Moisture activated polyurethane chemical grout sealant used to control water infiltration in concrete

CHEM SEMIRIGID is a moisture activated polyurethane chemical grout sealant containing prepolymer isocyanates (MDI). CHEM SEMIRIGID is a single component,solvant free non toxic product which reacts with water to form a hydrophobic semi rigid and chemically resistant foam. Once the product has completed its reaction, the foam becomes a completely inert material. CHEM SEMIRIGID reacts rapidly with water and can expand up to 15 times its volume.

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Solhydroc Inc. designs, manufactures and sells products used to repair, rehabilitate and protect concrete. The main objective is to supply materials and methods to meet and surpass the needs of the company’s clients and to propose long-term solutions that will ensure high-quality concrete.


Advanced Hydration Technology (THA) integrates calcium aluminate and Portland cement for fast setting, high strength, shrinkage compensating mortars. They rely on early hydration to minimize the residual moisture (at least 3%) that is usually found in mixtures made up of only normal Portland cement. With this technology, you can install several layers of flooring in 24 hours, allowing you move around on surfaces sooner, thus shortening the construction cycle for flooring applications. Formulations containing this technology are adapted for higher ultimate compressive strengths and provide greater durability.


Made 100% in Quebec and VOC-free, Solhydroc products contribute to LEED certifications for our customers. Plus, we use innovative manufacturing methods to reduce our ecological footprint. For more information, contact our representatives.

Additional information

Weight 20.5 kg