Drylok Fast Plug Hydraulic Cement 10 lb. (Model 830579)

Drylok Fast Plug is a fast-setting hydraulic cement designed to stop water flow through cracks and holes in concrete and masonry. In just 3–5 minutes, this gray powder mixes with water to form a durable, waterproof patch—making it the go-to solution for emergency leak repairs and routine masonry maintenance. Its rapid cure time and expanding formula lock the repair in place, even under hydrostatic pressure of up to 3,050 lb, without the need for a topcoat.

Whether you’re sealing basement walls, anchoring metal fixtures to masonry, or filling settlement cracks above or below grade, Drylok Fast Plug delivers a reliable, long-lasting bond. Use it indoors or outdoors to patch mortar joints, repair holes, and stop active water leaks in seconds.

Key Features

• Sets in just 3–5 minutes for quick, dependable repairs
• Stops active water leaks—even under pressure up to 3,050 lb
• Expands as it cures to lock firmly into place
• Ideal for interior and exterior applications
• Anchors metal to concrete and masonry
• No topcoat required

⚠️ WARNING: This product can expose you to Silica, crystalline known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.