Originally Posted by ssaahemifan
I had trouble using SPI Epoxy and metal prep even though I scuffed the treated surface before epoxy.
I have always metal prepped every car I do. This was the first time using SPI epoxy and I had some adhesion issues.
I was going to abandon it for a different epoxy that is compatible with metal treatments ??
Maybe I don't have to???
SPI says no etch products.
I would say just follow the Directions and you will be fine