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Low processing costs and the use of up to 100% recycled materials make non-crosslinked physically foamed PE/PP ideal for various applications. These include noise insulation for inter floor ceilings, thermal insulation in elevated temperatures, insulation for aluminium window profiles, foam food trays, and heat and sound insulation in the automotive and aviation industries.
In November 2023, IFC and a partner evaluated a new product made from partially cross-linked physically foamed polyethylene, using carbon dioxide (CO2) as a blowing agent. This foam, created with a special grafted LDPE and a cross-linked catalyst, can withstand temperatures up to 95-100°C. It offers a partial replacement for traditional chemically cross-linked foamed PE, opening new market opportunities and supporting a “closed loop” economy.