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Ohhh, liking my bench grinder/buffer

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Ohhh, liking my bench grinder/buffer

Old 02-04-11, 01:28 PM
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triplebutted
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Ohhh, liking my bench grinder/buffer

I love this thing. Best $25 bucks on CL I spent.
My next project is polishing this:



If I'm going to use sandpaper on this bad boy to get to the bare aluminum, what grit should I use?
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Old 02-04-11, 01:31 PM
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It's a tough choice: big grit, fast, big scratches to get rid of....small grit, slow, small scratches to get rid of.

If it's anodized get a can of Easy-Off and do it chemically....then you don't have to worry about sanding it just to get the black off.
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Old 02-04-11, 01:46 PM
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Good thinking. I'll try easy off first and see if that'll work.
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Old 02-04-11, 01:59 PM
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Hit it with some Easy Off oven cleaner first, see if that removes the coating, if no try paint removed. It may just take the bulk of the black coating off. Easy Off will remove most anodizing and even some powder coat paints. It's easier to polish up. I did a set of red cranks, I stripped the red off, then went over it with fine steel wool, then over to the buffer with some fine polish.
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Old 02-04-11, 02:02 PM
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This is good - Hope to see what happens - Saw one guy heat one up in the fire place then sand lightly and pollish - Wonder what damage the heat may have done but it did come out well...
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Old 02-04-11, 02:04 PM
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If you bake anodizing, it turns a very cool brown with lots of character. Not sure I'd do it with alloys on bikes, but I have done it with the bodies of paintball markers.

This is a totally off topic reply in response to the above, by the way.
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Old 02-04-11, 06:42 PM
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Just saw this website. I think my problem is not leaving the Easy Off on long enough. I tried 10 minutes but maybe some anodizing takes longer than others. Here's a site that used Drano. Scroll down to the middle

https://bmxmuseum.com/forums/viewtopic.php?pid=2257070
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Old 02-04-11, 06:50 PM
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Holy Crapola!!!!!
I do have cleaning gloves. I think I'll get an extra pair. And use only tongs. Dang man!
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Old 02-04-11, 06:51 PM
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Oh, wait, now I'm wondering if I bought the Eco Friendly Easy Off. I got the blue can. Hmmmmmmm
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Old 02-04-11, 07:28 PM
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yes... be very careful with the oven cleaner.
if you're spraying outdoors, it only takes a gust of wind in the wrong direction to make you feel a slight burning on your skin.
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Old 02-04-11, 07:37 PM
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I quit using Easy Off and just got lye crystals. It's REAL easy to mix it strong enough to cause bare aluminum to bubble. Don't ask how I know this. Also, that pic of the hand above? I got a light case of that, it;s easy, be careful.

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Old 02-04-11, 10:44 PM
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Wake up call!

Guys, you want to strip anodizing easily, safely and for less money (and less mess) than Easy-Off? Go here:

https://www.jestcoproducts.com/index....d&productId=37

At $16.00 a bottle, it sounds expensive until you realize how much stuff you can strip with it. It took me almost a year to go through one bottle and I was stripping everything I did drillium on. One TSP per gallon of water (I think; mixing instructions come with the product).

Mix it in a plastic container, using warm water. Once it's in solution, drop your parts in. Once the part has either turned a uniformly dull alloy color - or uniformly black/dark grey, pull out of the solution (I use tongs/hemostats - this stuff will chemically burn just like the lye-based removers) and rinse off with lukewarm water, using fine steel wool with Dawn or similar dish washing detergent to completely remove the black/dark grey residue. You can leave it in for a good 30 minutes without worrying about pitting the alloy. Black anodizing usually takes a little longer to remove than the silver type, but even that stuff comes off amazingly quickly.

** Important! Have some ventilation when you're doing this. I mean, you can do it in your garage with the door closed, but don't lean over it and breath deeply if you know what I mean...

At almost $5.00 a can for EO, and the subsequent mess, this stuff pays for itself first time out. Give it a try and I personally guarantee you will never go back.

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Old 02-04-11, 11:42 PM
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Cool, thanks for the tip. I'll go through my Drano stuff (Zed brand). Worked quite well tonight. I'm hooked.
I have a Gios to restore. The only bike I saved from my 80's racing. I wanna get good at polishing before I do it to that bike.

Can you save that Jestco stuff once it is mixed? Wondering how many parts say 1 gallon would go through.
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Old 02-04-11, 11:49 PM
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Thanks DD. I think I might order a bottle.
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Old 02-04-11, 11:58 PM
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^ The best thing to do is plan ahead and get a good batch of parts ready to be done in a relay fashion. I use different plastic pans for various parts: crankarms need a decently sized pan, and most parts require at least a 2" depth to ensure complete immersion. For batches, I use a Rubbermaid pan that is about 3" deep x 8" wide x 14" long.

What I usually do is drop in front and rear derailleur body, jockey wheel cages and a brake lever pair. Once the anodizing strip is done with those, I remove them and then drop in a crankset and pair of brake caliper parts; once I added a pair of scraped Superleggeri pedals the second go-around. While I was rinsing/cleaning off the residue from the first parts the second set was de-anodizing. By the time I finished with the rinsing/cleaning, it was time to remove/rinse/clean the second set.

So, to recap: a couple of tablespoons or so stripped a complete brakeset, two derailleurs, crankarms and a pair of pedals. Two tablespoons doesn't even dent the amount in the bottle.

How long would that take with Easy Off? I know from experience one has to spray Easy Off a couple different times to get all the anodizing off because the foam dies down before all the anodizing is stripped off - especially on cranks and brake levers. Plus, is it messy or what? And you never get all the Easy Off out of the can - I used to go through cans and cans of it before I picked up the Jestco stuff. I've been a convert ever since a fellow collector turned me onto the stuff. Anything else truly pales in comparison.
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Old 02-05-11, 12:12 AM
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boring.

where are the before/afters?
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Old 02-05-11, 12:22 AM
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^ Fair enough - if you would like to peruse "before and afters", it just so happens somebody else I turned onto this stuff has already done that for me. Check out this Flickr handle: amoll68. He has plenty of pics, although his vessels for the immersion ran the gamut from aluminum pans (don't use those!) to a plastic bag!

For final versions, after polish, you're invited to check out my own Flickr: Styleman27. I think the results speak for themselves.

Best of all, going by your avatar tag line, this stuff should be right up your alley

DD
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