Best stuff ever for grouting porcelain tiles, will last a lifetime withstands heavy duty pressure wash without budging, weed free. This product is recommended for professionals only, as it sets very rapidly and could ruin you're paving however watch a few YouTube video's on MCEG, and you're good to go. Brilliant service and price from Howarth Timber using click and collect, photo of a patio I layed and used the grout on.