Discover why silicone foam is superior to PU foam: extreme temperature resistance (-60°C to +200°C), permanent elasticity, UV and weather resistance, and fire-safe options. Perfect for electronics, batteries, cushions, and industrial applications.
When choosing foam material for your project, you often face the choice: silicone foam or polyurethane (PU) foam? While PU foam is a commonly used material, silicone foam offers significant advantages that make it the superior choice for professional and demanding applications.
The biggest difference between silicone foam and PU foam is their durability. While PU foam crumbles, hardens, or loses its elasticity over time, silicone foam retains its properties for years. This is because silicone is inherently resistant to UV radiation, ozone, and weather conditions.
Practical advantage: Products made with silicone foam do not need to be replaced regularly, which saves money in the long run and results in less waste.
Silicone foam remains functional in extreme temperatures, from -60°C to +200°C (depending on the product line). PU foam, on the other hand, loses its properties at temperatures above 80-100°C and becomes brittle at low temperatures.
Applications: This makes silicone foam indispensable for electronics, automotive applications, battery gaskets and industrial insulation where temperature fluctuations are normal.
Where PU foam is sensitive to moisture, oils and many chemicals, silicone foam offers excellent resistance to:
This means that silicone foam will not degrade in challenging environments where PU foam would fail.
Silicone foam returns to its original shape after compression. PU foam loses this characteristic over time and remains dented or deformed. The low compression set of silicone foam ensures that gaskets, cushions, and damping materials continue to perform their function.
For applications where fire safety is crucial, silicone foam offers a significant advantage. Our silicone foam collection includes flame-retardant versions with UL94-V0 and UL94-HB certifications, ideal for electronics and battery applications. PU foam is naturally flammable and often requires chemical additives for flame retardancy.
We offer a comprehensive range of 2-component platinum silicone foam products, each developed for specific applications:
Perfect for seals, gaskets and protection of electronics and batteries:
Ideal for cushioning, comfort and absorption:
The combination of thermal stability, flame retardancy and durability makes silicone foam the first choice for:
For high-quality pillow fillings, mattresses and comfort products, silicone foam offers:
Our 2-component silicone foam products are easy to use:
Pro tip: Work in a closed mold for a more uniform foam structure and better foaming effect. Provide adequate ventilation for delicate parts.
Choosing silicone foam over PU foam is an investment in quality and durability. While the initial cost may be higher, the benefits far outweigh the potential:
Browse our complete silicone foam collection and choose the one that best suits your application. Do you have questions about which type is best suited for your project, or would you like advice on processing and expansion? Feel free to contact us for personalized advice.
Invest in durability, performance and reliability – choose silicone foam.
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