J B WELD

[Dusty B]

Has anyone had any experience with applying JB Weld over bronze welding? Have a cracked block that was repaired years ago with brazing that is beginning to seep anti-freeze! Would like to patch over it before repainting. If anyone has other alternatives/suggestions would appreciate that too. The weld has held for 40+ years so really can't complain! Thanks for any comments

[Urbish]

If it isn't too much of a pain, I'd clean the crack and re-braze it. JB weld will hold for a while, but may pop loose after a lot of thermal cycling. It also will do nothing to keep the crack from propagating.

[tmays]

Worth a shot. I haven’t applied any over a bronze weld, but have applied some over a long crack in my bolster. Been there for about 10 years now and no problems. Get it really clean before applying and let it fully cure before operating

[Gary Dotson]

I too, think it’s worth giving it a shot. Make sure it’s very clean and if the brass is really smooth, sand a little texture into it.

[KETCHAM]

We use the stuff here at the dealer on stuff ....I have used it on lots on my own stuff...clean and let cure!!!!!!!

[Clemsonfor]

I'd use a wire wheel or grinder or sand paper to rough it up. Then I would clean it with a etone or brake clean and then follow the directions on which ever version you get. It can withstand the heat. If your worried it will be too hot they make a version that's a high temp one and a bit different than the normal two part one that you can use on exhaust manifolds or heads.

[SONNY]

The antifreeze will eat thru from the back side in time but for fix-n-flip, go for it!