Blazing-fast concrete crack repair that's grindable in just 30 minutes — the professional's go-to for same-day epoxy floor prep. Stone Coat Floor Patch PRO is a low-viscosity, two-part epoxy patch built to fill cracks, pits, holes, control joints, and expansion joints in concrete and other flooring substrates fast. With a working time of just 2.5–3 minutes and ready-to-grind in only 30 minutes, it eliminates the waiting game that slows down traditional patching materials — so you can move straight into your epoxy flooring installation the same day. Why Pros Choose Floor Patch Pro: Ready to grind in just 30 minutes Simple 1:1 mix ratio by volume Fills cracks, holes, and expansion joints Low viscosity for easy pouring and penetration Strong adhesion with minimal shrinkage Creates a smooth, seamless surface for epoxy application Low-VOC, low-odor formula Suitable for new and existing concrete Made in the USA Pro tip: For deep cracks or large repairs, mix Floor Patch PRO with Epoxy Thickener to prevent settling and ensure a smooth, seamless surface ready for epoxy application.