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View Full Version : Why do the wheelarches always rust???


glyn211269
08-10-2009, 00:26
I can vaguely remember from college about how rust forms, differering electrical properties of metals, add moisture etc etc...or something like that anyway. It was a long time age....

But does anyone know the root cause of why its always the rear wheelarches that rust so badly? Is it a water trap, bad sealing, or what?

Don't ships have a dirty great lump of zinc called a 'sacrificial anode' which corrodes first so the rest of the ship doesn't?

In which case, if I weld a chunk of Zinc to my Willy, will it stop my wheelarches from rusting?!!!

No, I didn't think so :-)
schakal
08-10-2009, 07:48
one of the main reasons would be the rear wheels throwing water ,mud,salt etc off the road acting as an abrasive .
fasterthanjesus
08-10-2009, 11:43
mositure + salt on the roads + uk weather = the brown stuff.

i have found a cure.

it also makes your car worth x5 more! :wink:
Allan
08-10-2009, 11:49
speaking of cures

http://www.detailingworld.co.uk/forum/showthread.php?t=133377
schakal
08-10-2009, 12:07
speaking of cures

http://www.detailingworld.co.uk/forum/showthread.php?t=133377

is he retarded or something ? it took him almost a week to
get rid of some poxy surface rust using posh "rust killer"
this takes me 5 minutes (including a cuppa ) using a knotted wire cup
on the good old angle grinder :roll:
Wobba
08-10-2009, 13:24
mositure + salt on the roads + uk weather = the brown stuff.

i have found a cure.

it also makes your car worth x5 more! :wink:

Gold plate?
1995clio16v
08-10-2009, 16:23
speaking of cures

http://www.detailingworld.co.uk/forum/showthread.php?t=133377

That looks amazing, but rust is a cancer, once it starts there's no stopping it?
MatBrown
08-10-2009, 18:26
mositure + salt on the roads + uk weather = the brown stuff.

i have found a cure.

it also makes your car worth x5 more! :wink:

Gold plate?

Moving to OZ!


Mat.
katbloke
08-10-2009, 19:19
bilt hamber make some of the best products on the market for rust treatment, still cant beat vutting out and rewelding new metal in but hey ho
MatrixGuy
08-10-2009, 21:36
bilt hamber make some of the best products on the market for rust treatment, still cant beat vutting out and rewelding new metal in but hey ho

Always wanted to try the BH stuff but my car has so much fooking rust, lol :cry:

I take it that it's better than Dinitrol?
Clio_GTT
08-10-2009, 21:49
You basically hit the nail on the head, electrochemical process.

Cathodic protection would work on a clio but would you really want to bolt a massive piece of zinc to a hatchback?

Prevention is better than cure, regularly clean the arch as dirt builds up which stores moisture against the bodywork, underseal the car every couple of years, especially the arches as they're hit by stones etc etc
schakal
08-10-2009, 22:01
a well known method for preventation is brushing used engine oil.
you can usually see the affect on the subframes/engine bay after an
engine removal . you wipe the oil & dirt mixture off and it reveals
unraped factory paint .
fasterthanjesus
08-10-2009, 23:50
yesh, for shure wobba. gold plating!
katbloke
09-10-2009, 07:01
chemically dip the shell, fix all the rust, get it electropheretically treated then waxoyl paint etc etc etc thats the best chance youll ever have even compared to newer cars
MatrixGuy
09-10-2009, 12:50
chemically dip the shell, fix all the rust, get it electropheretically treated then waxoyl paint etc etc etc thats the best chance youll ever have even compared to newer cars

and how much would that coste mate? lol
LEIGH-ANNE
09-10-2009, 13:03
but my car has so much fooking rust, lol :cry:



Mines just dirty :lol:
Tommo
09-10-2009, 13:28
Just let it rust and say you've gone for rat look
flash
09-10-2009, 18:34
alot of the classic for boys go for the zeebart (spelling) approach..
its a pricey process but your car will not rust for beans afterwards !
col
09-10-2009, 19:15
Theres a place up near me in brierley hill that dips shells,dont quote me but it entails about three different dips.............cost 5to700 pound

and you can leave the shell outside after its done,elements wont harm it!
white16valver
12-10-2009, 17:34
Nice... That would actually be cost effective if you had the arches done then stripped it down to just the shell. £5-700 would cover just the rear arches in a couple of years time going the normal route! lol
MatrixGuy
12-10-2009, 17:40
alot of the classic for boys go for the zeebart (spelling) approach..
its a pricey process but your car will not rust for beans afterwards !

Just looking at this on Google.

Can the process be done in the UK? I wonder how it compares to Dinitrol, etc.
katbloke
13-10-2009, 01:01
Its ziabart or something and is readily available in the UK another worth considerong is bilt hamber dynax
busterhymes
13-10-2009, 07:52
ziebart :wink: