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The SIOUX CHIEF sc-60205005 is a hydraulic cement leak stopper formulated to seal active water leaks in concrete and masonry structures. This fast-setting material sets in approximately five minutes, allowing plumbers and contractors to stop running water quickly without extended downtime. It works by expanding slightly as it cures, creating a watertight mechanical bond against the surrounding substrate. The product ships in a 10-pound resealable plastic bucket, keeping unused material dry between applications. It is suited for below-grade and wet-area repairs where standard Portland-based mortars would wash out before curing.
This hydraulic cement is used in residential and commercial plumbing applications where water intrusion must be controlled at the point of entry. Common uses include patching around sewer outlet penetrations, sealing water service line entries through foundation walls, and stopping leaks around floor drains and pipe stubs. It is typically applied by licensed plumbers or experienced masonry contractors working on foundation walls, wet pits, vaults, and utility trenches. The fast set time makes it practical for repairs on pressurized or gravity-flow systems where water cannot be fully isolated before work begins.
Designed as an OEM-style hydraulic cement repair material for use with concrete and masonry substrates in plumbing, foundation, and utility applications.
Application is typically performed by a licensed plumber or masonry contractor following applicable plumbing code requirements such as the IPC. Mix only the quantity that can be placed within the working time, as the five-minute set leaves no margin for adjustment once placement begins. Wear appropriate personal protective equipment including gloves and eye protection, as hydraulic cement generates heat during hydration. Do not apply to frozen substrates or in ambient temperatures below the cement manufacturer threshold without additional cold-weather precautions.
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