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Chemlink Pro Pack Urethane Sealant 2 Gallon Kit Black F1000

Chemlink Pro Pack Urethane Sealant 2 Gallon Kit Black F1000

Sika-Sikaflex-1A-Colonial-White-Sausage

Sika Sikaflex 1A Colonial White 20oz Sausage 91005

Sika Sikaflex 1A Colonial White 10.1oz Cartridge 91013

Sikaflex 1A is a premium-grade, high-performance, polyurethane-based, non-sag elastomeric sealant. Sikaflex 1A can be used in green and damp concrete applications and is readily placeable at 40°F.

  • Fast tack-free and final cure times
  • Excellent resistance to aging, weathering. 
  • High elasticity - cures to a tough, durable, flexible consistency
$6.29
Availability: In stock ( 104 Available )
Orders over $300 Ship Free!
SKU
18963

Sika Sikaflex 1A – High-Performance Polyurethane Sealant

Sika Sikaflex 1A is a premium, moisture-cured, one-component polyurethane-based sealant designed for durable, flexible joint sealing in commercial and residential construction. It adheres to most construction materials without a primer and provides excellent resistance to aging, weathering, and movement. Sikaflex 1A is capable of accommodating ±35% joint movement and is certified for potable water applications. It is ideal for sealing expansion joints, windows, door frames, flashing, and other construction joints where a tough, long-lasting seal is required.


Key Features:

  • One-component, high-performance polyurethane sealant
  • Excellent adhesion to most construction materials without primer
  • Capable of ±35% joint movement for superior flexibility
  • Weather and UV resistant for long-term durability
  • Certified to NSF/ANSI Standard 61 for potable water applications
  • Fast tack-free and full cure times
  • Paintable with water, oil, and rubber-based paints
  • Resistant to jet fuel, making it ideal for transportation applications

Technical Specifications:

Property Value
Shelf Life 12 months (Cartridge/Sausage), 6 months (Pail/Drum)
Application Temperature 40°F to 100°F
Service Temperature Range -40°F to 170°F
Curing Time Tack-free in 3–6 hours, full cure in 4–7 days
Shore A Hardness 45 ±5 (ASTM C661)
Movement Capability ±35% (ASTM C719)
Tensile Strength 175 psi (ASTM D412)
Elongation at Break 550%
Adhesion in Peel (Concrete, Aluminum, Glass) 20 lb. with 0% adhesion loss

Frequently Asked Questions:

What surfaces can Sikaflex 1A adhere to?
Sikaflex 1A adheres to concrete, metal, wood, PVC, glass, stone, and most common construction materials without a primer.

Can Sikaflex 1A be used in submerged conditions?
Yes, it is suitable for canal and reservoir joints, but should be allowed to fully cure before immersion.

Is this sealant paintable?
Yes, Sikaflex 1A can be painted with water-, oil-, and rubber-based paints after full cure.

What colors are available for Sikaflex 1A?
It is available in white, colonial white, aluminum gray, limestone, black, dark bronze, capitol tan, stone, and medium bronze.

For the latest technical specifications and application guidelines, visit Sika USA.

More Information
BrandSika
ColorColonial White
Size10oz
ManufacturerSika