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Posted by charlie on May 16, 2008, 6:01 pm
> On 5/16/2008 6:30 AM trader4@optonline.net spake thus:
>
> >
>>>
>>> > Have a potential sandblasting job (removing peeled paint from below a
>>> > steel &
>>> > concrete staircase, fairly large area), and I suggested to my client
>>> > that we
>>> > might use either one of these Harbor Freight sandblasters with a
>>> > rented
>>> > compressor:*
>>>
>>> >http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92857
>>> >http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96972
>>>
>>> > Does anyone have experience with either of these, or with similar ones
>>> > from
>>> > this or other vendors? One's $15, the other $13, so when my client
>>> > asked if
>>> > these would do the job, I told him that they probably would, and even
>>> > if we
>>> > ended up buying two of these to finish the job, they're so cheap that
>>> > they
>>> > could be practically considered consumables.
>>>
>>> > *For those who ask "Why not just rent a sandblaster?", an interesting
>>> > tale
>>> > therein: I did call my favorite rental place (Cresco), who told me
>>> > that not
>>> > only do they not rent sandblasters, but that nobody else does either.
>>> > Asked
>>> > why, they said that it's because of liability issues; apparently,
>>> > someone
>>> > renting one damaged nearby parked cars one too many times.
>>>
>>> > They do have all kinds of compressors available to rent, though.
>>>
>>> The grit capacity of those units will limit you significantly. The
>>> actual power
>>> will be dependent on the PSI available from the compressor (at the cfm
>>> the
>>> blaster needs, or there will be lots of waiting) In my experience with a
>>> handheld blaster, 150psi is about the minimum to do anything
>>> significant.
> >
>> I have a Harbor Freight 20 lb Sandblaster. It's red, stands on 3
>> legs, comes with a long hose, nozzle, and I think it listed for about
>> $100, but I got it for less on sale. I used it to take paint off a
>> section of concrete patio. I am very happy with it. The only
>> problem I had was I used it with an average portable compressor that I
>> already had. It does about 8CFM at 50PSI, 6 at 90. So, I had to
>> let the compressor get up to near max pressure, then go at it for
>> about a min or so, then stop and let the compressor rebuild. The
>> nozzle did clog occasionally, which was probably due to the pressure
>> going to low, or it could have been that the sand was a bit damp.
>> At that point, I had to remove the tip to get it to clear.
>
> Is it this one, or similar? (This one's a 40 lb. unit, same price):
> http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=34202
>
>
> --
> The best argument against democracy is a five-minute
> conversation with the average voter.
>
> - Attributed to Winston Churchill
this is the one i use on glass and knocking the rust off of metals. you can
also get the grit necessary at HF. use AlO. don't use sand or silica. use a
minimum of a p95 mask, unless you like silicosis and not being able to
breath.
regards,
charlie
cave creek, az
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