
Description
Bostik Pro Sealants FP403 Hybrid Fire-Resistant Sealant
Introducing the Bostik Pro Sealants FP403 Hybrid — the ultimate solution for fire-resistant sealing. Designed for both professionals and DIY enthusiasts, this high-performance sealant delivers exceptional durability, safety, and flexibility across a variety of construction applications.
Whether sealing walls, floors, ceilings, or metal frames, the Bostik FP403 is engineered to meet the most demanding construction requirements. It offers up to 25% movement capability to accommodate structural shifts, all while maintaining a secure, reliable seal. Certified fire-rated for up to 4 hours, and resistant to UV and weather conditions, this sealant performs brilliantly in both indoor and outdoor environments.
Features & Benefits
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Suitable for sealing walls, floors, ceilings, and metal frames
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Certified for all metal stud (gypsum) connections
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Provides 25% flexibility to accommodate movement
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High modulus for enhanced performance and durability
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Excellent sound insulation properties
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Ideal for both indoor and outdoor use
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UV and weather resistant for long-lasting protection
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Fire rated to EN 1366-4 for up to 4 hours
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Fire Class EN 13501-1 Class B-s1,d0
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Smoke leakage tested: EN 1634-3 Sa and Class S200
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Eco-friendly packaging made from post-consumer recycled (PCR) cartridge material
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GEV-EMICODE EC1 PLUS certified for very low emissions
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Size: 290ml cartridge
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Colour: Grey
Applications
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Sealing construction joints in walls, floors, and ceilings
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Fire-resistant sealing of metal frames and stud walls
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Soundproofing gaps in structural elements
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Indoor and outdoor fire protection in commercial and residential buildings
FAQs
Q1: How flexible is the Bostik FP403 Hybrid sealant?
A1: The sealant offers up to 25% movement capability, allowing it to flex with building movements without cracking or losing adhesion.
Q2: Is the FP403 suitable for outdoor use?
A2: Yes, the sealant is UV and weather-resistant, making it perfect for both interior and exterior applications.