Help with s&c internal wall

Spreada

New Member
Hoping for some help!
For an internal s&c float and set wall that needs a scratch coat then float coat. Would anyone use waterproofer in both coats?
There quite warm walls so would assume needs to be some waterproofer in the scratch to allow to work with the float. And then waterproofer in the float to allow me to skim a few days later with dampening the wall down
 
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