Time between scratch coat & top coat

Joined
30 Dec 2003
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Location
Worcestershire
Country
United Kingdom
Hi Forum,
Some advice please
I've laid a scratch coat on a small breeze-block wall. The mix was 5-1 with no other additives.
How long do I need to wait before applying the top coat please ? (I intend to use 5-1 mix again with no additives).

Thank you
 
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dontbelieveawordofit

4:1 would have been better for a scratch coat , but it’s not a problem,
and the labour is halved with plasticiser in the mix.
let it cure , couple of days.
 
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