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12th June 2023, 05:15 PM #1Senior Member
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Mesh-Backed Sandpaper vs Normal Sandpaper
Hi All,
I'm about to embark on the repair of a rusty steel-frame casement window. I need to strip it back to bare metal so that means removing a lot of paint and rust with my little GMC hand sander.
Over at The Sandpaper Man they sell mesh-backed sandpaper. Just wondering if anyone has any thoughts on this stuff vs normal sandpaper. For what I'm going to do, which would work better?
Cheers,
Chris
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12th June 2023 05:15 PM # ADSGoogle Adsense Advertisement
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12th June 2023, 09:43 PM #2GOLD MEMBER
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Use an angle grinder with a cupped wire brush... and safety goggles.
Experienced in removing the tree from the furniture
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12th June 2023, 09:59 PM #3Taking a break
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...and a mask. A full face shield is probably a good idea too
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12th June 2023, 10:33 PM #4Senior Member
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13th June 2023, 12:21 AM #5GOLD MEMBER
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mask the area off and use a compressor and sand blast it off.
for reference the mesh stuff just helps with dust extraction not cutting ability
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13th June 2023, 10:37 AM #6GOLD MEMBER
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Use this with angle grinder
Access Denied
The purple 3M one cuts SUPER fast and last a long time. I have tried other ceramic grained versions of these - eg the smith and arrow - and it was no way near as efficient. Wasn't worth the cost saving. In my experience much faster than wire brushes
I would imagine using a meshed sand paper it will destroy the paper. mesh papers are a bit fragile
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13th June 2023, 12:38 PM #7
Chris
The risk with all the above methods is that if you inadvertently touch the glass with the sanding pad or the wire brush then you will irreversibly scratch the glass. This is another way of saying that my hands are not steady enough to use those methods.
Personally, I would try a chemical strip first - a gel type paint stripper - followed by a light sand with a detail sander. It is really important that you get the primer coat on quickly after the final sand, before the next generation of rust starts.
The other option is to use a tungsten scraper. This should be quite fast on the flat areas, but a little fiddly on the edges. Tungsten is harder than glass so you would have to be really careful not to scratch the glass.
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13th June 2023, 12:42 PM #8Senior Member
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13th June 2023, 12:43 PM #9Senior Member
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13th June 2023, 12:45 PM #10
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13th June 2023, 12:54 PM #11Senior Member
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13th June 2023, 01:33 PM #12Senior Member
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13th June 2023, 02:25 PM #13GOLD MEMBER
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I dont, I would assume the green would be less abrasive. Do you have a link?
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13th June 2023, 02:34 PM #14Senior Member
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14th June 2023, 12:53 PM #15Senior Member
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If I get a few of the 3M Clean & Strip discs, any recommendations as to the size - they make a million different ones and they seem to be hard to get so I'll have to order them
Also, I don't own a grinder so I'm planning on getting a small one for the job - probably a BOSCH 750W 100mm Angle Grinder GWS750100. If I get one of these it will limit the disc size to 100mm (?) - any problem with that?
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