Soudal Soudafoam Gap Filler Pack

Soudal Soudafoam Gap Filler is a professional-grade, high-yield polyurethane expanding foam engineered to effortlessly seal, fill, and insulate structural gaps, deep cracks, and architectural cavities. Developed by Soudal, a global leader in sealants and foam technologies, this high-performance formula expands uniformly to fill irregular voids, creating a permanent airtight and weatherproof barrier. It comes highly recommended for building contractors, window installers, and DIY enthusiasts looking to eliminate drafts, seal structural breaches, and dramatically optimize thermal and acoustic efficiency around residential and commercial properties.

Why Choose Soudal Soudafoam Gap Filler?

• High-Yield Volumetric Expansion: Formulated to expand rapidly upon contact with atmospheric moisture, making it highly economical for filling large, deep, or irregular cavities, wall breaches, and hidden voids behind plasterboard.

• Superior Thermal and Acoustic Insulation: Cures into a dense, uniform micro-cellular structure that creates a powerful barrier against heat loss and external environmental noise. It helps bridge thermal breaks around door and window installations, reducing energy bills and deadening sound transmission.

• Universal High-Strength Adhesion: Exhibits excellent immediate mechanical grab onto a vast spectrum of structural building substrates without requiring specialized primers. It forms a permanent bond with timber framing, brickwork, concrete blocks, stone masonry, metal conduits, and most construction plastics.

• Fast-Curing and Multi-Utility Workability: Engineered for rapid curing to keep job timelines moving forward. Once fully hardened, the foam can be easily cut, trimmed with a utility knife, sanded down, plastered over, or painted to achieve a flawless, flush finish.

• Indispensable Domestic and Trade Versatility: The ultimate structural filler for building envelopes and property renovations, optimized for:

  • Sealing perimeter gaps around window liners, external door casings, and loft hatches

  • Filling deep voids in brickwork, partition walls, roof joist connections, and fascia boards

  • Insulating around plumbing pipework runs, electrical junction boxes, and HVAC duct penetrations

  • Soundproofing wall cavities, under-floor spaces, and internal utility shafts

Key Features

• Expanding PU foam gap filler

• Ideal for sealing gaps, cracks, and cavities

• Strong adhesion to most surfaces (wood, brick, stone, metal, plastics)

• Provides thermal and acoustic insulation

• Easy to apply and quick curing

Technical Specifications

• Brand: Soudal

• Product Name: Soudafoam Gap Filler

• Product Type: Polyurethane Expanding Foam

• Cure System: Moisture-Curing Polyurethane Matrix

• Insulation Properties: High-Performance Thermal & Acoustic Rating

• Consistency: Stable Thixotropic Expansion (Non-Sag)

• Substrate Compatibility: Wood, Brick, Concrete, Stone, Plaster, Metal, PVC, and Most Plastics (Not suitable for PE, PP, or PTFE)

Buy online today for fast nationwide delivery across Ireland, or select Click & Collect to pick up your expanding foams and building adhesives directly from our Limerick showroom.