
Description
Bostik Pro PU91 Construction Sealant – Black (300ml)
Strength, flexibility, and reliability the Bostik Pro PU91 Construction Sealant is your professional solution for sealing high-movement construction joints. Specially formulated with polyurethane technology, this sealant provides long-term durability in heavy-duty applications like warehouse floors and high-rise buildings.
With a 25% movement capability and high modulus performance, PU91 adapts to structural shifts without cracking, while its primer-free, bubble-free application ensures a smooth and efficient installation—indoors or outdoors.
Features & Benefits
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Handles up to 25% joint movement
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Professional-grade polyurethane formulation
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High modulus for tough construction environments
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Bubble-free finish for a clean, professional look
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No primer required on most common substrates
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Resistant to environmental stress and weathering
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Interior and exterior use
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Ideal for warehouse floors, car parks, gallery slabs, and more
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Colour: Black
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Size: 300ml cartridge
Common Applications
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Construction joints in concrete floors
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Sealing between precast panels or expansion joints
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Joints in multi-storey car parks or industrial flooring
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Movement joints in high-rise and commercial buildings
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External façades and pavement joints
FAQs
Q1: Can Bostik PU91 be used outdoors?
A: Yes, it is fully suitable for exterior use and is resistant to weather and environmental stress.
Q2: Do I need to apply a primer before using this sealant?
A: No primer is required for most common construction materials, making application quicker and easier.