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Before applying block paving sealer ensure paving is clean, dust free and that no efflorescence (surface whiteness) is present. If efflorescence is visible ensure it is treated with efflorescence remover, then wash down thoroughly with clean water. Allow 4-6 weeks after treatment to ensure efflorescence does not re-appear.


Before applying block paving sealer to existing paving it must be clean, free of stains, dust, algae, weeds and efflorescence. For optimum results, treat paving with fungicidal wash prior to cleaning with a pressure washer.


Check that the block paving is dry by scraping out the sand between the blocks to a depth of 5-10mm. If the sand is dry, the paving is now ready for sealing. With a sanding broom sweep additional kiln dry sand into all joints. Ensure there is no surplus sand on the face or bevelled edges of the blocks.

Protect areas such as flowerbeds, ponds and adjacent areas from splashing. Ensure temperature is between 7-23 degrees and that no rain is forecast for at least 4 hours.

For further information on the preparation of paving prior to application of block paving sealer contact us or call us on 01268 722500