Lightweight Padding Soft Silicone Foam

Product Overview

F664 Soft liquid silicone Foam is a premium liquid silicone created for producing comfortable, lightweight foam parts. As a specialized manufacturer of Mold Making Silicone, RTV-2 silicone and Silicone raw materials, we developed the formula around comfort-product needs: plush softness, light weight, pressure-relieving elasticity and durable rebound. Unlike ordinary foam, this platinum-cured material does not migrate or compress-set after long use, cures in virtually any thickness without special equipment, and keeps cushions supportive and skin-contact friendly over time — helping procurement partners deliver comfort products that sell.

Key Features & Advantages

1. Plush, Tunable Expansion: Rises from 2x up to 7x volume, so you can set softness and density from a thin comfort layer to a thick cushion core.
2. Even Cells, Consistent Feel: Uniform micropores, low linear shrinkage and reliable compression rebound give every cushion the same soft, supportive touch.
3. Ultra-Light and Skin-Friendly: Cures to a featherlight, soft cellular foam that is non-toxic, non-corrosive and chemically inert, safe for close-contact goods.
4. Broad Temperature and Safety Profile: Remains flexible from -65℃ to 200℃; heat/cold resistant, electrically insulating and flame-retardant.
5. Simple Process and OEM Support: 1:1 A/B mix with standard stirring and vacuum degassing; hardness, density and packaging adjustable to your product, with Addition Curing Silicone chemistry for repeatable quality.

How to Use (Step-by-Step Guide)

1. Preparation: Stir Part A and Part B separately and thoroughly before use to re-blend any settled components.
2. Mixing: Combine Part A and Part B at a 1:1 weight ratio and stir slowly and evenly for 2–3 minutes until fully homogeneous.
3. Degassing and Pouring: Vacuum-degas the mixed compound and use it promptly to avoid premature foaming or trapped air; pour into the mold or cavity.
4. Curing and Handling: Let the material cure and expand in place. Keep it away from direct sunlight and high-temperature baking, and avoid contact with nitrogen, sulfur, phosphorus, tin, lead, cadmium, mercury, hexavalent chromium, PBB, PBDE and water. Store sealed in a cool, dry place.

Application Scenarios

This liquid Foam Silicone rubber is widely used for mattress toppers, sofa and seat cushions, chair and wheelchair pads, insoles, chest and shoulder pads, pregnancy back supports and children's pillows; for automotive headrests, gear covers and seat cushions; for seals, gaskets, weather strips, foam boards and tubes; and as soft filling for silicone robots and dolls. It helps procurement partners produce comfortable, lightweight and durable silicone products and strengthen competitiveness.

Technical Specifications

• Type: Two-component addition-curing liquid Foamed Silicone (platinum-catalyzed);
• Form: Free-flowing liquid Part A + Part B;
• Mix Ratio: A:B = 1:1;
• Mixing Time: 2–3 minutes;
• Expansion Ratio: 2x up to 7x volume (adjustable);
• Foam Structure: Uniform micropores;
• Linear Shrinkage: Low;
• Rebound: Reliable compression rebound;
• Operating Temperature: -65℃ to 200℃;
• Performance: Heat/cold resistant, electrically insulating, flame-retardant;
• Safety: Non-toxic, non-corrosive, non-radioactive, chemically inert;
• Packaging: Part A 25 / 200 / 250 kg drums; Part B 20 / 25 / 200 kg drums;
• Transport: Non-dangerous goods;
• Storage: Sealed, cool and dry place.

Certifications & Compliance

Our Soft Liquid Silicone Foam meets international standards: ISO 9001 (strict quality control), UL and CE Certification, satisfying global cushioning, comfort and foam industry requirements and trusted by silicone product makers and procurement partners worldwide.

Customization Options

We provide comfort-product-specific customization: adjust hardness, density and packaging to your cushion design; select expansion from 2x to 7x; tune softness, pore uniformity and rebound for thin layers or thick cores; and scale smoothly from sampling to mass production.

Production Process & Quality Control

We follow a strict 5-step quality control process: high-purity silicone raw materials screening, precision automated mixing, performance testing (expansion ratio, pore uniformity, shrinkage, rebound, temperature resistance), curing verification and sealed packaging. With 20 production lines, we ensure stable global supply; the product is non-hazardous and shipped as general cargo.

FAQ

Q: What is the correct mixing ratio?

A: Mix Part A and Part B at 1:1, stir for 2–3 minutes, vacuum-degas and use promptly.

Q: How much can it expand?

A: Adjustable from 2x to 7x volume, tuned to the softness and density your cushion requires.

Q: What is the service temperature?

A: Long-term use from -65℃ to 200℃, keeping soft elasticity and heat/cold resistance.

Q: Is it safe for skin-contact products?

A: Yes — non-toxic, non-corrosive, non-radioactive and chemically inert.

Q: How should it be stored?

A: Keep sealed in a cool, dry place; avoid direct sun, high-temperature baking and contact with N/S/P compounds, heavy metals, PBB, PBDE and water.