short answer - ' no' but sealing will keep them cleaner,,,pavers are just concrete w/added color- probably white cement unless you think shades of gray ( then portland's used ,spray on 1st coat & backroll w/3/4" nap roller cover- 18" rollers let you finish faster,,,ALWAYS add sealer by working from wet edges small roller covers make this extremely difficult,,, pick a sealer that's uv resistant,,, 'CSS' beats all other acrylic solvent sealersolvent das its lasced w/methylmethacrylate but may not be available to any who are not licensed by elitecrete... NEVER attempt sealing on a bright sunny hot day good luck
rareky did we add
ratrely did we add non-slip additive to pavers
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