Description
ARBOFLEX® PU Sealant – High-Performance Polyurethane Mastic for Joints & Trim Sealing
ARBOFLEX® PU Sealant is a one-part polyurethane-based mastic specially developed for use with the ARBOFLEX waterproofing system. It cures upon exposure to moisture vapour to form a tough, flexible seal that ensures long-lasting, weather-resistant performance.
Perfect for sealing board joints, edge trims, floor joints, and expansion gaps, this sealant delivers strong adhesion to most construction materials, including concrete, brickwork, and metal—though it is not suitable for use on natural stone.
🔧 Key Features:
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✅ Compatible with ARBOFLEX Systems – Ideal for use with PU membranes
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✅ Flexible & Durable – Cures to form a tough yet elastic seal
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✅ Strong Adhesion – Bonds to concrete, brickwork, metal, and more
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✅ Multi-Use – Perfect for floor joints, expansion joints, and cladding
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✅ Moisture-Curing Formula – No mixing or activator required
📌 Applications:
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Sealing substrate board joints/gaps
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Securing edge trims in liquid roofing systems
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Expansion joints in floors and structural panels
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General waterproof detailing in conjunction with ARBOFLEX PU
🛠 Joint Preparation & Use:
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Surfaces must be clean, dry, and contamination-free
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Degrease with appropriate Arbo Cleaner
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Use joint filler (e.g., closed-cell foam) where required
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Primers may be necessary for some substrates—consult technical guidance
📏 Joint Size Recommendations:
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Width: Min 6mm / Max 25mm (single application)
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Depth:
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Min 10mm on porous substrates
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Min 6mm on non-porous substrates
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Max 20mm depth
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📦 Product Information:
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Product Name: ARBOFLEX® PU Sealant
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SKU: AF-PU-Sealant-300
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Volume: 300ml cartridge
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Colour: Grey
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Stock Type: Warehouse Fulfilled
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Brand: Arboflex
💡 Ideal For:
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Liquid waterproofing preparation and detailing
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Use with ARBOFLEX PU on flat roofs, balconies, and wall junctions
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Expansion and movement joint sealing in high-flex applications
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