how long to wait between LTP seal on slate and grouting

n1ckb · 25 Jul 2012

hi all,

got my slate down and put on 3 coats of ltp mattstone - how long should i wait before i can start grouting?

the ltp says 2 hours between coats but some things suggest 24 hours is need or even 3 days for full penetration ( ! )

any ideas??

thanks

tpt · 25 Jul 2012

its a bit late now but really you wanted 1 coat before grout and then 2 afterwards.
give it overnight if your in no rush

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how long to wait between LTP seal on slate and grouting

n1ckb

tpt

DIYnot Local

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