Dtm primer question.

[barbee6043]

Agree. We have had great results with SPI. Their tech info on the epoxy primer says you can only use Ospho as a rust treatment, if you need one, and we have done that with good results. We will continue sanding to bare metal, then Ospho, then SPI epoxy primer. https://docs.wixstatic.com/ugd/8ced3e_b2286fdce9b249da92a7462b7c6af093.pdf
Also, when you call their tech line, you get the company owner.

Interesting read, especially about the min. temp. and their epoxy. Maybe it is that for all co.'s epoxy?