SP025 Fire Membrane Adhesive is chemically neutral and low odour during and after curing. When tested to EN13501-1 it achieves a Class B-s1, d0 fire performance in accordance with EN 13501-1, it has also been tested as part of a system with illbruck ME007 FR Window & Door Sealing Membrane + and ME010 FR Window & Door Sealing Membranes, where it achieves a Class B fire performance. On full curing, the product is permanently elastic but with a high mechanical strength.