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Home > Sealants and Caulks > Polyurethanes > PSI-901
PSI-901 One-part Urethane Sealant
PSI-901 is the polyurethane of choice for dynamic movement. Its unique oxygen-cure is not affected by atmospheric moisture, making it ideal for applications in very dry and/or very humid climates. It won't "blow" or bubble in humid conditions or on damp surfaces.
PSI-901 bonds to concrete, masonry, ceramics, glass, wood, metal, PVC and many plastics and cures to a flexible rubber with extraordinary adhesion and cohesion. PSI-901 is not intended for structural applications.
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Non-yellowing. |
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Will not bubble on contact with moisture. |
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Good weather resistance. |
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Resistant to mild chemicals and solvents. |
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Will not "cold slip". |
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Paintable. |
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No isocyanates; low VOC. |
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Meets or exceeds Federal Spec TT-S-00230C, ASTM C920 and CAN/CGSB 19.13-M87 (see data sheet for details). |
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| Typical applications: |
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Exterior expansion and control joints in pre-cast, tilt-up and poured-in-place concrete.
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Perimeter caulk doors, windows, panels. bedding, steps and risers. |
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Curtain walls. |
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Glazing. |
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