Bostik Pro FP403 Fireseal Hybrid Sealant 290ml Grey

• +/- 25% flexibility
• Fire resistant (4 hours)
• High modulus
• High sound insulation
• UV and weather resistant
• Interior and exterior use



BOSTIK PRO FP403 FIRESEAL POLYMER SEALANT is a one-component, fire resistant hybrid sealant. This white fireproof sealant is suitable for fire resistant sealing of linear joints for up to 4 hours and offers up to 25% movement capability.

Fire rated to EN 1366-4, the high modulus FP403 FIRESEAL can be applied in both vertical and horizontal joints and also offers excellent sound insulation. An MS polymer sealant, it is suitable for sealing walls, floors, ceilings or metal frames, and is also certified for all metal stud (gypsum) connections. It's GEV EMICODE EC1 PLUS certified for very low emissions, is UV and weather resistant, and is supplied in a post-consumer recycled (PCR) cartridge.


• GEV-EMICODE EC1 PLUS certified - very low emissions
• Fire rated to EN 1366-4: Up to 4 hours
• EN 13501-1: Class B-s1,d0
• EN 1634-3: Sa and Class S200
• Post-consumer recycled (PCR) cartridge