I am considering buying the Harbor Freight portable abrasive blaster
($30). I need to clean rust off of a wrought iron gate, as well as
remove paint/finish from some metal parts. This blaster looks as though
it would fit the bill. One concern I have though, is that my
Porter-Cable pancake compressor ($299 HD combo deal) is slightly below
the tool's minimum requirements (the tool calls for 2HP - 3.3 CFM
@90psi, and my compressor puts out 2HP - 2.6 CFM@90psi). Can anyone
provide any me feedback/input?
First I would question the quality of anything Harbor Freight sells. As
for the minimum rating, it should still work, but if you are doing any
volume of work, you will regret it. I bought a blaster to clean up the
brick on my home. I had a compressor well over the stated minimum
recommended values, but I ended up renting a trailer mounted gasoline
I have the 5 gallon model and a 3 hp Sears 10 gallon compressor. When bead
blasting my pool I could run for only 3 minutes before the pressure dropped
to less than 80 psi which was the minimum I needed to remove the calcium. I
added a old 5 foot high oxygen tank and let the compressor pump everything
up to 120 psi. I could run almost a full 5 gallon tank of glass beads before
the pressure dropped into the non useable pressure area. I have 200 feet of
1/2 air hose. Not the 3/8" that most people have.
This is hard duty for an oil-less compressor. The rings are Teflon coated
and if you get them hot enough you will destroy your compressor.
For a gate I would not bother blasting. 4" grinder with a wire brush would
be my first choice.
Check with your local abrasive suppliers I got a 75 pound bag of #10 glass
beads for $40. The hood that comes with the kit is usable. I use a full
face mask with filters when I use mine. I do not want all that glass in my
Might be cheaper to take it to a business that does this
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