The usual story of grabbing the wrong thing off the shelf and only noticing after the work was done…
I'm not bothered by the short-term outgassing, but I'm concerned that exterior paint is often softer than interior, as it has to flex more in outdoor conditions.
I still have a coat to go on my skirting boards.
If I buy the equivalent latex paint in its interior form and use that for the final coat, will its strength be compromised by the softer first coat? Would I be better off completing the work all with exterior paint?
Obviously the very best that I could do is sand it all down and start from scratch. That's not going to happen.
Best Answer
It's unlikely that you'll encounter problems, but it depends on the specific products, of course. Exterior paint isn't exactly rubbery. I'd do it. If the manufacturer or retailer advise against it, use a sealing primer in between.