I have a poured concrete retaining wall that I want to put a scratch coat on. I’m going to use Sakrete Type S mortar for the scratch. What would be a good bonding agent to first put on the wall before applying scratch coat? After the scratch coat I’m going to apply Kirtbag. Any advice is appreciated.
Thanks,
Bill

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I use structure coat for the scratch coat mostly now... but before you put the bonding agent on make sure you power wash... sometimes bonding agents are bond breakers. 

Thank you for the advice. Much appreciated.

Bill

Nathan Giffin Vertical Artisans said:

I use structure coat for the scratch coat mostly now... but before you put the bonding agent on make sure you power wash... sometimes bonding agents are bond breakers. 

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