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Crystal Seal / Universal Sealer

Crystal Seal
Crystal Seal

Our Universal Sealer and CrystalSeal products are manufactured at our factory in Cambridge, using the most advanced formulations to give you and your customer a product that will not disappoint.

Our CrystalSeal product is a neutral PH Crystaline granule that is applied to joints of block paving. Once combined with our driveway sealer the joints are welded shut, stopping weeds from penetrating the surface.


Once the area has been jet washed clean of any weeds, mould or residue the area must be allowed to completely dry. When dry, apply the Crystaline granules to the surface,brushing in to the joints; Make sure all granules are thoroughly brushed in, leaving no excess exposed to the surface.

Sealing the Surface

Once the area is completely dry and free of surface contamination, apply our Universal Driveway Sealer in two stages. Allow at least 1 hour between applying coats of Sealer to let the first layer completely penetrate the block paving surface and crystaline granules; A second coat will harden and rejuvenate the block paving surface and protect from all stains and mould.


Concrete Training Courses
Call us now on 01480 435919 to register for one of our upcoming courses

Stencil-Tech Ltd is a fully registered CITB training centre with over 30 years experience in training, manufacture and supply.

We have credited trainers and assessors all of which are certified with CITB qualifications to help you learn and kick start a new business venture or help you develop on new skills or improve on existing ones.

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