Actually I don't have any issue with the spec and for the application, everything is fine but given my lack of chemistry knowledge I'm just curious about the chemical reaction/process. The paint supplier representative on this project doesn't know much as well.
If the spec require 3 coats when...
I do not argue about the specification and why there is a maximum thickness, cracking, sagging, pinholes, bad adhesion etc... I'm just wondering if you get the exact same thickness in a single coat without any visible defects, why to sand down?
My guess would be that we could get cohesion...
I understand the failures due to over-thickness, but I would like to understand the difference between 1 coat of 600 um and 3 coats of 200 um on the same product.
Hi everyone,
To build up a thickness of 600 um we are applying 3 coats of 200 um of the same paint material, I suppose it's to avoid sagging during application but when on the first coat we achieve a thickness over the spec the client ask to sand down. I'm wondering if we achieve 600 um with a...