Description
Sika 1A Polyurethane Sealant is a moisture-cured, one-component, high-performance sealant ideal for a wide variety of construction applications. Packaged in an easy-to-use 10.1 oz cartridge, Sika 1A is designed for vertical and horizontal use and provides a permanently flexible, durable bond to a wide range of construction materials.
This Sika 1A polyurethane sealant delivers excellent adhesion without the need for a primer, bonding effectively to concrete, brick, wood, metal, glass, and plastics. Once cured, it remains elastic and offers superior resistance to aging, weathering, and UV rays. It is paintable, non-sagging, and will not crack or shrink over time.
Common Applications:
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One-component, moisture-curing polyurethane formula
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Excellent flexibility and joint movement capability
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Sealing joints in concrete and masonry
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Flashing around windows, doors, and vents
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Roofing and siding seams
- Expansion and control joints
Product Features:
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One-part moisture-cured polyurethane
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Joint movement capability of ±25%
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Paintable with water-based paints
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USDA approved for use in meat and poultry plants
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Suitable for both interior and exterior use
Whether you’re a contractor or DIY builder, Sikaflex 1A polyurethane sealant is a go-to solution for durable, weatherproof sealing. This product complies with federal specifications and is trusted industry-wide for its reliability and performance.
📄 Download Sika 1A Technical Data Sheet (PDF)
📄 Download Sika 1A Safety Data Sheet (PDF)
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