I got into sandblasting about 10 yrs. ago.Built alot of the eqipment myself.
I used to be into restoring garden tractors.Anyway,it is a filthy job.You'll
have sand in your ears,hair,eyes,mouth( and alot of other places that we wont talk about) for about three days.BUT,it does do a great job,no doubt
about it.
But you gotta be carefull when using these things.The cabinet models are pretty safe as everything is contained.But the pressurized ones that you use outside,they are nasty!!Make sure you wear heavy clothes and gloves.I use coveralls and the full length welders gloves.Also,a GOOD resperator to filter the air.I beleive you can get what they call "Siliconosis" from getting too much of the dust in your lungs,bad stuff.I bought a "sandblasters" hood when i started doing this stuff but didnt like it so i started using a old welding helmit
with just the clear lens in it.Gotta have extra lenses as they only last about ten minutes before they are "frosted",and you cant see.If you get the right kind of helmit,you can fit a resperator underneath.I fix up an "apron" on the back of the helmit to keep the sand from going down my neck.
The compressor i use is one i built with a 4-cyl. 2 stage pump,driven by a 18 horse Kohler twin engine,so its portable.Got an 80 gallon tank underneath the pump and engine,mounted on a VW Rabbit rear axle.
Fairly serious compessor for the average guy.But if you want to get it done and you dont want to take all day,you need at least that.The blaster
i use goes through about 10 pounds of sand in a minute and it does make that compessor work.Its pumping about 75% of the time i'm blasting.It does take a good size compressor to run a decent size blaster.If i remember right,
the manufacturer for the compressor pump(Speedair),recommends 75%
max. pumping time,with a 25% cool down time at least.Otherwise,you'll
eventually burn the compressor up.
Anyway,thats just to give you an idea whats involved.If its just a one time thing,i would take it to somebody who is set up to do it,and pay them
for the work.Its just alot less hassle and would prob. be cheaper in the long run. digger2