what sandblaster/sand did you use?
I really want to do this too
I'm also interested in what you used for a sandblaster setup, as well as what you used to paint the frame after. I've been using a wire brush and POR15, but I'd rather use a method that gets down to bare steel.
Well, my dad owns a commercial sandblasting company, so I spent a good part of my life sandblasting automotive stuff as well as heavy equipment, so if I was smart, and my schedule lined up, I would’ve went to his shop to do it, instead of the way I did it. My own blaster is much smaller and less powerful, so it took a lot longer to do. Originally I planned to just do from the rear end housing back since that is where the exhaust will be, and I had some rust on the welds of my hitch, etc., but once I was into it, I kept moving forward. I ended up doing everything all the way to the front wheels, since that’s all I could reach with the rear up on ramps. Next time I’ll finish the front section, but that won’t be as time consuming.
Anyway, my personal blaster is a highly modified pressure tank style that started life as a 110lb. capacity model from Harbor Freight. It worked ok for very small parts as it was, but would be way too weak to effectively do a job of this scope unless you have A LOT of time and sand. I redesigned the flow plumbing, as well as making a longer, larger ID blast hose, and nozzle assembly. The tiny ceramic nozzles that HF supplies are part of the problem because they don’t flow adequate volume to do big stuff. The one I used was bought at a sandblasting supply house, designed for much larger commercial machines. It is still small compared to what my dad’s equipment uses though.
For paint, I would’ve preferred to have used POR15 then topcoated with some acrylic enamel for protection, but because of the timing, I just had to get it done when it fit my schedule, and couldn’t wait to order the POR, so I ended up spraying it with red oxide Rustoleum primer, and topcoating with gloss black enamel. I originally wanted to go with satin black, but gloss holds up better for undercarriage stuff in my experience, and on a daily driver, will dull down a bit anyway, but the gloss will make it very easy to keep clean.
I have some Icon 2.0 shocks and new springs going on after the exhaust is done, so I definitely didn’t want to be sandblasting and painting back there later!