Joined: July 2004
||Posted: 20 June 2019,17:16
It doesn't really matter but....
If you seal first, then leave AT LEAST a week before jointing to ensure the selant has properly cured. Some jointing mortars (2-part) have a resin that can soften some sealants.
If you joint first, allow AT LEAST 3 days before sealing, for more or less the same reason, but be aware that some jointing products (both 1-part and some 2-parts) can leave a residual film on the surface of the paving so it's better to wait until that (if it appears) has weathered away (usually takes a couple of weeks) before sealing.
Personally, I would never seal a pavement less than 12 weeks old and, given my own way, I'd actually leave it for a year to ensure any efflorescence or other marking problems have had a more-than-fair chance to make themselves scarce.
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