iamps
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Location: USA Member Since: Jul 2012
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« on: July 25, 2012, 01:32 PM » |
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Hi,
I have a RO150, working with mild steel fabrication and processing. Tasks I would like to do are
- weld seam removal
- blending
- taking out scratches
Could you please recommend which family of abrasives to use for this application?
Thanks!
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Brice Burrell
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Location: Pittsburgh, PA, USA Member Since: Mar 2007
Posts: 6210
Remodeling Contractor
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« Reply #1 on: July 25, 2012, 03:21 PM » |
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I'd suggest you buy a couple of small packs first try out the abrasives. I try Cristal as my first choice, then Saphir as second since it costs more, but it will last longer.
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Sean Ackerman
Festool Dealer
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Location: Yorktown Heights, New York Member Since: Mar 2009
Posts: 1097
Festool Dealer near NYC - 10,000 sq feet!
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« Reply #2 on: July 25, 2012, 03:52 PM » |
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Also see Vlies for finishing that type of material to a matte final product. All RO 150 paper can be found here, easily indexed. |
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Alex
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Location: The Netherlands Member Since: Nov 2008
Posts: 2809
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« Reply #3 on: July 25, 2012, 04:04 PM » |
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When you work on metal I'd go for Brilliant 2 or Granat or Titan 2. Especially Titan is optimised for the automotive sector so I'd figure that works well on metal. No way would I use Crystal or Saphir on metal, they're too sharp and you'll end up scratching the surface a lot. Weld seam removal, I'm no metal worker, but wouldn't that be better suited for a grinder? You don't remove much metal with sandpaper. What's 'blending'? I don't suppose it has anything to do with "Will it blend"  ? |
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SRSemenza
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Location: UNITED STATES (US) Member Since: Jun 2007
Posts: 4004
Finger Lakes Region, NY State , USA
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« Reply #4 on: July 25, 2012, 11:53 PM » |
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Hi, iamps Welcome to the FOG! This might help to some degree Abrasives Guide A new type called Granat is also available. I think Titan 2 is more for the filler, paint and finish on cars than sanding metal. But .....  Hopefully somebody that does what you do , will pop in with some help. Otherwise you get to be the experimenter, buy all the types, and post your results  Seth |
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« Last Edit: July 25, 2012, 11:55 PM by SRSemenza »
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Seth R. Semenza
S. R. Semenza Woodworking
Festool Service 800-554-8741
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Alex
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Location: The Netherlands Member Since: Nov 2008
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« Reply #5 on: July 26, 2012, 05:32 AM » |
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I think Titan 2 is more for the filler, paint and finish on cars than sanding metal. But ..... In the early stages of car body repair you routinely sand down to metal to make the surface as even as possible. Paint on a car is very thin so you're on the metal in no time. Of course you don't sand out the scratches, you just fill them up with filler later on. But because of this, sandpaper used in the automotive industry is optimised for working with metal.  Watch pics of a repair in progress here. |
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Shane Holland
Festool USA Employee FOG Administrator
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Location: USA Member Since: Jan 2007
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« Reply #6 on: July 26, 2012, 09:01 AM » |
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Sorry I didn't respond sooner. I have a limited knowledge of metalworking applications and wanted to consult with someone before answering.
Saphir was my initial thought for coarse sanding and was confirmed by a colleague that it would be best for heavy duty use. I've used it on metal once before quite successfully. Granat, Titan or Brilliant would be good for finer sanding.
A grinder or the Festool RAS 115 would be better suited for knocking down welds than the RO 150.
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Dovetail65
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Location: UNITED STATES (US) Member Since: Feb 2008
Posts: 3864
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« Reply #7 on: July 26, 2012, 01:26 PM » |
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One general comment about the Festool abrasives.
I have tested almost everything I could find and I always come back to the Festool paper. I have read in a few places(amazon, other forums)it is a waste of money and forcing people to use the Festool abrasives cost to much. IMHO, that is totally wrong.
In my experience I spend less overall using the Festool abrasives. And for several of my applications the Festool paper is the only paper that works!
For my work, Cristal is my favorite abrasive.
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« Last Edit: July 26, 2012, 01:30 PM by Dovetail65 »
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The one who says it can't be done should avoid interrupting the person doing it.
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Alex
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Location: The Netherlands Member Since: Nov 2008
Posts: 2809
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« Reply #8 on: July 26, 2012, 03:03 PM » |
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One general comment about the Festool abrasives.
I have tested almost everything I could find and I always come back to the Festool paper. I have read in a few places(amazon, other forums)it is a waste of money and forcing people to use the Festool abrasives cost to much. IMHO, that is totally wrong.
In my experience I spend less overall using the Festool abrasives.
Couldn't agree more. I think Festool sandpaper delivers excellent value for the money making it one of the cheapest available giving the best result. And for several of my applications the Festool paper is the only paper that works!
I wouldn't go as far as saying that, there are some good alternatives, at least where I live. SIA and Flexofit come to mind. 3M is also pretty good. But none of their lines are as extensive as Festool's. |
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Dovetail65
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Location: UNITED STATES (US) Member Since: Feb 2008
Posts: 3864
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« Reply #9 on: July 26, 2012, 03:27 PM » |
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Well I said for my applications, which really are pretty rough. I actually found that for me and the way I personally work, for a specific application I do daily, the Cristal is the only paper that works without having to use more than 2 times the amount of paper of any other type I have tried. And I feel I have tried them all(at least up until 4 months ago). Honestly the way I do some things(namely flattening my inlays) with the RO150 and the Cristal paper, many here might laugh or say I was nuts, but it works for me. People ask all the time I how keep the different woods so flat and perfect, well its kind of my thing, but I can tell you if not for the Cristal paper and the RO 150 my technique would never work.
I am always willing to try something new though. Still, I have about a years worth of Cristal(I use 10 sheets a day in a good week), so for now I am pretty happy.
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« Last Edit: July 26, 2012, 03:52 PM by Dovetail65 »
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The one who says it can't be done should avoid interrupting the person doing it.
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Alan m
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Location: Ireland Member Since: Aug 2010
Posts: 2998
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« Reply #10 on: July 26, 2012, 07:30 PM » |
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One general comment about the Festool abrasives.
I have tested almost everything I could find and I always come back to the Festool paper. I have read in a few places(amazon, other forums)it is a waste of money and forcing people to use the Festool abrasives cost to much. IMHO, that is totally wrong.
In my experience I spend less overall using the Festool abrasives. And for several of my applications the Festool paper is the only paper that works!
For my work, Cristal is my favorite abrasive.
i was shocked at the price of the festool paper whe i first bought my ro150(1sr festool sander i bought) . i was comparing qty being used to the amount of paper i used on my dewalt 5" ro sander. but when i used the ro150 for a while and realised the paper lasted multiple times longer i was thrilled. i have sanded pieces of wood to show them how great the sander is using just on 80 grit sheet to take the piece from sawmill rough to smooth it a few seconds. amazing. the dc is what saves it so much. the dust isnt left there longenough to over heat the paper or stick to it. |
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now
ts 55+2 1400 rails+ 1 lr32 1400 rail, domino+assortment systainer+ domiplate, ct 22 with boom arm+home made thien baffel, lr32 set, rotex 150, home made MFT,home made work center, 6 t locs for other tools, of2000 , ro 90, mft 800, trion , ls 130
wish list
of 1400, MFT 3,, even more t locs for other tools
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
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