Hy-Speed™ 500 from Garon Products, which the company calls “instant concrete in a can,” is ideal for repairing potholes without costly downtime. User adds water, then mixes and pours. This easy-to-apply emergency repair cement becomes a concrete-hard mass in one hour and is ready for traffic. The cement expands as it sets, “locking in” a strong, safe permanent patch.

Garon Products Inc., Wall, NJ.