Two-Part Liquid Foaming Silicone for Durable Seals and Cushions

Product Overview

Silicone Foam Rubber is a liquid, two-component Addition Curing Silicone that foams chemically as soon as the A and B parts are mixed. It cures into a soft, ultra-lightweight, and non-toxic foam that can be produced in any thickness with easy handling. Backed by decades of RTV-2 silicone rubber and liquid silicone manufacturing, HONG YE SILICONE delivers Foamed Silicone with stable batch quality to industrial buyers worldwide.

Technical Specifications

• Product Form: Two-component liquid, platinum-cured
• Mix Ratio: 1:1 (A:B by weight)
• Expansion Range: 2× standard; up to 7× maximum
• Continuous Service Temperature: -65°C to +200°C
• Physical Traits: Uniform cells, low linear shrinkage, excellent elasticity, flame retardant
• Compliance: ISO9001, UL, CE
• Packaging: A 25/250/200 kg; B 20/25/200 kg per drum
• Storage Conditions: Sealed, cool, and dry; 12-month shelf life

Product Images and Videos

[Insert: Raw A/B components | Foaming expansion sequence | Cutaway view of cured Silicone Sponge | Real-world seals, cushions, and robot filling] [Insert video: Production-line demonstration from mixing to cured foam part]

Product Features and Advantages

1. Maximum Material Savings — With up to 7× volume expansion, you produce more parts from less silicone, directly improving your gross margin.
2. Uniform Cell Structure — Even, stable foaming with low shrinkage and reliable rebound gives every batch consistent performance.
3. Lightweight and Resilient — Soft elastic touch with no migration, collapse, or aging shrinkage in long service.
4. Genuinely Eco-Friendly — Non-toxic, non-corrosive, non-radioactive, and chemically inert — a safe choice for body silicone and sensitive applications.
5. Proven Wide-Temperature Durability — Long-term flexibility from -65°C to 200°C, plus strong heat, cold, insulation, and flame resistance.
6. Simplified Operations — 1:1 mixing and no thickness limits make it ideal for both small-batch prototyping and mass production.

How to Use — Step by Step

1. Stir Component A and Component B separately to redistribute any settled ingredients.
2. Weigh and combine A and B at a 1:1 ratio, mixing for 2–3 minutes until fully homogeneous.
3. Degas the mixed material in a vacuum chamber and use it promptly to prevent gelling that disrupts production.
4. Pour or pump into the mold or cavity and allow foaming and curing at room temperature or with mild heat.

Application Scenarios

• Industrial Sealing: Gaskets, seals, sealing strips, foam panels, silicone foam hose, and printer roller sponges.
• Automotive Comfort: Headrests, gear shift covers, seat cushions, and interior padding.
• Home & Lifestyle: Insoles, sofa cushions, mattress layers, and padded accessories.
• Health & Care: Bra inserts, shoulder pads, maternity back supports, children's pillows, and senior fitness equipment.
• Model Making & Filling: Filler for silicone robots, lifecasting figures, and display props; complements Mold Making Silicone workflows.

Buyer Benefits: Cost reduction through high expansion, fewer rejects through uniform foaming, and dependable long-term sealing performance that lowers after-sales risk.

Certifications and Compliance

Our plant operates under ISO9001 quality management and holds UL and CE certifications. These credentials support easier qualification by overseas buyers and smoother market access in the EU, North America, and other regulated regions.

Customization Options

Available custom options include adjustable hardness and expansion ratio, color matching, tuned viscosity for automated dispensing, enhanced flame-retardant grades, and food-contact or medical-grade formulations per your specification.

Production Process

Incoming material QC → precise batching → vacuum mixing and degassing → performance testing (viscosity, expansion, hardness) → drum packaging → final inspection before shipment. Our 48 production lines and 23+ years of expertise guarantee supply stability and quality consistency.

FAQ

Q: Is pre-production sampling available? A: Yes. We always provide pre-production samples before mass production, and we perform final inspection before shipment to guarantee quality.

Q: How do I avoid bubbles in the finished foam? A: Thorough vacuum degassing after mixing is essential. Also ensure both components are well stirred and that the working environment is free of contaminants listed in our handling guide.

Q: Can the foam color be customized? A: Yes. Color matching is available, and our standard grades can be pigmented to meet your branding or application needs.

Q: What is the shelf life, and how should the product be kept? A: Shelf life is 12 months. Store in sealed containers in a cool, dry place away from sunlight and high temperatures; the product ships as non-hazardous goods.

Q: Does the product work for very thin or very thick parts? A: Yes. Liquid Silicone Foam is not limited by part thickness, allowing flexible design for both thin gaskets and thick cushion blocks.