: : : I have been following this tool talk since the beginning of this year, there has been a couple of conversations about Sandblasting. Following all of your advise, I bought a 15 gallon pressurized sandblaster from Harbor Freight. I have two water traps installed and my abrasive is not wet, yet I can't seem to get flow out of my hose. The abrasive will only shoot out when the nozzel is not on, then the surface I am blasting not only blasts off the paint but really causes a course finish on my tractor parts. Am I using a to large and aggressive abrasive? What size and type of abrasive works good for tractor parts, both castings and skin pieces?: : I am in the process of blasting mine now.For what it's worth,I'll put in my two cents.After tear down,plug all openings even the small pin head size.To make blasting easier,first clean tractor with pressure washer.Spray parts with paint remover.After paint remover works,pressure wash it off.This may have to be done two or three times.Then sand blast using fine sand.The main thing is plenty of cfm of air.I rented a big commerical portable air compressor.I don't think it will take over three hours to complete the job of sandblasting.I did the chassis in about an hour.[sandblasting]Stripping the paint off first helps speed up the blasting and creates less heat on the thin sheet metal.Hope this helps.Don Any questions, e-mail me. : The Sand blaster is one of the handiest tools in a shop. We use a white silica fine sand works for cleaning for brazing welding and paint preparation. Be sure to wear proper Protection hood etc. H.L.
I use a glass beader every day in my business
for cleaning. There is no one size fits all glass
beads. On cast iron i'd use a medium to heavy
silica bead. On thin metal parts use a very fine
silica bead, or paint stripper that has already been recommended. Paint is especially hard to
get off as the beads warm it up and make it bouncy, then you leave the paint and remove metal. If you can and have access use a propane torch (hardware store type) to burn off the paint then blast the parts. If you have more questions feel free to e-mail us.
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