Question Oppo

"S65" (granthp) 07/17/2016 at 13:13 • Filed to: Paint

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What’s a good sander? I need to sand the paint off of a bicycle frame.

jminer > S65 07/17/2016 at 13:17

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With that small a radius tubing and many tight angles you’ll have to do a lot of hand sanding anyway. You’re probably better off just hand sanding the whole thing.

crowmolly > jminer 07/17/2016 at 13:20

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I agree, hand sanding will probably be best for tubing.

You may actually want to use chemical paint stripper first and then use a scraper/scrubby pad/steel wool to clean off the gunk. Finish sanding by hand.

sm70- why not Duesenberg? > S65 07/17/2016 at 13:21

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Jake - Has Bad Luck So You Don't Have To > S65 07/17/2016 at 13:22

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Much like “what’s the best low maintenence girlfriend?” The answer here is “your right hand”

Flies With Thunderbirds > S65 07/17/2016 at 13:29

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60 grit followed by 120 grit sand paper. You’ll probably have to snap by hand because of the radius of the frame. If you really want a power sander, I would suggest a DeWalt dwe6423K

Steve is equipped with Electronic Fool Injection > S65 07/17/2016 at 13:30

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petebmwm > S65 07/17/2016 at 13:38

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Just use paint stripper, stop playing around, sand the little thats left afterwards.

Berang > S65 07/17/2016 at 13:39

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1st: why are you sanding the paint off? If you’re repainting the frame, you don’t want to go to bare metal because no primer is going to stick to the frame like the original baked on paint. Only get it all down if powder coating or you have some plan that requires bare metal.

2: just use sand paper if you need to scuff up the paint. It’ll be easier than using a power sander. If you need to remove all the paint, media blasting will be the easiest way to go.

aberson Bresident of the FullyAssed Committe > sm70- why not Duesenberg? 07/17/2016 at 13:42

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I’m still not convinced bernie and Colonel aren’t the same person.

The Snowman > Steve is equipped with Electronic Fool Injection 07/17/2016 at 13:53

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This is the correct answer.

Levitas > The Snowman 07/17/2016 at 13:58

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Seconded, by far the easiest solution.

Frenchlicker > Steve is equipped with Electronic Fool Injection 07/17/2016 at 13:58

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That's what I thought too.

unclevanos (Ovaltine Jenkins) > sm70- why not Duesenberg? 07/17/2016 at 14:04

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The top 1% of the Sanders control 99% of sander use.

PotbellyJoe and 42 others > Berang 07/17/2016 at 17:17

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This.

If you absolutely have to use a power too, get an attachement for your drill/Dremel that will do it. There are some awfully tight spaces/angles on a bicycle.

shop-teacher > S65 07/17/2016 at 18:48

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If you’re just going to repaint it, just do a light scuff of the old paint, and prime/paint on top of that. If the paint must come off, then I’d use a chemical strippe, scraper, and scotch brite pads.

Or an angle grinder and wire wheel.

Die-Trying > S65 07/17/2016 at 23:25

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sand paper and a shoestring........... get a strip of sandpaper long enough, to go completely around the tube plus just a little, and get a section of shoestring, to get a wrap, or two around the paper at the ends, and with up and down strokes, saw at the lace......... it spins the paper.

S65 > Die-Trying 07/17/2016 at 23:26

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I’ll try this

Die-Trying > S65 07/17/2016 at 23:33

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i use it on all my round sanding needs........ or when i need to clean up a crankshaft (super fine grit)

Die-Trying > S65 07/18/2016 at 00:07

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get it figured out?

S65 > Die-Trying 07/18/2016 at 00:33

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I haven’t sanded it yet. I’m doing that tomorrow?

BayAreaMiataBoi > S65 07/19/2016 at 01:16

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I would use aircraft aluminum paint stripper first, because it can lift the top layers of paint, and even if it goes through the original primer, it will probably not destroy whatever material is under the primer.
Just leave it on long enough to lift the paint. Be patient. . .

BayAreaMiataBoi > BayAreaMiataBoi 07/19/2016 at 17:23

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Oh, and with a little more thought, I would precede any paint stripper with an acetone wipe-down to remove grease and wax (and maybe decals) before using the paint stripper. Followed by Prepsol or equivalent for a rinse (kinda like BraKleen for paint).
Because when I did my first bike repaint, I did not strip off the wax and grease first, and the aircraft aluminum paint stripper results were really uneven.
Maybe that is why I had to be so patient! ;^)