Floor sheetmetal thickness

[JOLENE_THE_RANGER]

Always floored nailed it. It’s in fact 18 gauge!

Some people use brakekleen or like products to clean metal before welding. Dumb dumb dumb idea. A da sander or scotch brite is all it needs if it’s dirty


Sent from my iPhone using Tapatalk

 

[alwaysFlOoReD]

BraKleen is one of those products that can be very useful, but also very dangerous. It's not "normal" to use brakleen, I was just passing on knowledge that is seldom known about, just in case.

I buy BraKleen by the 5 gallon bucket. I don't use it in enclosed spaces. I wear nitrile [sp] gloves.

 

[rangerenthiusiast]

Always floored nailed it. It’s in fact 18 gauge!

Some people use brakekleen or like products to clean metal before welding. Dumb dumb dumb idea. A da sander or scotch brite is all it needs if it’s dirty


Sent from my iPhone using Tapatalk

Hey, great to know about the gauge - thanks!! I also bought a digital micrometer today, just so I don’t have to keep bothering folks about such things. Had to go to four different stores before I found one, which seemed odd.

As for cleaning, I had assumed that if I hit all edges of all surfaces to be welded with a grinder and (if pitted but still solid), a wire wheel, that would get things clean enough. If not, could I just use some rubbing alcohol as a quick degreaser? While I’m on the subject, I’ve always wondered how people protect the exposed (ground and cleaned) metal that’s on the inside of a weld where a double wall exists. I’m assuming that after a car is welded up in the factory, small holes are drilled into such areas so that undercoating can be sprayed or injected into such voids, in order to keep the vehicle from rotting from the inside out at the site of the weld. Does that jive with peoples’ experience?

I know, I know. Too many questions, not enough worky.

 

[alwaysFlOoReD]

A grinding disc will work, but a flap-wheel will work better. It leaves a smoother finish and doesn't remove metal as quickly. 80 grit or 120 grit. I use a wire wheel to get rid of the majority of the rust then use a flap wheel. As for hidden areas I use a weld thru primer. The weld thru primer I use is zinc based. It comes in a aerosol can.