Sikadur 31 Hi-Mod Gel, is a 2-component, 100 % solids, solvent-free, moisture-tolerant, high-modulus, high strength, structural epoxy paste adhesive. Excellent adhesion to concrete, masonry, metals, wood, and most structural materials.
Sikadur 31 Hi-Mod Gel is a two-component, 100% solids, high-strength structural epoxy adhesive designed for bonding concrete, masonry, metal, and wood. With its non-sag, paste consistency, it’s ideal for vertical and overhead applications. The fast-setting formulation is moisture tolerant and offers excellent adhesion even in damp conditions. Conforming to ASTM C-881 and AASHTO M-235, it’s well-suited for structural repairs, crack sealing, anchor grouting, and pick-proof sealing in correctional settings. This product provides high compressive strength, superior bonding to multiple substrates, and a 1:1 mix ratio for ease of use in field conditions.
Property | Value |
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Compressive Strength (7 day) | Up to 16,000 psi |
Flexural Strength | 6,100 psi |
Tensile Strength | 3,300 psi |
Elongation at Break | 0.9% |
Bond Strength to Concrete (dry) | 2,200 psi |
Bond Strength to Concrete (moist) | 2,900 psi |
Shear Strength | 4,600 psi |
Heat Deflection Temp | 135°F (57°C) |
Water Absorption (24 hr) | 0.07% |
Mix Ratio | 1:1 by volume |
Pot Life | 60 minutes at 73°F |
Tack-Free Time | 1.5–2.5 hours at 30 mils |
Color | Concrete Gray |
Packaging | 3 Gallon Unit |
Can this product be used on damp concrete?
Yes. Sikadur 31 Hi-Mod Gel is moisture tolerant and can bond to damp surfaces.
Is it suitable for overhead applications?
Yes. Its paste consistency makes it ideal for vertical and overhead work.
Does it meet ASTM C-881?
Yes. It conforms to ASTM C-881 Types I, II, IV, Grade 3, Classes B & C.
Brand | Sika |
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Size | 3 Gallon |
Manufacturer | Sika |