CAN YOU BY DOOR SKINS IN AUSTRALIA ??

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Originally Posted by hiline

Lardy i think these guys have them
but not sure of the quality .............


www.landrovers.com.au
4Wd Spare Parts
304 Middleborough Rd,
Blackburn Sth. Vic 3130
Ph. (03)98900500

worth a try i suppose

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i sent them a mail the website is somewhat sparse

I'd also be keen on a set of 4 galvanised door frames & skins depending on price. Keep us posted.

Regarding powder coating / galvanising - when I fisst looked intpo galvanising doorframes I was concerned about galvanic corrosion due to different electode potentials between zinc and aluminium, but in practice it doesn't happen (think county with galvanised cappings Vs defender painted cappings).

Can't remember the exact reason why (something to do the rate of corrosion and resulting pH levels - isuzurover might be able to offer a better explanation), but suffice to say, I'm convinced its not going to be an issue.

Cheers

Bojan

If one was to use Sikaflex to glue the skin to the frame there would be NO contact between the skin and frame so no corrosion ever:cool::cool::cool:
Its really good stuff,just make sure you get the correct grade for the job.
Andrew

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Originally Posted by Offender90

I'd also be keen on a set of 4 galvanised door frames & skins depending on price. Keep us posted.

Regarding powder coating / galvanising - when I fisst looked intpo galvanising doorframes I was concerned about galvanic corrosion due to different electode potentials between zinc and aluminium, but in practice it doesn't happen (think county with galvanised cappings Vs defender painted cappings).

Can't remember the exact reason why (something to do the rate of corrosion and resulting pH levels - isuzurover might be able to offer a better explanation), but suffice to say, I'm convinced its not going to be an issue.

Cheers

Bojan

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The standard electrode potential for Aluminium is -1.66v, for Zinc it is -0.76v and for iron it is +0.085V. Zinc is negative as is aluminium, and is reasonably close to it, so that the cell formed between zinc and aluminium is not very active, unlike that between aluminium and iron (or steel).

John

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Originally Posted by LandyAndy

If one was to use Sikaflex to glue the skin to the frame there would be NO contact between the skin and frame so no corrosion ever:cool::cool::cool:
Its really good stuff,just make sure you get the correct grade for the job.
Andrew

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not strickly true as land rover put a mastic in a have arsed attempt to stop that when they build them up, also they usually stick sealing tape to stretch the panel flat and insulate between ....it has been proven that powder coating works i will stick with that i reckon and a yearly dose of waxoyl

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Originally Posted by JDNSW

The standard electrode potential for Aluminium is -1.66v, for Zinc it is -0.76v and for iron it is +0.085V. Zinc is negative as is aluminium, and is reasonably close to it, so that the cell formed between zinc and aluminium is not very active, unlike that between aluminium and iron (or steel).

John

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that is appreciated John cheers, would zero be preferable to some reaction long term, and as cheap but effective fixes go which is cheaper as a treatment gal or powder ???
also could you have a gander at a post i have done called aqua rover i have some issues regards andy

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Originally Posted by lardy

galvanising is no good you will get electrolysis the answer is according to davey my mate is powder coating then once a year bung a load of waxoyl in the door cavity this will disperse any water

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Your mate is incorrect.

I had 2 sets of door frames galvanised in the mid 90s. One set has been to the beach a few times a year for 15 years, with not much attention paid to cleaning/rustproofing as every steel bit on the body/chassis of the vehicle is galvanised. No problems so far.

The numbers JD posted are for bare Al. Bare Al forms a protective oxide layer. This usually stops it corroding except under certain circumstances. I have an email somewhere from a corrosion researcher here at work which explains why corroding steel turns Al to powder. It doesn't happen with corroding zinc.