Sika Sikaflex 1C SL 10.1oz Limestone 90944

Sika Sikaflex 1C SL is a single component, self-leveling, premium-grade polyurethane sealant with an accelerated curing capacity. 1C SL is used to seal horizontal expansion joints in concrete and cementitious slabs.

Can be applied to green concrete 24 hours after pour
Extremely elastic
Durable - resists aging and weathering

$8.56

Availability: In stock ( 124 Available )

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SKU

17733

Sika Sikaflex 1c SL – Self-Leveling Polyurethane Sealant

Sika Sikaflex 1c SL is a high-performance, one-component, self-leveling polyurethane sealant designed for horizontal expansion joints. With its accelerated curing capability, Sikaflex 1c SL delivers superior adhesion and flexibility for concrete and cementitious substrates. It meets Federal Specification TT-S-00230C, Type I, Class A, and ASTM C-920, Type S, Grade P, Class 25. Ideal for sealing joints in sidewalks, driveways, parking decks, and industrial floors, this sealant offers long-lasting durability, excellent weather resistance, and the ability to bond to damp and green concrete.

Key Features:

1-component, ready-to-use polyurethane formula
Self-leveling, pourable consistency for easy application
Accelerated curing for faster project completion
Excellent adhesion to damp and green concrete
Highly elastic with superior crack-bridging capabilities
Resists aging, weathering, and UV exposure
Jet fuel-resistant and suitable for water immersion applications

Applications:

Horizontal expansion joints in concrete and cementitious slabs
Sidewalks, driveways, and parking structures
Industrial floors, warehouses, and factories
Balconies, terraces, and plazas
Water treatment plants and canals

Technical Specifications:

Property	Value
Packaging	10.1 fl. oz. cartridge (24/case), 29 fl. oz. cartridge (12/case), 5-gallon pail, 50-gallon drum
Color	Limestone
Shelf Life	1 year (unopened, stored at 40–95 °F)
VOC Content	40 g/L
Shore A Hardness	40 ± 5 (ASTM D-2240)
Tensile Strength	150 psi (ASTM D-412)
Elongation at Break	320% (ASTM D-412)
Movement Capability	±25% (ASTM C-719)

Frequently Asked Questions:

Can Sikaflex 1c SL be applied to wet concrete?
Yes, it can be applied to damp concrete as long as standing water is removed and the surface has dried for at least 60 minutes.

How long does it take for Sikaflex 1c SL to cure?
Tack-free time is 1–2 hours, with full cure achieved in 3–5 days.

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