Add water to Hy-Speed™ 500, mix, then pour like syrup. In minutes this emergency repair cement becomes a concrete-hard mass! Cures to a rapid strength gain…and traffic ready… in just one hour. Expands as it sets, "locking in" a permanent patch to surrounding masonry. Final cure is 10,000 psi - more than three times the strength of ordinary concrete.

For best repair adhesion, add Thinset™ bonding liquid to Hy-Speed™ 500. Mix ratio is 1 1/4 gallons of Thinset™ to 50 pounds Hy-Speed™ 500.

For optimum repair performance, start with the Clean & Prep™ Kit.