Foamed Silicone for EV Battery Protection

Product Overview

F664 Silicone Foam Rubber is a premium liquid silicone engineered for parts that must stay light, quiet and safe in demanding vehicle and energy environments. As a specialist manufacturer of Mold Making Silicone, RTV-2 silicone and Silicone raw materials, we designed the formula around automotive-grade requirements: consistent cushioning, low weight, flame resistance, electrical insulation and dimensional stability over long service. Compared with ordinary foams, this platinum-cured material resists compression set and migration, keeps its profile under vibration and temperature swings, and cures at any thickness without special tooling — helping procurement partners cut weight, simplify assembly and meet stricter safety standards.

Key Features & Advantages

1. Lightweight Cushioning: Foams from 2x up to 7x volume, delivering soft support with minimal added weight — a practical way to reduce vehicle mass and energy consumption.
2. Stable, Uniform Structure: Even micropores, low linear shrinkage and reliable rebound keep seats and pads consistent in feel and profile, with no migration or post-cure shrinkage.
3. Flame-Retardant and Insulating: Electrically insulating and flame-retardant, with long-term flexibility from -65℃ to 200℃ — suited to battery and control-unit environments.
4. Safe and Durable: Non-toxic, non-corrosive, non-radioactive and chemically inert; resists heat, cold and long-term compression.
5. Process-Friendly and OEM-Ready: Simple 1:1 A/B mixing, standard stirring and vacuum degassing; hardness, density and packaging adjustable, with Addition Curing Silicone chemistry for reproducible batches.

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 automotive seat cushions, headrests, gear covers, door padding and interior soft parts; for battery pack cell cushioning, thermal management padding and electronic control unit and charging port sealing in EVs; and for insoles, sofa and mattress cushions, chest and shoulder pads, children's pillows and soft filling for silicone robots and dolls. It helps procurement partners make lighter, safer and more comfortable parts, reduce material waste and improve 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 Silicone Foam Rubber meets international standards: ISO 9001 (strict quality control), UL and CE Certification, satisfying global automotive, EV and foam industry requirements and trusted by vehicle part suppliers and procurement partners worldwide.

Customization Options

We provide automotive-grade customization: adjust hardness, density and packaging to your interior or battery design; choose expansion from 2x to 7x; tune cell structure, rebound and flame performance for seats, pads or sealing parts; 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 density and softness your part requires.

Q: What is the service temperature?

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

Q: Is it suitable for EV battery applications?

A: Yes — electrically insulating and flame-retardant, with stable performance for cell cushioning and control unit sealing.

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.