jcclark
Oldtimer
I haven't use etch primer in over 25yrs, BUT!
I painted a stripped aluminum boat with etch first, then urethane back in the early 90's,
(The etch was a 1K product)
Several yrs later I repainted it, sanded the paint, sprayed epoxy, then used urethane again.
Worked great and held up well. But then several yrs later I wanted to change the color
so I stripped it to the aluminum with stripper first, well, the urethane and epoxy came off easily,
but the etch wouldn't budge, I had to sand it off.
So does that mean for bare aluminum etch would be stronger,better than epoxy?
I may be painting bare aluminum again.
I painted a stripped aluminum boat with etch first, then urethane back in the early 90's,
(The etch was a 1K product)
Several yrs later I repainted it, sanded the paint, sprayed epoxy, then used urethane again.
Worked great and held up well. But then several yrs later I wanted to change the color
so I stripped it to the aluminum with stripper first, well, the urethane and epoxy came off easily,
but the etch wouldn't budge, I had to sand it off.
So does that mean for bare aluminum etch would be stronger,better than epoxy?
I may be painting bare aluminum again.