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Ardex RA 142 Structural Crack Injection EpoxyVendor:
Use ARDEX RA 142 for structural concrete crack injection and bonding, specifically targeting hairline to 3mm cracks. Its 190 cps low viscosity ensures deep penetration, delivering 70 MPa compressive strength to restore integrity.- $142.33
- $142.33
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Mountain Grout Gel FoamVendor:Green Mountain InternationalUse Mountain Grout Gel Foam for active water leak repairs in concrete. Its hydrophilic chemistry ensures up to 25 times expansion and high elongation for durable, flexible seals, especially under continuous water exposure.
- From $187.62
- From $187.62
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Mountain Grout FlexibleVendor:Green Mountain InternationalUse Mountain Grout Flexible for permanent crack sealing in concrete infrastructure. This hydrophobic polyurethane expands up to 30 times into a closed-cell foam, remaining flexible (44% elongation) and resistant to wet/dry cycles without shrinkage.
- From $187.62
- From $187.62
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Mountain Grout UltraVendor:Green Mountain InternationalUse Mountain Grout Flexible for permanent crack sealing in concrete infrastructure. This hydrophobic polyurethane expands up to 30 times into a closed-cell foam, remaining flexible (44% elongation) and resistant to wet/dry cycles without shrinkage.
- From $187.62
- From $187.62
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Frequently Asked Questions
When do I need crack injection instead of patching the surface?
Use injection when a structural crack or active leak runs through the material, not the surface. Surface patching will not stop movement or water in the crack. ARDEX RA 142 repairs structural cracks in concrete and masonry. Mountain Grout seals leaking cracks and joints.
What is the difference between epoxy and polyurethane injection?
Epoxy bonds dry or stable structural cracks. Polyurethane seals leaking cracks and joints where water is present or moving. ARDEX RA 142 is an epoxy for structural concrete and masonry crack repair. Mountain Grout is a polyurethane grout for leaking cracks and joints in concrete.
Can I inject a dry crack, or does it need water in it?
Use ARDEX RA 142 epoxy on dry, stable structural cracks. Use Mountain Grout polyurethane on leaking or wet cracks and joints. It reacts with water. Inspect the crack first. Check for movement and moisture. Then choose the resin that matches.
Do you sell injection tools with the resin?
Injection tools are sold separately, not with the resin. Packers, hoses, guns, and measuring equipment are accessories from the masonry range. The resins are the injection materials. Confirm the tool fits the resin, port size, injection pressure, and pack size before you buy.
What products here will fix a leaking crack in a concrete slab?
Mountain Grout seals leaking cracks and joints. It forms a barrier where water moves through. For a structural crack that needs bonding, use ARDEX RA 142 epoxy. If the crack is structural and leaking, read the product data and decide: bond or seal.
Which Mountain Grout product is right for my leak?
Mountain Grout Flexible, Gel Foam, and Ultra all seal leaking cracks and joints in concrete. We have full product information on Flexible and Gel Foam. Ultra's product data comes from the manufacturer's technical catalogue. Check the data sheet before you specify it.