CCS Slump Pumping IR

CCS Slump Pumping IR is a two-component, low-viscosity structural epoxy adhesive specifically formulated for pressure injection grouting. This material is known for its “slump pumping” behavior—where injected resin gels quickly, adheres to crack walls, and allows for effective reinjection, ultimately sealing cracks over multiple applications. It is solvent-free, contains no VOCs, and cures to a tough, resilient polymer.

 This product is primarily used for the structural repair of cracks and delaminations in concrete, masonry, stone, wood, and steel substrates. It is suitable for vertical and on-grade surfaces where backside sealing is not possible. It is also applicable for grouting load-bearing voids under heavy equipment.

·         Part A (Clear Amber) and Part B (Dark Purple) are combined in a 2:1 volume ratio (100:45 by weight) to form the mixed adhesive (Dark Purple).

·         For wider cracks (6 mils to 1/4 inch), CCS Standard IR is recommended.

·         For extremely narrow cracks (2 mils or 0.05 mm), CCS Low Viscosity IR or Ultra Low Viscosity IR is suggested.

·         For high-temperature conditions (above 90°F), CCS HiAmb IR is advised.

·         For large voids or heat management, CCS Low Exotherm IR may be required.

Ideal for structural crack repair in situations where pressure injection is needed but back sealing is not feasible. Used on dry, damp, or wet concrete, and compatible with masonry, stone, steel, and wood. It effectively fills cracks as small as 10 mils (0.25 mm) and is also used in load-bearing grouting applications under equipment.

·         Mix Ratio: 2:1 by volume

·         Viscosity (at 73°F/23°C): 500 cps (mixed)

·         Pot Life/Gel Time: 7 minutes at 73°F (23°C), 28 minutes at 40°F (4°C)

·         Minimum Substrate Temperature: 40°F (4°C)

·         Installation Range: 35°F to 65°F (1.7°C to 18.3°C) for optimal performance

·         Full Cure/Re-injection Time: 40–50 minutes post initial injection

·         Installation Thickness: Should not exceed 1/4 inch (6.35 mm) unless pre-placed aggregate is used

·         Coverage: Not specified per gallon, as this is an injected material; usage varies with crack volume

·         UV Stability: Not specified (typically not UV stable—intended for internal structural use)

·         Curing: Final curing and load bearing strength achieved at 7 days (73°F)

·         Heat Deflection Temperature: 110°F (43°C)

This material offers excellent bond strength with a slant shear bond resulting in concrete failure (ASTM C882), and a pull-off strength of 400 psi (2.8 MPa) per ASTM D1583. Surface preparation must meet ICRI CSP 2–4 and be clean of all bond-inhibiting substances. The product is chemically resistant to many acids, bases, fuels, and oils but has limited resistance to hydrocarbon solvents. Tools and equipment must be cleaned before curing using acetone or epoxy strippers.