needle scaler???

Anonymous-0 · Nov 17, 2012

Anyone got one of these?

http://www.harborfreight.com/air-needle-scaler-1108.html

Don't have to be from HF, just a similar tool. Foundation of our house is nice sandstone that someone painted over. A lot came off with a pressure washer but the real tuff stuff is still there. Guy was telling us today not to sandblast it but to use this air tool (and described a needle scaler)... If someone has one, would you mind trying it on a piece of sandstone or cement block and see if it cleand it up without any real damage? I don't want to buy one just to tear something up.

Thanks.

Dave

Super Trucker · Nov 17, 2012

Hey dave2 I use them on the old tractor cast to clean for paint
and works awesome! I have found on sensitive places I use the
air valves as a throttle and go as soft as you need. They make
short work of stuff. Just use good thick gloves and ear plugs
the noise and vibration could be a bit much.

tomtirediron · Nov 17, 2012

Dave, here"s a before and after on a 4" conc block. Looks to me like any older block that was softer would really be damaged. I could even did a small hole in this newer block without pushing too hard. Incidentally this scaler is a Northern tool if your interested. Mechanics had one at work. They would send summer lacky out to scale out the entire 12 yard truck box after winter salt/sand prior to repainting. They work the crap out of 45.00 Northern tool needle scaler between 4 full time wrenches and she"s still going. Just my 2 cents.

Wardner · Nov 17, 2012

Any mechanical means to remove paint from any surface will impart a textural change in the substrate. In other words, you (and others) will notice where the scaler has been used.

You probably should use paint remover. Something like Peel-Away. Google that. The better products that use high concentrations of methylene chloride are no longer avialble at retail establishments. It's a carcinogen. Professionals can get it though.

Heat is also an option but it can cause spalling of the stone if the operator is reckless. Don't use flame. Heat gun or hand held infa-red resistance heater. Follow with pressure washer. Scrapeing will leave tool marks on the soft stone.

flambeauone · Nov 17, 2012

Dave,
The ones we use at work are florida pneumatic, they come
with two set of needles a set about an eighth inch in dia and
a smaller set. The smaller set is much easier on the surface
ypur working on with alot less damage.

DWF · Nov 17, 2012

I have a needle scaler from HF like on the link. I've had it for quite a few years. Works great and I have used it a lot with no trouble. You won't believe how much you can use it for.
DWF

S.Crum · Nov 17, 2012

Needle scalers do work very well. On sandstone you might want to start at a lower air pressure and work upward to optimum. You need a pretty good compressor and avoid "dry" firing it without the needles against the work (unless you like replacing needles). These work excellent for peening and de-slagging welds also. Sheet metal should be avoided unless you're into the "hammered" and distorted look. Casings clean up very nice. Just follow the safety rules. Goggles, face shield, mask, ear protection, heavy gloves and send the wife shopping. These are great for honing your people skills in the hood early on Saturday and Sunday morning.

earlschieb · Nov 17, 2012

They work great.

Anonymous-0 · Nov 17, 2012

I'd be pretty cautious. Sandstone is pretty soft stuff.

Glenn

Anonymous-0 · Nov 17, 2012

If the sandstone is porous and painted, how far in do you go.? I have one but only use it on metal, don't suspect it is made for brickwork.

needle scaler???

Anonymous-0

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Super Trucker

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tomtirediron

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Wardner

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flambeauone

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DWF

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S.Crum

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earlschieb

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Anonymous-0

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Anonymous-0

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