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Shot blasting is the recommended method of surface preparation of concrete for most polymer floor installations. Shot blast equipment utilizes an alloy wheel spinning at high speeds to throw small steel particles at the substrate in a controlled, dry, 99% dust-free operation. This process removes surface contamination, adds profile and vacuums the concrete clean in one
Diamond Grinding Diamond grinding should is used in areas inaccessible to shot blasting and then only with coarse diamond wheel.
Scarifying is primarily used for the removal of deteriorated concrete, coatings and polymer flooring systems.
Hand Tool preparation consists of the use of mechanical tools and equipment designed to abrade or chip away the surface of the concrete. Common tools available include chipping hammers, hand held diamond grinders and concrete crack chasing saws. These tools are typically used to make keyways, prepare edges against walls and columns.