Adhesives Technology Crackbond CSR 2 Gallon B2G-CSR

Two-component, polyurethane hybrid specially designed with an ultra-low viscosity providing a quick repair of hairline cracks and spalls in concrete. Perfect for use when minimal downtime is required and rapid return-to-service is needed

Fast Curing
Reaches 4,500 PSI in 1 Hour
Open to traffic in under 60 minutes at 77 degrees

$339.59

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SKU

17899

Details

CRACKBOND CSR – 2 Gallon Kit (B2G-CSR)

CRACKBOND CSR is a rapid cure, ultra-low viscosity polyurethane hybrid formulated to quickly repair hairline cracks and spalls in concrete. It penetrates deeply and reaches high early strength so repaired areas can return to service fast. With a 1:1 mix ratio and a wide application temperature range, CSR is ideal for interior and exterior slabs where downtime must be minimized. Most repairs can be opened to traffic in less than 60 minutes at 77°F. :contentReference[oaicite:1]{index=1}

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Key Features

Rapid cure with traffic-ready time in less than 60 minutes at 77°F.
Ultra-low viscosity for deep penetration and strong bond.
1:1 mix ratio by volume.
Application temperature range from 0°F to 110°F.
May be mixed with kiln-dried sand to form repair mortars.
Color match capability using powder pigments.

Applications

Quick repair of interior and exterior hairline cracks in concrete slabs.
Spall repair using neat material or as a mortar with sand.
Industrial floors and high-traffic areas requiring minimal downtime.
Parking structures and concrete bridge repairs.
Control joint repair prior to joint filler as required.

Technical Specifications

Mix Ratio	1:1 by volume.
Compressive Strength (1 hr, neat)	4,629 psi (31.9 MPa). :contentReference[oaicite:2]{index=2}
Compressive Strength (24 hr, neat)	5,102 psi (35.2 MPa). :contentReference[oaicite:3]{index=3}
Tensile Strength (7 day)	3,485 psi (24.0 MPa). :contentReference[oaicite:4]{index=4}
Bond Strength (2 day, ASTM C882)	1,894 psi. :contentReference[oaicite:5]{index=5}
Working Time at 75°F	2 minutes. :contentReference[oaicite:6]{index=6}
Tack-Free Time	Less than 10 minutes. :contentReference[oaicite:7]{index=7}
Shore D Hardness	70. :contentReference[oaicite:8]{index=8}
Color (Cured)	Gray. :contentReference[oaicite:9]{index=9}
Packaging	2 Gallon kit. :contentReference[oaicite:10]{index=10}

Frequently Asked Questions

How soon can a repaired area be opened to traffic?
Most repairs can be opened to traffic in less than 60 minutes at 77°F. :contentReference[oaicite:11]{index=11}

What temperatures can CSR be applied in?
Substrate and ambient temperature range is 0°F to 110°F. Keep components above 30°F for proper flow. :contentReference[oaicite:12]{index=12}

Does CSR foam during cure?
CSR is highly sensitive to moisture and may foam if exposed. Ensure concrete is completely dry before application. :contentReference[oaicite:13]{index=13}

Is CSR structural?
CSR provides high early compressive strength and a strong bond for static cracks and spalls. It is not intended for cracks subject to movement. :contentReference[oaicite:14]{index=14}

Can the repair be color matched?
Yes. CSR may be used with powder pigments, and cured repairs can be coated or painted to meet appearance goals. :contentReference[oaicite:15]{index=15}

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