Restore 510 tables? Black discoloration.

fgrule · Post by **fgrule** » Sat Aug 04, 2012 7:50 am

I just purchased a 1985 510 and am starting to clean it up, do alignment,etc. I've done a few 500s, so I know most of the basics.

My problem is what to do with black discoloration on all of the tables of the 510. I can't seem to make a dent in it. The discoloration seems to have penetrated into the metal much deeper than on the model 500s I've done.

Is some heavy-duty wire brushing the best bet? Or sanding it down? Chemicals?

Thanks!

Fred

dusty · Post by **dusty** » Sat Aug 04, 2012 10:07 am

fgrule wrote:I just purchased a 1985 510 and am starting to clean it up, do alignment,etc. I've done a few 500s, so I know most of the basics.

My problem is what to do with black discoloration on all of the tables of the 510. I can't seem to make a dent in it. The discoloration seems to have penetrated into the metal much deeper than on the model 500s I've done.

Is some heavy-duty wire brushing the best bet? Or sanding it down? Chemicals?

Thanks!

Fred

I don't know how to remove the discoloration. I don't even know for sure what it is. In fact, we don't even know if your discoloration is the result of the same thing as is the discoloration on my tables.

However, if it is anything like mine - I suggest that you are going to have to live with it unless you have the facility to mill the table top.

I have cleaned and polished and even used some abrasives without success.

fgrule · Post by **fgrule** » Sat Aug 04, 2012 10:52 am

dusty wrote:I don't know how to remove the discoloration. I don't even know for sure what it is. In fact, we don't even know if your discoloration is the result of the same thing as is the discoloration on my tables.

However, if it is anything like mine - I suggest that you are going to have to live with it unless you have the facility to mill the table top.

I have cleaned and polished and even used some abrasives without success.

That may well be the case (live with it). What I have tried so far (mild abrasives, aluminum cleaners, etc., has failed to help much).

Thanks, Fred

JPG · Post by **JPG** » Sat Aug 04, 2012 1:55 pm

fgrule wrote:That may well be the case (live with it). What I have tried so far (mild abrasives, aluminum cleaners, etc., has failed to help much).

Thanks, Fred

This may be 'wishful thinking', but I have used citrusstrip to clean up aluminum tables. Like Dusty said, we do not know what yer black stuff is, but if paint or plain old oxidation, citrusstrip may help.

MickyD used scotch pads on his and his tables look great!

jppickett · Post by **jppickett** » Sat Aug 04, 2012 2:01 pm

Go to a welding supply store and try a product called Arcal Weldo

JPG · Post by **JPG** » Sat Aug 04, 2012 2:30 pm

jppickett wrote:Go to a welding supply store and try a product called Arcal Weldo

Use with caution!!!

http://www.arcalchem.com/Pages/WeldO.html

http://www.arcalchem.com/Anonymous/Weld-O.pdf

fgrule · Post by **fgrule** » Sat Aug 04, 2012 5:30 pm

JPG40504 wrote:Use with caution!!!

http://www.arcalchem.com/Pages/WeldO.html

http://www.arcalchem.com/Anonymous/Weld-O.pdf

The black is not paint. I'd say it's gotta be oxidation. I agree, I'll have to say no to the welding product (hydrofluoric acid is nasty stuff). I may try some phosphoric (already have it). Green Scotchbrite wouldn't touch it.

Anyone ever use Aluminox?

Fred

fredsheldon · Post by **fredsheldon** » Sun Aug 05, 2012 9:57 am

It's kinda like the warts on my face. I can spend a bunch to have them removed or just learn to live with them. It won't change who I am or how I act or perform, it would only serve to made me look better. And at my age, that's not important anymore