SealGuard II offers prevention of aggressive water infiltration through virtually any substrate.
Originally developed in the USA for the mining industry, SealGuard II is a professional grade, highly effective, field tested product available for use in a multitude of applications – wherever high water flow needs to be stopped immediately.
The cured polyurethane product is ideal for manholes, culverts, bunds or any concrete, cement or brick structure that needs to be dry – for its own purpose, or prior to a long term repair.
SealGuard II performs well with all but the most severe solvent or chemical attacks, such as highly concentrated nitric or sulphuric acid. SealGuard II is hydrophobic — it will not shrink or transmit VOCs and requires no special breathing systems or protection.
The SealGuard range of polyurethane grouts has been used in mines, geothermal wells, dry-docks, and virtually anything else that can leak. Highly visible water sealing projects, include:
- The “Big Dig” in Boston
- Ground Zero in New York City
- Dulles Airport in Washington, D.C

