Our Fire-Retardant B1 Foam is a high-performance, single-component polyurethane foam with excellent fire-retardant properties. It is designed to meet the stringent requirements of DIN 4102 Part 1, achieving up to 240 minutes of fire resistance. Tested according to BS 476 Part 22, this foam ensures superior fire protection for your projects. It sets quickly and can be cut, sawn, or plastered over within one hour, making it ideal for time-sensitive tasks. Once cured, the foam forms a rigid structure that can be shaped, sanded, and trimmed.