer enhanced flame-retardant formulations for applications with stricter fire-safety requirements.

Q: How should leftover material be stored?

A: Keep both components in sealed containers in a cool, dry place. Do not return partially mixed material to original drums.

Q: Does part thickness affect foaming?

A: No. The product is not limited by thickness, allowing you to design thin gaskets or thick cushion blocks with consistent foam quality.