B
BoostedOne
So I have had this job on the back burner for a few months for a few reasons. Pretty much a sand and shoot(no rust repair, only minor dings, etc). Its a dream job, except one thing.
It has a factory body kit with some sort of thermoplastic bumper covers, side skirts and wheel arch/flares. And as is typical with an 80s car, the factory applied paint/primers are hard as a rock, and the bumpers appear to have been resprayed once. Both the original paint and the respray I assume is some kind of single stage enamel.
Anyhow, so the part of this I have been dreading is stripping this stuff. I have done a few of these in the past, and using 80 grit 3M gold on a orbital takes literally days. Because the paint/primer typically has cracks all the way to the plastic, you just about have to use 80 grit til you hit the plastic, and then it wants to get "fuzzy" so then you have to go over it with 220 for another several hours.
Between the time and money spent on paper(plus all the primer and subsequent sanding), I have been trying to find out about stripping using walnut shells and corn cob media. As a reference, I am familiar with using crushed glass. I routinely use 40/80 mesh through my ALC pressure blaster. But these vegetable and nut products is something new, and doing it on plastic is also new.
So, I guess big questions are walnut or corn cob(or other)? What mesh/grits? As long as I am not a moron, how easy is it to create a bunch of low spots? Any other tips?
Thanks!
It has a factory body kit with some sort of thermoplastic bumper covers, side skirts and wheel arch/flares. And as is typical with an 80s car, the factory applied paint/primers are hard as a rock, and the bumpers appear to have been resprayed once. Both the original paint and the respray I assume is some kind of single stage enamel.
Anyhow, so the part of this I have been dreading is stripping this stuff. I have done a few of these in the past, and using 80 grit 3M gold on a orbital takes literally days. Because the paint/primer typically has cracks all the way to the plastic, you just about have to use 80 grit til you hit the plastic, and then it wants to get "fuzzy" so then you have to go over it with 220 for another several hours.
Between the time and money spent on paper(plus all the primer and subsequent sanding), I have been trying to find out about stripping using walnut shells and corn cob media. As a reference, I am familiar with using crushed glass. I routinely use 40/80 mesh through my ALC pressure blaster. But these vegetable and nut products is something new, and doing it on plastic is also new.
So, I guess big questions are walnut or corn cob(or other)? What mesh/grits? As long as I am not a moron, how easy is it to create a bunch of low spots? Any other tips?
Thanks!