21 replies to this topic

[ChopperHarris]

Yep dressed down joints with no gap imperative.

I also use a hot air gun to remove paint from new panels so they don't thin, especially where there are pressing ripples that a grinder etc can effect.

In addition I read yesterday on a hot rod forum, you can clamp a ftattened piece of copper pipe to the reverse of the plug, this dissapetes some of the heat that causes blow holes apparently. Copper wont stick or oxidise like ally might, and effect the weld

[Stu.]

In addition I read yesterday on a hot rod forum, you can clamp a ftattened piece of copper pipe to the reverse of the plug, this dissapetes some of the heat that causes blow holes apparently. Copper wont stick or oxidise like ally might, and effect the weld[/quote]

Yes Ive seen that too. Also seen some magnetic type ones too. I guess it'll be good for putting behind the skin pin holes when welding those up too. Gave my last bit of copper pipe to my Dad, I'll have to sneak it back ;)

[sonikk4]

I have used this method and it works but if doing a lot on flat panels then use Frost Cold Front.

http://www.frost.co....ront-414ml.html

[Stu.]

Thanks Neil. I assume the stuff is re-usable then is it ?

[sonikk4]

Yes it is. If it starts to dry out add a little water. I have about half a pot left so need to get more. Plus we now have discount with Frost.

[castafiore]

Does the Frost stuff really work? We had bad heat warp when trying to weld up some huge holes in my car project's door (rotted around the body kit rail holes) and ended up buying a new door. I bought a chunk of copper on eBay for a fiver which seems to help, but obviously only good for flat bits as it's too thick to go round shapes. Started with thinner bits of copper, but didn't seem to dissipate the heat much.

[sonikk4]

Yes it works. I used it on the Special I welded and no ripples on the quarters or the door skins at all. I will be using it extensively on my clubby as well.

I will be using copper on the floors when I fit the new inner sills as these will be butt welded in place. Not joggled as I did the special.