Landracing Forum
Misc Forums => How To Section => Topic started by: Rchop on January 25, 2010, 01:49:27 PM
-
I'm sure most of you work in the shop like I do. My paint and chemical locker is full of various paints, solvents and cleaners I have used on various projects. It's easy to become complacent when using these chemicals, but here's an article that should wake you up to the dangers of not being aware of what you are using...
http://www.brewracingframes.com/id75.htm
-
Many......many thanks for posting........we all at one time use brake-cleaner......................................
-
I supervised all the vocational shops at 25 high schools and 3 Vo-Tech Centers in a large public school system and provided vocational instructors with all kinds of shop safety training.
Now retired, and knowing better, I can see myself doing the same thing Brew Dude did with the new and different chemical. Not knowing may cause you to pay a big price.
This is a good wake up call on chemical safety and reading the safety label even if you are in a hurry.
The older I get the more I read the food labels at the grocery store for health reasons. Reading workshop chemical labels is a "health" issue too. Perhaps more important?
Thanks Rchop
-
R-22 in the atmosphere injested by a propane forklift also produces phosgene gas. You can see it as a blue haze in the air. Not sure about concentration, maybe that's been my problem for years.
-
Lots of bad stories start with,,,I was in a hurry when...
Well, I was in a hurry when I sprayed the brake clean on to my hands and gave them a quick wipe with a shop towel. I then picked up my battery powered Makita drill driver, pulled the trigger and PUUF! My hand was ON FIRE! I dropped the drill and wiped it with my other hand and ZOWIE! Now they're BOTH ON FIRE! A couple of quick shakes and a sissy scream and it was out and all over. It was a freak thing that happened SO fast, it didn't have time to burn me,,,,just stain my trousers.
RICK
-
I did the same thing while welding up the body seams on an E Type Jaguar that was being built up for road racing. I started welding a couple of days after the cleaning and almost immediately felt like my lungs were being ripped out. Luckily there were no lasting consequences. I don't even think of using brake cleaner for anything that's going to be welded now. Life's too valuable.
Pete
-
Thanks for the heads up!! I 've had some pretty sickly feeling days and difficult breathing after welding freshly cleaned parts. Maybe that where I got my dry cough that never goes away.
-
WOW,, might explain what happend to me this last summer---nothing like this example, just a very mild but presistant lung sensation l now have!!!!!!
-
For cleaning prior to welding either lacquer thinner or acetone work well and leave no residue. Just let them dry before you start welding and keep the containers well away from the process. That extra flickering you see out the side of your helmet is probably the rag you used to apply the cleaning solution and then left on the bench. Guess how I know?
Pete
-
I read this on the H.A.M.B. site a while back. Just getting the electricity in the garage to the point I can practice welding after 25 years away from it. Just gas and stick many years ago. I picked up a cheep wire welder and never could get it to work. Now I have a real welder and a primo feed from the power plant.
So I weld one afternoon and it does not take long to get smokey. I had the door open but... So I am thinking about venting the inside of the car while welding. I have a blower so I wheel it out and have a hard time keeping the draft from ruining the welds (still practice) and making them look like shit (just checking the word catcher).
I also get my half mask respirator out with the activated carbon filters. Wow this works well. It all fits under the welding helmet. Still smoke gets in your eyes.
Well the light goes off so I start cruising the web and ebay. Found a couple of bits and soon will have a full mask (like fire fighters) with a hose to a large charcoal filter (4 in x 12 in cylinder). I will need a fire proof sleeve for the hose and I think I will be able to hook it to an ice chest (cool box) in the summer. Now to figure out standing while welding (wheels and headers) and sitting in the car while welding (on the cage) where to place the canister. For mobile I can hang it from me backpack or waist of course it could sit on the workbench. Sitting in the car I would want the hose to run outside.
Mask came so now I need to find an old filter (or new) to use for attaching the hose. Charcoal canister coming. I will let you know how it works out.
Geo
-
Wow, that's what that funny smell is! Thanks for posting this. You may have saved someones life!
-
Geo - -
IMO, you are not going through too much trouble with your mask respirator. When I build my workshop and start welding again, after 40 years away from gas and stick, I think I'll follow your example.
-
BTW, the newer brake cleaners are marked NON-CHLORINATED and come usually in a green can. These are much safer, and the only ones I buy. Nothing works as sweet as brake cleaner IMO as a general purpose cleaner, so I'm not giving it up.
IIRC, I posted a similiar warning here last year, but it bears repeating. We have a diesel hotrod board and sent out a mass email to all the members to warn them.
-
rChop, thanks for posting this!
-
Its good that you posted this and I was lucky enough to read it. I have been too casual with chemicals for too long. I could have easily made the same mistake.
-
Rchop,
Thanks for posting the warning. Yeah I'm guilty of spraying whatever is handy to clean the metal before I fire up the mig welder, most often brake cleaner. I'll keep some acetone in a spray bottle and dry the piece off with an air gun.
-Scott
-
Acetone will probably kill the pump in a spray bottle. Just pour a little on a rag and use that for cleaning. That way there's little chance of creating an explosive atmosphere either.
Pete
-
Since we're sharing shop accidents, here's 2 from my early years (20ish) in a body shop:
1) cleaning a quarter panel with a thinner rag to spot weld and left the rag on the ground. Began welding 10 minutes later and didn't realize I was squatting over the rag and POOF roasted nuts!
2) while chopping and sectioning a 54 chevy truck the cab was sitting on 4 empty thinner cans. Was inside cab welding and KABANG one can blew up and the whole cab falls sideways with me in it.
As I said I was 20 and dumb.
-
If we`re admitting to dumb mistakes......I once put my finger over the vent on a tea kettle to see how much pressure was in it..................Don`t miss drinking at all :cheers: