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GCP has been a pioneer the development of innovative technologies and value-added products for the concrete industry, to improve the quality, strength, durability and appearance of concrete.

Widely known for its DRY-BLOCK® System of integral water repellents for architectural masonry block construction, GCP offers a comprehensive line of products for the dry-cast concrete and manufactured stone veneer industries. The products include efflorescence control admixtures that enhance the aesthetic appeal of concrete products, as well as plasticisers, accelerators and strength enhancers to improve overall product quality and enhance production.

GCP products are specified by architects and engineers, and are used by contractors, precast and block producers to build and protect concrete masonry structures around the world.



Daraccel 37M 37MDaraccel® 37M is a set accelerating admixture formulated to provide accelerated set during low ambient temperatures
OPTEC EC 625 EC 625Slurry coat applied to the exposed surfaces of machined concrete products. Designed for use in plants producing concrete
OPTEC EC 865 EC 865Optech 865 is a liquid water proofing admixture that can be used in concrete & dry-mix products.
QUANTEC PL 433 PL 433A strength-enhancing, ready-to-use liquid plasticiser for use in zero or low slump concrete products, producing the
QUANTEC PL 442 PL 442A ready-to-use liquid plasticiser for wet cast manufactured concrete operations. Improves production efficiency while
QUANTEC PL 466 PL 466Plasticizer for dry concrete