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Anyone have experience w/Harbor Freight sandblasters?

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Anyone have experience w/Harbor Freight sandblasters? David Nebenzahl 05-15-2008
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Posted by David Nebenzahl on May 16, 2008, 9:32 pm
On 5/16/2008 3:01 PM charlie spake thus:

>
>> 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
>
> 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.

Your application sounds a lot lighter than mine. We need to get a lot of
old paint and rust off the underside of some metal & concrete stairs.
Would that grit be sufficient for that? Someone else in this thread
didn't seem to think so.

And yes, I intend to wear a mask (I have a respirator).


--
The best argument against democracy is a five-minute
conversation with the average voter.

- Attributed to Winston Churchill

Posted by on May 17, 2008, 12:40 am
> On 5/16/2008 3:01 PM charlie spake thus:
>
>
>
>
> >> Is it this one, or similar? (This one's a 40 lb. unit, same price):
> >>http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=3D34202=

>
> > 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. us=
e a
> > minimum of a p95 mask, unless you like silicosis and not being able to
> > breath.
>
> Your application sounds a lot lighter than mine. We need to get a lot of
> old paint and rust off the underside of some metal & concrete stairs.
> Would that grit be sufficient for that? Someone else in this thread
> didn't seem to think so.


If you buy the abrasive at HF, it's going to get very expensive for
any larger job. My conclusion was those abrasives were good for small
jobs, or if you have a closed sandblasting system.


>
> And yes, I intend to wear a mask (I have a respirator).
>
> --
> The best argument against democracy is a five-minute
> conversation with the average voter.
>
> - Attributed to Winston Churchill


Posted by charlie on May 19, 2008, 11:59 am

> On 5/16/2008 3:01 PM charlie spake thus:
>
> >
>>> 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
>>
>> 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.
>
> Your application sounds a lot lighter than mine. We need to get a lot of
> old paint and rust off the underside of some metal & concrete stairs.
> Would that grit be sufficient for that? Someone else in this thread didn't
> seem to think so.
>
> And yes, I intend to wear a mask (I have a respirator).

well, i can blow holes in 1/2" glass pretty easily, especially if i use a
large grit size. paint and rust are a lot softer than that. however i do all
of my work in a blast cabinet, which is not something you're going to be
able to do. you're going to need to recover grit in some fashion.

it would be better to hire this job out to someone who has the tools and
know-how to use them onsite.



Posted by on May 16, 2008, 7:23 pm
> On 5/16/2008 6:30 AM trad...@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 rent=
ed
> >> > compressor:*
>
> >> >http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=3D928=
57
> >> >http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=3D969=
72
>
> >> > Does anyone have experience with either of these, or with similar one=
s from
> >> > this or other vendors? One's $15, the other $13, so when my client as=
ked 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 th=
at 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, som=
eone
> >> > 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 actu=
al 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 significan=
t.
>
> > I have a Harbor Freight 20 lb Sandblaster. =A0It'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. =A0 I used it to take paint off a
> > section of concrete patio. =A0I am very happy with it. =A0 The only
> > problem I had was I used it with an average portable compressor that I
> > already had. =A0It does about 8CFM at 50PSI, 6 at 90. =A0 =A0So, I had t=
o
> > 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. =A0 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=3D34202
>
> --

Yes, looks very similar, but mine didn't come with the water trap and
was 20lbs.





> The best argument against democracy is a five-minute
> conversation with the average voter.
>
> - Attributed to Winston Churchill- Hide quoted text -
>
> - Show quoted text -


Posted by Smitty Two on May 18, 2008, 11:19 pm

> 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.
>
> (Replies that basically say "Harbor Freight sucks!" will be ingored,
> thank you very much.)
>
>
> *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.

I'll have to go along with most of the other respondents and say that to
do this job adequately, you'll need several thousand dollars worth of
blaster plus compressor. Hire the job out.

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