Underlayment without primer underneath?

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Old 09-20-14, 01:21 AM
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Underlayment without primer underneath?

I'm currently replacing an engineered wood floor which has Gyp-Crete underneath it. The contractor was supposed to prime the Gyp-Crete with two layers of ARDEX P 51 Primer before applying the ARDEX GS-4 self-leveling repair underlayment; however, he applied the underlayment without using the primer underneath it. That's the current state of the project.

Can you tell me what the implications are of not having primer between the underlayment and the Gyp-Crete? And, if this is problematic, what could be done at this point?

Thanks!
 
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Old 09-20-14, 04:11 AM
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The SLC could have a problem with adherence. But since you are laying engineered flooring (assuming click lock) over an approved underlayment you may not have any ill effects.
 
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