Sika Sikaflex 1A White 10oz 91017

Sikaflex 1A is a premium non-sag polyurethane sealant that is excellent for many construction adhesive applications including windows, door frames, flashing, and more. 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 ( 1668 Available )

SKU

17729

Sika Sikaflex-1A – White – 10oz Cartridge

Sikaflex-1A is a one-component, moisture-cured polyurethane sealant used for vertical and horizontal joints. It's known for its excellent adhesion, flexibility, and durability, even in challenging environments. Sikaflex-1A can be applied to green or damp concrete and resists weathering, aging, and UV exposure. It accommodates ±35% joint movement, making it a versatile option for sealing applications in construction and repair projects.

Key Features:

One-component, polyurethane formula with no mixing required
Applies to green (24 hours) and damp (1 hour) concrete
±35% joint movement capability
Non-sag consistency for vertical and overhead use
Adheres to most common construction materials without primer
Jet fuel resistant; suitable for use in water immersion settings
NSF/ANSI/CAN 61 certified for potable water applications
Meets ASTM C920, TT-S-00230C, CAN/CGSB 19.13-M87 standards

Technical Specifications:

Property	Value
Movement Capability	±35%
Shore A Hardness	45 ± 5 (ASTM C661)
Elongation at Break	550% (ASTM D412)
Tear Strength	55 lb/in (ASTM D624)
Tack-Free Time	3 to 6 hours
Full Cure Time	4 to 7 days
Service Temperature Range	−40°F to +170°F
Adhesion (Concrete, Aluminum, Glass)	20 lbs with 0% adhesion loss

Frequently Asked Questions:

Where can Sikaflex-1A be applied?
It's used for windows, doors, flashing, reglets, roofing details, and submerged applications like reservoirs or canals.

Does Sikaflex-1A require a primer?
Most applications do not require a primer. Primer may be needed in water immersion or porous substrate conditions. Testing is recommended.

Can this be applied in wet or green concrete conditions?
Yes. It can be applied to green concrete after 24 hours and damp concrete after waiting 60 minutes post water removal.

What is the application temperature range?
Apply between 40°F and 100°F. Cold materials should be brought to room temperature before use for best results.

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