Fast, Long-Lasting and Effective Concrete Repair Instead of calling a contractor and keeping your floors out of service for 24 hours or longer, 3M Concrete Repair Self Leveling lets you do it yourself in minutes. This low-viscosity urethane concrete repair material comes in a cartridge and applies easily from a regular caulking gun. Its self-leveling formula flows freely into cracks, breaks and spalls in horizontal concrete surfaces such as concrete floors. It hardens in as little as five minutes, and can be driven over with a forklift in 15 minutes without damage. The material cures to any depth without cracking, and can be sanded and refined for smooth finishes. It also expands and contracts to resist cracking or loosening for long-lasting repairs vs. standard concrete. 3M Concrete Repair Self Leveling is Ideal for minor repairs in building construction, shop floors, walkways, stairways, pools, decks and patios. Recommended Applications For concrete floors or horizontal concrete surfaces Repairing cracks and spalls Setting anchors Light-duty custom threading and anchoring Bonding dissimilar materials (concrete, metal, stone, masonry) Easy to Apply 3M Concrete Repair Self Leveling is a two-component repair material in a convenient cartridge which fits standard caulking gun applicators. The cartridge nozzle (included) meters and mixes precise proportions of material for optimal leveling, hardening and long-term use. The gray material can be sanded in 15 minutes and is paintable in one hour. Better Science for Better Repairs from 3M Since 1925 when a 3M lab assistant invented masking tape, 3M has been applying science to life – developing adhesive products and technologies that help entire industries and individual businesses worldwide. The work that began with a single 3M engineer now spans decades and generations. And all of it goes into each adhesive, sealant and protective coating like 3M Concrete Repair Self Leveling – to improve performance, and to help businesses like yours operate faster, better and more efficiently.