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Old 11-02-2018, 07:02 PM   #61
hebby
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yes a blow tourch is what i will sort it out with ardonfast !
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Old 11-02-2018, 08:10 PM   #62
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2nd for not using powder coat, it's a very speedy, cost effective way to make something look nice! But get a pin hole and you're in trouble!

Etch primer microscopically bonds to the metal surface and helps to prevent rust creep under the paint, the 2 part yellow stuff is very good and can be used to flood seams etc as being very thin, will creep between joints. A great first, or last line of defense, depending on how you see it!

POR 15 or Rust bullet have both been very good coatings for me, POR has the edge I think, or used to until they removed the Lead? Hard to chip, hard to remove!

On a subframe, proper Galvanising would be perfect, not a show finish. But think about all those unpainted Farm gates, water troughs etc. Last for years out in all weathers
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Old 12-02-2018, 08:30 PM   #63
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when galvanised say a subframe, what happens when it gets chipped ? does it then rust or just the stone chipped area rust ?
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Old 14-02-2018, 09:11 PM   #64
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Interesting question, can't say for sure, although, I have never seen it chip. Not sure it can, I think it "wears" more than chips. Any farm people here?

We had an old galvanized water tank removed from our loft in the 80's. Sat in the garden outside in all weathers, 'til not long ago. No rust, just dull grey, same as it was when it was taken out!

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Old 15-02-2018, 12:00 AM   #65
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Yes I'm semi farm lol galvinize is grate stuff
I have picked up scrap troffs ect and the steel had rotted away but the have skin was still there
Off sorts, well enough to pick it up with,
It's down to the the metal your plating I think
It don't chip coz it's like softish somehow,
If you know what I mean ,
The coating will affect the tower bolt threads and it will try to close round holes slightly but easy to sort that, get a quote as the cost just may be dearer
Than the pot paint,
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Old 15-02-2018, 09:26 AM   #66
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What do you reckon of using POR 15 to paint over a newly powdercoated subframe? I've got a new subframe that has come powdercoated but I've experienced how it degrades pretty quick. Could I just key the fresh powdercoat and apply POR 15 over the top?
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Old 15-02-2018, 09:39 AM   #67
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Yes Monkey, just give it a good key, you can use the por15 metal prep which is kind of an etch primer.

I had a rear subframe zinc coated years ago, the guy doing it said he wouldn’t do another, it was a nightmare to get into all the corners and took him several coats to get it acceptable.
I have a rear subframe that I’ve built up ready to switch over, I bought it off another forum and the lad worked for a galvanisers, he’d had it galvanised and looked pretty cool to be fair, but given I’m supposed to be keeping the car standard looking I have painted it with POR15 so it wouldn’t stand out.


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couldnt be bothered to stretch that far to pull it out.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 15-02-2018, 11:23 AM   #68
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Awesome, thanks for letting me know
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Old 15-02-2018, 10:15 PM   #69
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does galvanzing add weight ?
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Old 15-02-2018, 10:17 PM   #70
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Technically yes, but it can’t be much more than a few grams.


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couldnt be bothered to stretch that far to pull it out.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 05-03-2018, 09:01 PM   #71
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worth going down the route of galvanising then
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Old 06-03-2018, 01:54 AM   #72
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Yes totally! As long as you have a good base frame
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Old 06-03-2018, 06:50 AM   #73
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I agree. If I could build the car again, I'd galvanise the shell too
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Old 06-03-2018, 10:41 PM   #74
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Gets a big thumbs up, I wouldn't hesitate!
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Old 07-03-2018, 01:29 PM   #75
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about to film my subaframe / POR15 experience very soon
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