Epoxy Bonding Agents - Sikadur®-31 SBA Normal Set

High-modulus, high-strength, moisture tolerant, epoxy paste adhesive

Sikadur®-31 SBA Normal Set is a unique high-modulus 2- component, moisture-tolerant, solvent-free, epoxy resin system available in three application temperature ranges. A unique high-modulus, structural adhesive for bonding hardened concrete to hardened concrete for segmental bridge construction. The mixed material has the consistency of paste and is a concrete gray color. It conforms to the current ASTM C-881, Type VI requirements, and ASBI guidelines.

• Moisture tolerant before, during and after cure
• High-modulus, high-strength, structural paste adhesive
• Range of curing times to meet assembly and strength gain requirements
• Easy to apply, non-sag paste for vertical applications
• Excellent adhesion to concrete, steel and most construction materials
• Convenient easy to mix ratios. A:B=2:1 by volume
• Color-coded components to ensure proper mixing control

Usage

• Structural bonding of post-tensioned precast concrete bridge segments
• Sealing joints between concrete segments
• For use in segment-by-segment erection
• Supplied in three temperature grades to meet project requirements. (For cold weather conditions, refer to separate technical data sheet on Sikadur® 31, SBA [20°-45°F].)

Advantages

• Moisture tolerant before, during and after cure
• High-modulus, high-strength, structural paste adhesive
• Range of curing times to meet assembly and strength gain requirements
• Easy to apply, non-sag paste for vertical applications
• Excellent adhesion to concrete, steel and most construction materials
• Convenient easy to mix ratios. A:B=2:1 by volume
• Color-coded components to ensure proper mixing control

Packaging

3 gal. (11 L) units

Color

Concrete gray

Product Details

Product Information

24 months in original, unopened containers

Store dry at 40-95 °F (4-35 °C).

Condition material to 70-75 °F (21-24 °C) before using.

Non-sag paste

Application

Consumption

Approximately 12 ft²/gal. or 36 ft²/3 gal. unit.

Application Steps

Surface must be clean and sound. It may be dry or damp, but free of standing water and frost. Remove dust, laitance, grease, curing compounds, impregnations, waxes, foreign particles, disintegrated materials and any other contaminants.

Pre-mix each component. Wear chemical resistant gloves and safety goggles. Mix all of Part ‘A’ with all of Part ‘B’. Mix thoroughly for a minimum of 3 minutes with a low-speed (400-600 rpm) drill fitted with a mixing Sika paddle until a uniform gray color is achieved. Scrape down the sides of the mixing pail and ensure there are no streaks of unmixed epoxy before applying. Mix only that quantity which can be used within its pot life.

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