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Sika Sikaflex 2C SL Tint Base 1.5 Gallon 91028
Sikaflex 2c SL is a 2-component, premium-grade, polyurethane-based, elastomeric sealant intended for use in all working joints with a minimum depth of 1/4 inch.
- True self-leveling properties.
- Capable of ±50% joint movement.
- Chemical cure allows the sealant to be placed in non-moving joints exceeding 1/2 in. in depth.
$73.08
Availability:
In stock
( 34 Available )
SKU
18869
Sika Sikaflex-2C SL Tint Base – 1.5 Gallon
Sikaflex-2C SL Tint Base is a premium two-component, self-leveling polyurethane elastomeric sealant designed for horizontal joints. It provides high elasticity, long-term durability, and ±50% joint movement capability. The Tint Base is field-tintable with Sika Color-Pak, offering flexibility for a wide range of color requirements. Its chemical cure system allows reliable sealing performance in both traffic-bearing and submerged conditions.
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Key Features
- Two-component polyurethane elastomeric sealant.
- Self-leveling consistency for horizontal joints.
- Class 25 movement capability, ±50% joint width.
- Field-tintable with Sika Color-Pak for design flexibility.
- High elasticity with excellent cut and tear resistance.
- Adheres strongly to most construction substrates without primer.
- Durable and flexible under heavy traffic and submerged conditions.
- Meets ASTM C920 and Federal TT-S specifications.
Applications
- Horizontal working joints in concrete slabs, decks, and walkways.
- Industrial flooring and traffic-bearing applications.
- Submerged joints such as canals, reservoirs, and water features.
- Expansion and control joints exposed to chemicals and weathering.
- Projects requiring custom or tinted colors via Sika Color-Pak.
Technical Specifications
| Chemistry | Two-component polyurethane, self-leveling |
| Movement Capability | ±50% of joint width |
| Tensile Strength (ASTM D412) | 175 psi |
| Elongation at Break (ASTM D412) | 650% |
| Shore A Hardness (ASTM D2240) | 40 ± 5 |
| Tear Strength (ASTM D624) | 100 lbf/in (17.5 N/mm) |
| Service Temperature | -40°F to 170°F (-40°C to 77°C) |
| Tack-Free Time | 6–8 hours at 73°F (23°C) |
| Final Cure | 3 days |
| VOC Content | 75 g/L |
| Packaging | 1.5 gal (5.7 L) and 4.5 gal (17.1 L) units |
| Shelf Life | 1 year unopened |
| Compliance | ASTM C920, TT-S-00227E, TT-S-001543A, TT-S-00230C, CAN/CGSB 19.24-M90 |
Frequently Asked Questions
What is Sikaflex-2C SL Tint Base used for?
It is a self-leveling polyurethane sealant for horizontal joints that can be tinted using Sika Color-Pak.
Does it require primer?
Primer is generally not required, except in immersion conditions or on challenging substrates.
How long does it take to cure?
Tack-free in 6–8 hours and fully cured in 3 days at standard conditions.
Is it fuel resistant?
Yes. Sikaflex-2C SL Tint Base is resistant to jet fuel, water, diluted acids, and alkalines.
What packaging is available?
Available in 1.5 gal and 4.5 gal units.
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