F664 Two-Part Foaming Silicone for Lightweight Seals

Product Overview

Liquid Silicone Foam is a two-component addition-curing silicone rubber that expands chemically when the A and B liquids are combined. It cures into a soft, featherweight, eco-friendly foam with no thickness limitation and simple operation. HONG YE SILICONE, a long-standing manufacturer of mold making silicone and RTV-2 silicone rubber, delivers this foamed silicone with stable quality to buyers in over 138 countries.

Technical Specifications

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

Product Images and Videos

[Insert: A/B component liquids | Foaming expansion sequence | Foam cross-section texture | Finished seals, insoles, and robot filling] [Insert video: Mixing → degassing → pouring → foaming → cured product test]

Product Features and Advantages

1. High Expansion, Low Cost — Foams to 2× naturally and up to 7× maximum, reducing silicone consumption per finished part.
2. Consistent Foam Quality — Even cell structure, stable expansion, minimal shrinkage, and reliable rebound for uniform parts.
3. Soft and Lightweight — Premium elastic hand-feel with no migration or shrinkage during service.
4. Safe and Inert — Non-toxic, non-corrosive, non-radioactive, and chemically stable; suitable for body silicone and skin-contact products.
5. Wide Temperature Durability — Retains flexibility from -65°C to 200°C with strong heat, cold, electrical insulation, and flame resistance.
6. Easy Processing — No thickness limits, simple 1:1 ratio, compatible with manual or automated dispensing.

How to Use — Step by Step

1. Stir Components A and B separately before use to redistribute settled materials evenly.
2. Mix A and B at a 1:1 weight ratio for 2–3 minutes until fully homogeneous.
3. Vacuum-degas the blend and use it promptly to avoid premature thickening.
4. Pour or inject into the mold and allow foaming and curing at room temperature or with gentle heat.

Application Scenarios

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

Buyer Benefits: Lower material costs, improved product consistency, and long-lasting sealing or cushioning performance that strengthens end-product quality.

Certifications and Compliance

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

Customization Options

Adjustable hardness and expansion ratio, custom colors, tuned viscosity for automated lines, enhanced flame-retardant grades, and food-contact or medical-grade formulations available on request.

Production Process

Raw material inspection → precise batching → vacuum mixing and degassing → lab testing (viscosity, expansion, hardness) → sealed packaging → final inspection before shipment. 48 production lines and 23+ years of experience ensure supply stability.

FAQ

Q: Can I get samples before placing a bulk order?
A: Yes. We always provide pre-production samples before mass production and perform final inspection before shipment.

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 flexible design for thin gaskets or thick cushion blocks.