Sikadur 51 SL is a two compnent, self-leveling, 100% solids, flexible, control joint resin sealer and adhesive used to fill horizontal, non-moving, saw cut construction control joints and cracks.
Sika Sikadur 51 SL is a two-component, 100% solids, self-leveling epoxy resin designed for sealing horizontal, non-moving control joints and cracks. This high-performance, flexible epoxy prevents joint edge deterioration while delivering exceptional durability, impact resistance, and adhesion. With moisture tolerance and shock absorbency, Sikadur 51 SL is ideal for demanding applications, including industrial flooring, concrete joints, and tamper-resistant sealing. Conforming to ACI 302.1R joint material standards, this epoxy sealer is a reliable solution for long-term joint protection.
Property | Value |
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Packaging | 4-gallon unit (Component A + B) |
Color | Concrete gray |
Shelf Life | 2 years in original, unopened container |
Shore D Hardness (ASTM D2240) | 50–55 at 28 days |
Tensile Strength (ASTM D638) | 570 psi (3.9 MPa) |
Elongation at Break (ASTM D638) | 90% |
Mixing Ratio | 1:1 by volume (Component A+B) |
Pot Life | 20-25 minutes (1-gallon mix) |
Cure Time (Tack-Free) | 7–8 hours |
Can Sikadur 51 SL be used in moving joints?
No, Sikadur 51 SL is designed for non-moving control joints and is not intended for expansion joints.
How should Sikadur 51 SL be applied?
It can be poured directly into prepared joints or applied with low-pressure extrusion equipment.
Brand | Sika |
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Size | 4 Gallon |
Manufacturer | Sika |