My Media Blasting & Priming Lessons

[rboltz]

Steps may only apply to epoxy primer, which is what we used. Don't know if different for regular primer. The epoxy seals the metal. Really tough.

[sf38a1]

Living in the tropics of Fla, I prime as so as I get done blasting, then worry about filler. On humid days (Sun - Sat) the metal will start rusting almost immediately. even if I only get part of it blasted I will still prime what i have done, If I dont It will be rust the next day. I once blasted a horse trailer that took two days to blast, I wrap it in vesqueen (?) (construction plastic wrap,)
To keep the dew off the bare metal, it seem to work.

[Snuffy]

rboltz -
Great report!! Just about to do the same thing - buying my media this weekend.

Snuffy

[porkchop]

After I had all my parts sandblasted I sprayed Ospho on them. That keeps the rust off great. I could spray them and they could sit for days with no rust, this was in NC. Just for fun I sprayed a set of needle nose that I blasted and then set them outside to see what would happen. After two weeks there was no rust on them. Stuff works.