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How should i Rustproof my mk1 scirocco???

Posted: Sat Apr 21, 2012 8:48 am
by malmac
Hi all,

just got my mk1 scirocco resprayed after getting new sills and rear arches fitted etc and as i really, really, really don't want to go through all that again i was wondering how to rustproof it while it is still in bits ie no interior fitted or trim inside or out.

1) should i pay someone to do a proper job and come out and do that cavity waxoil thing?
2) Should i do it myself, i'm not a mechanic, so not sure what to use on it.
(car's in Liverpool so i'm not aware of any mobile waxoil service as yet)

Any advice much appreciated.

Mal.

Re: How should i Rustproof my mk1 scirocco???

Posted: Sat Apr 21, 2012 9:59 am
by MRMENDER
I would waxoil waxoil waxoil (Or Dinitrol) Until its coming out of every orifice!
Idealy rear axle and petrol tank out. Proffessionals can be expensive, A friend had a Transit camper done for about £900. Not sure how much a Scirocco would be
Ive got all the gear compressor and gun with all attachments. Im sure you can hire a compressor. Not sure about gun and attachments.
Pick a nice warm day to do it

Re: How should i Rustproof my mk1 scirocco???

Posted: Sat Apr 21, 2012 2:53 pm
by Nate
all the cavities (inside the sills, chassis rails etc) want to be treated with cavity wax. then i'd do under the wheel arches, inner wings etc with black shutz - this kinda thing http://www.autopaintsbrighton.co.uk/3m- ... 1530-p.asp" onclick="window.open(this.href);return false;

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 9:48 am
by malmac
Thanks for the above replies, looks like i was thinking along the right lines, i'll get a few quotes, if too much i may be tempted to have a go myself, whats the worst that can happen !!!

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 10:57 am
by 81GTi
never take it out in the rain, never take it out the uk between the months of November and May. 2 sure fire ways to inhibit rust on a mk1. I used my GTi as a daily for 3 winters and watched it disintigrate before my eyes.

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 11:21 am
by MRMENDER
81GTi wrote:never take it out in the rain, never take it out the uk between the months of November and May. 2 sure fire ways to inhibit rust on a mk1. I used my GTi as a daily for 3 winters and watched it disintigrate before my eyes.
Too true!
Nate wrote:all the cavities (inside the sills, chassis rails etc) want to be treated with cavity wax. then i'd do under the wheel arches, inner wings etc with black shutz - this kinda thing http://www.autopaintsbrighton.co.uk/3m- ... 1530-p.asp" onclick="window.open(this.href);return false;
Shultz is "ok" but tends to age badly. Some shultz will only take to bare metal. Not a good start, I would prefer a good anti corrosive undercoat then a good coat of smoothrite or similar. Followed by wax (Belt 'n braces job ;) )

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 2:13 pm
by Nate
smoothrite chips too easily for my liking

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 4:32 pm
by Winston
Im unsure what to recoat the bottom of mine in. some has suggested Epoxy Mastic

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 4:43 pm
by 81GTi
when i built my '77 these guys were all the rage http://www.por15.com/" onclick="window.open(this.href);return false; I have to say i am impressed 8years down the line, though there is signs of rust it's way better than i expected.

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 5:11 pm
by dozzum
I prefer to use clear waxoil as you can see if any rust is starting to form and treat it quickly. Whereas if you use anything like underseal/schultz you wont know if any rust has started under there unless you clean it all off.

Re: How should i Rustproof my mk1 scirocco???

Posted: Sun Apr 22, 2012 6:44 pm
by jimmy h
81GTi wrote:never take it out in the rain, never take it out the uk between the months of November and May. 2 sure fire ways to inhibit rust on a mk1. I used my GTi as a daily for 3 winters and watched it disintigrate before my eyes.
Agree.
Look at all the pics of MK1s under restoration (The one's left that is) on this forum or any other - they all rot in the same places.

When I last did the bodywork on my Storm in '96 I was doing it for keeps and not again, :o it was literally dripping with Waxoil out of all the cavity's when it came out of the bodyshop. Now I'm doing it again :diablo: I'd restored a MK1 GLS before and knew by example what to expect! :shocking:

Without a doubt, leaving my Storm outside has not done it any good, (which is why I extended my Garage).

The only sure-fire-way of keeping the steel from oxidising on a Mk1, is to keep water, salt etc away from it - that means the English weather.

I reckon moving to California has a lot going for it if you intend keeping one for a considerable time and can't be arsed with all the hassle that goes with. :chill:

Re: How should i Rustproof my mk1 scirocco???

Posted: Mon Apr 23, 2012 5:56 pm
by Phil
We used the 3M 8901 Cavity wax and used about 6 cans to fill every bit of it until it started coming back out of the car so we knew there was enough protection - on a really hot day it does tend to weep out still so hopefully this has done the trick ;)

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For the underneath we did this:

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scraped it all down and removed all the rust and then used the Terson Terotex underbody coating wax:

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this was used on the underneath, inner tops of the front wings, wheel arches and also the lower parts of the body:
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and then painted to match body colour:
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Also fitted MK2 golf plastic front wheel arch liners

Re: How should i Rustproof my mk1 scirocco???

Posted: Mon Apr 23, 2012 7:20 pm
by Nate
Image

how did you get it over?

Re: How should i Rustproof my mk1 scirocco???

Posted: Mon Apr 23, 2012 7:44 pm
by dozzum

Re: How should i Rustproof my mk1 scirocco???

Posted: Mon Apr 23, 2012 7:46 pm
by Phil
4 of us gently lifted it over, the shell is surprisingly light with no running gear or glass