The FirePro Plus Firestop Compound is a gypsum-based mortar designed to provide a fire-rated, load-bearing seal around service penetrations in fire-rated walls and floors.
Offering up to 6 hours fire protection (tested to BS 476: Part 22), it also delivers excellent acoustic insulation and a reliable smoke seal. Once installed, it is maintenance free and unaffected by humidity.
Suitable for sealing around cable trays, trunking, ducting, and pipework (plastic pipes must be protected with Firestop Collars or Intumescent Pipe Wraps), the compound can be trowelled or poured into place. It sets within 30–45 minutes and can take foot traffic after approximately 72 hours.
Key Benefits:
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Up to 6 hours fire protection – BS 476: Part 22 tested
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Provides a smoke seal and acoustic insulation
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Load-bearing once cured – suitable for high-traffic areas
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Easy to mix and apply – trowel or pour
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Works in walls and floors
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Unaffected by humidity
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Maintenance free, no smoke emission
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Suitable for most types of service penetrations
Application Guide:
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Floors: Fit a 50mm permanent shutter panel between services and floor edges, trowel 25mm compound layer, allow to harden, then pour to required depth.
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Walls: Apply as a stiff mix for small openings or cast into blocks for larger penetrations.
Coverage (22kg Bags):
Approximate, excluding space taken by services
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75mm thickness – 3.15 bags/m² (1–2hr rating)
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100mm thickness – 4.2 bags/m² (3–6hr rating)
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150mm thickness – 6.3 bags/m²