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  #1  
Old 01-21-2020, 09:51 AM
Uniweld Uniweld is offline
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Default Uniweld: CA550 Cutting Torch Cleaning Question

I have a question in regard to a Uniweld CA550 cutting torch I bought on eBay. The seller told me the following after I asked him how the unit came to be so nice and shiny:

Question: How was this unit bead blasted (glass, soda, walnut shells, etc)? Also, who did the bead blasting and polishing?
Answer: I do all my own cleaning and restorations. After taping off the holes on the unit, I bead-blast with 80 mesh black diamond glass and then polish with a Dremel brass abrasive head. Then follow up with brass polish.

Question: What type of brass polish do you use?
Answer: I almost always use Brasso and then clean the residue off with brake parts cleaner.

So my question to the experts here - Is there any danger to using this torch after I receive it based on the cleaning process? I have looked at the SDS for Brasso and it seems to have several different formulations over the years, some with hydrocarbons and petroleum distillates.

I would think that by now any "leftovers" would have long since evaporated away, but I just don't want to take any chances. Would dunking the whole torch in Isopropyl alcohol (90%) and giving it a few days to evaporate be a suitable answer?
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  #2  
Old 01-21-2020, 10:19 AM
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digger doug digger doug is offline
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I don't like "junk polishers" .

They stand out clear as a bell at flea markets.

These guys must have wire wheels & polishing bonnets all over the place.

I avoid them at all cost's for these reasons...

Your new here, please fix your location so we can better advise you.

Also, why this particular torch ?
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  #3  
Old 01-21-2020, 12:48 PM
Uniweld Uniweld is offline
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Consider changing your username, or maybe the website you're linking to--or contact the owner of SFT for our advertising rates...



What happened to my post with the explanation of what I trying to find out? With the links and such?

Last edited by Uniweld; 01-21-2020 at 03:51 PM. Reason: I feel like you're selling something I ain't buying...
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Old 01-21-2020, 01:19 PM
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digger doug digger doug is offline
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I would not go with the alcohol, are there rubber O-rings in there ?

HP oxygen ?

It should be regulated down to probably 40 psi max at the handle.
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  #5  
Old 01-21-2020, 01:22 PM
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LKeithR LKeithR is online now
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Smells a bit fishy to me...
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Keith

Measure twice and cut once...or...wait, was that the other way around?
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  #6  
Old 01-21-2020, 03:11 PM
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dubby dubby is offline
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Quote:
Originally Posted by LKeithR View Post
Smells a bit fishy to me...
Uh huh... I told ya I was suspicious
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Wade's Custom Kydex
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  #7  
Old 01-21-2020, 03:35 PM
Uniweld Uniweld is offline
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Well, I haven't received the cutting torch as of yet. In the pictures, it doesn't seem to have any o-rings visible, which is a problem where the cutting attachment attaches to the handle assembly ( I will have to have it replaced).

Yeah, the name is not the best - but I was registering and all the names I picked out were already used. Such is life when you are late to the game!

Anyway, my main concerns are his use of Brasso, and then cleaning his handiwork with brake cleaner. How should I proceed to make sure I don't attach this thing to my low side (regulated side) O2 and have something go wrong?
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  #8  
Old 01-21-2020, 03:53 PM
Uniweld Uniweld is offline
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This is the cutting torch I bought:

https://www.ebay.com/itm/Vintage-Uni...rdt=true&rt=nc

Why is everyone suspicious and of what?
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  #9  
Old 01-21-2020, 04:04 PM
Uniweld Uniweld is offline
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Okay, instead of 90% alcohol should I use this:

CRC Lectra Clean
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  #10  
Old 01-21-2020, 04:12 PM
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GWIZ GWIZ is offline
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Quote:
Originally Posted by Uniweld View Post
So my question to the experts here - Is there any danger to using this torch after I receive it based on the cleaning process? I have looked at the SDS for Brasso and it seems to have several different formulations over the years, some with hydrocarbons and petroleum distillates.

I would think that by now any "leftovers" would have long since evaporated away, but I just don't want to take any chances. Would dunking the whole torch in Isopropyl alcohol (90%) and giving it a few days to evaporate be a suitable answer?
We only have one member that can answer your chemical question, lets see if he shows up.
https://en.wikipedia.org/wiki/Brasso#Ingredients
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