Attempt/Mistake #2

[litew8]

I think that DuPont etch primer should be covered with another primer. We used DuPont Urethane on top. If SPI says it will be "fine" to use their Epoxy on top of DuPont's etch primer - that's what I'd do (but the etch primer does need covered within a certain amount of time). It'll adhere fine to to the etch primer. No need to go through all that extra work. Etch (especially DuPont's) is used by MANY today, it's a proven, effective product.