whats the best way to rust proof a fresh weld so that rust doesn't accure in years to come eg etch primer, fishalean, spraytar, etc.
cheers

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Cheers Dan

FIRST COMES THE MONEY, THEN COMES THE POWER, THEN COMES THE WOMEN.!!

Where is the weld situated, ie is it under the car or on something detachable for example?.

It's hard to say without knowing what environment it will be exposed to. Say it were a seat mount then 1 coat etch primer and 2 coats of topcoat would probably be adequate.

Daniel

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the welds are on the rear beaver panel (bumper seam), rear driver side window rubber seam, floor panes, exaust tunnel.

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Cheers Dan

FIRST COMES THE MONEY, THEN COMES THE POWER, THEN COMES THE WOMEN.!!

I've been using POR-15. Not cheap though. About $100 for a litre + metal ready treatment (essentially rust converter).

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"Life is not like a box of chocolates... it's more like a jar of jalapenos. Whatever you do today, may burn your arse tomorrow."

just clean it up and etch prime it.Then prime and top coat.

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You also need to be carefull that you don't actually CAUSE rust with your weld.

I read a great article about welding a while back. It said to snip the end of your MIG wire off before you start every weld, as the tip is oxidised or something from finishing the previous weld. If you don't, you could push oxidisation into your weld, which will start to rust pretty soon after.

Something like that anyway.....

por-15 would be good but a bit exspensive i've got some etch primer left i'll use that

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Cheers Dan

FIRST COMES THE MONEY, THEN COMES THE POWER, THEN COMES THE WOMEN.!!

GT that makes sence actually i'll do that cheers

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Cheers Dan

FIRST COMES THE MONEY, THEN COMES THE POWER, THEN COMES THE WOMEN.!!

CRC make a product called "Zinc It", its a zinc spray that you can put on the welds or other bare metals to protect it from rust & oxidisation etc

Por15 is great as it can also cover any pinholes that might be left and prevents the rust from forming again.

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Many moons ago when I did my welding course we were shown a "galvanizing Stick" It was mainly for welding Gal steel but would work on anything I guess. You ran your weld, chip off the slag and while still hot you rub the stick along the weld. It was a bit like solder but different. It melted and ran a galvanized looking coat over the hot area.

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David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

Id forgotten about them. Might get a pack and keep them in the cupboard

I wire brushed mine so I got all the rubbish and oxide off them, sprayed some cold gal, etch primed them and then added some sealant over the top.

Cold gal is probable the easiest way and works well.

where would i get cold gal from and what is it

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Cheers Dan

FIRST COMES THE MONEY, THEN COMES THE POWER, THEN COMES THE WOMEN.!!

You should be able to buy it at any Good hardware store for about $15 - $20 per can...

Its a quick drying undercoat type spray used to cover welds on galvanised steel or any steel for that matter.

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Santo

"The Lone Ranger"
HI-HO Silver......AWAAAAAY!

I cold galved the whole underside of my mini. It was a bit pricey though just under 20 beans for a can. I dont know that it is a great deal better than a good etch primer but judging by the amount of rust that was in my mini I wasnt leaving much to chance. Theres also this stuff called zinc rich primer/weld through primer. Its a load of crap, after spraying it everywhere I realized that its not quite as weld through as the packaging suggested. So i ground it off and cold galved it afterwards.

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