JBWeld on brass? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davepl · 06-29-2014, 09:12 PM

It's actually SteelStik, but same idea. In this case its a two-part putty you combine and it hardens to some weird machinable metal.

Anyway, I apparently have a pinhole leak on the neck of my brand new LMC radiator, which is probably our of warranty since it's been more than a year anyway. That's the problem with long builds...

So I used some of the putty, but when removing the paint it reminded me that I was working with brass. Anyone know if I should expect it to work and hold?

Thanks,
Dave

1972RedNeck · 06-29-2014, 09:14 PM

I have done it and it works. It always seems to eventually fail though. On a build as good as yours, I am of the opinion that you should fix it right (solder).

**HIGHWAY BY THE SEA** · 06-29-2014, 09:35 PM

JMHO, but I would rather use a band aid to fix metal than J.B. Weld (N.O. Held). That JUNK has NEVER held anything I ever repaired with it, including a hole in the plastic radiator on my old S10. Might as well use bubble gum because it will hold better. But seriously, I would take it to a welding shop and have them braze the hole over with melted brass.

**TBONE1964** · 06-29-2014, 09:41 PM

Clean it like a surgeon and solder it. Paint and call it good.

06-29-2014, 09:12 PM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	JBWeld on brass? It's actually SteelStik, but same idea. In this case its a two-part putty you combine and it hardens to some weird machinable metal. Anyway, I apparently have a pinhole leak on the neck of my brand new LMC radiator, which is probably our of warranty since it's been more than a year anyway. That's the problem with long builds... So I used some of the putty, but when removing the paint it reminded me that I was working with brass. Anyone know if I should expect it to work and hold? Thanks, Dave __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

06-29-2014, 09:14 PM	#2
1972RedNeck Registered User Join Date: Jan 2011 Location: Townsend MT Posts: 1,725	Re: JBWeld on brass? I have done it and it works. It always seems to eventually fail though. On a build as good as yours, I am of the opinion that you should fix it right (solder).

06-29-2014, 09:35 PM	#3
HIGHWAY BY THE SEA Senior Member Join Date: Nov 2012 Location: BY THE CAROLINA SEA Posts: 922	Re: J B Weld on brass? JMHO, but I would rather use a band aid to fix metal than J.B. Weld (N.O. Held). That JUNK has NEVER held anything I ever repaired with it, including a hole in the plastic radiator on my old S10. Might as well use bubble gum because it will hold better. But seriously, I would take it to a welding shop and have them braze the hole over with melted brass. __________________ FRANKENTRUCK 1981 Chevrolet C10 Shortbed Stepside GRANDTRUCK 1968 Chevrolet C10 Stepside Longbed http://67-72chevytrucks.com/vboard/s...d.php?t=584617 PROJECT JIGSAW 1967 GMC C3500 GREAT WHITE 1986 Blazer M1009 454 engine w/700R4 transmission gas conversion

06-29-2014, 09:41 PM	#4
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	Re: JBWeld on brass? Clean it like a surgeon and solder it. Paint and call it good. __________________ Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C



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