GolfGTIforum.co.uk

General => Cosmetic and bodywork matters => Topic started by: Ashley on 29 February 2008, 21:16

Title: Rust/Painting
Post by: Ashley on 29 February 2008, 21:16
Hi Guys,

After finally finding out my colour code for my golf I've decided I need to fix some rust on the driverside wheel arch and a tiny bit on the boot (near the windscreen wiper)

I've searched around the forum for an How-To post etc but I've been unable to find one - can anyone talk me through how to treat say a piece of bubbly rust?

I've bought some kurust, body filler, wet n' dry, primer and masking tape, and I've got a fairly good idea of how to do it, but could anyone give me a few tips? Should I get a can of paint made up to spray?

My car colour is LP5U Bright Blue Metallic - probably a stupid question but will I need any laqcuer?

I hope some of you could help me..
Title: Re: Rust/Painting
Post by: Guy on 01 March 2008, 12:28

the paint you can get your dealer to mix up and they do a touch up kit with a lacquer for about 12/15 quid i think - you just need to give them your paint code

you can get halfrauds to mix up the paint too i think but i don't know about the quality

90% of getting this job right is in the preparation... take short cuts in the prep and it'll show through from a mile

please anyone feel free to correct me if you feel this advice is incorrect or can be improved upon
Title: Re: Rust/Painting
Post by: Ashley on 01 March 2008, 15:39
I'm going to be busy..

When you say over a 2 week period before cutting it back, it's fine to take the car out yeah?

cheers for that!
Title: Re: Rust/Painting
Post by: Guy on 01 March 2008, 22:23
nooo - leave it in the garage and don't whatever you do move it at all...  :laugh:



seriously - yep - it's fine to drive it about once the paint has dried...  just make sure it is proper dry before you take it out
Title: Re: Rust/Painting
Post by: Skiing on 04 March 2008, 12:27
Sorry, am probably being thick, but what is cutting back?
Title: Re: Rust/Painting
Post by: Ashley on 05 March 2008, 09:27
Any tips at all on this monstrosety? (see 'cosmetic matters' to comment, soz)

(http://img341.imageshack.us/img341/5412/rustyzy8.th.png)
Title: Re: Rust/Painting
Post by: Guy on 08 March 2008, 20:37
Sorry, am probably being thick, but what is cutting back?

its using a compound with light abrasives in it to essentially cut back a layer of paint... you then polish it

the aim of which is to match in your new paint with your 'old' paint so it won't be as noticeable that the new paint has been applied
Title: Re: Rust/Painting
Post by: eightyeightmph on 14 March 2008, 14:15
Here's a tip that I picked up from a mate at a paint shop....

If you're spraying using off the shelf rattle cans use your Missus' hair dryer to warm up the panel just before you spray it, also put the can of paint in a tub of "as hot as you can get it out a tap" water. Still shake the hell out of it but the idea is to get the paint warm so that it sticks better, drys a bit quicker & doesn't run or collect dust etc.

 :smiley:
Title: Re: Rust/Painting
Post by: MowatGTI on 20 March 2008, 18:02
Good shout chaps.

I have noticed a few rusty bits popping up on my mk3.

I'll post some pictures up when I can be arsed.

I'm hoping this method will cure them all!

Cheers.
Title: Re: Rust/Painting
Post by: golfmk31993 on 06 April 2008, 17:48
ive got a little bit of rust on my drivers side sill, but im gunna fit gti skirts to cover it  :smiley: and i got a 2penny sized rust bubble on my door so im just gunna buy a new door in my colour from the breakers,

my question is , is ther somthing i can just put on the rust before i fit the skirts to stop it from spreading any more??
Title: Re: Rust/Painting
Post by: Ashley on 06 April 2008, 17:54
depending on how bad it is you need to gring it/sand it and put some kurust on it
Title: Re: Rust/Painting
Post by: Ant on 24 April 2008, 22:16
What about stone chips?

I've got one or two that a previous owner hasn't dealt with, the chip exposed the bare metal and so it's a little rust, don't know if it's worth the risk of me 'having a go' vs further damage.

Is there some simple way of dealing with these instead of grinding back?
Title: Re: Rust/Painting
Post by: bundy on 03 May 2008, 23:08
in the how to, what do you mean by "tack cloth"? 
Title: Re: Rust/Painting
Post by: voiceNFC on 05 May 2008, 15:31
Hi guys
I've got quite a deep bit of rust by the petrol cap (inside the door around the screw cap) when I pressed my finger in to it it went in a bit, not all the way through! Any ideas on what to do with this? Obviously I'm not that bothered how it looks cosmetically seeing as though it's behind the petrol flat but Im a bit concerned that it's going to get worse and cause major probs.

Any advice would be much appreciated.

Cheers  :sad:
Title: Re: Rust/Painting
Post by: benjer182 on 05 May 2008, 17:19
at my work we do alot of rusty mercs and other rusty sh!t wot we do is
grind the rust off with a grinder or belt sander
once every trace of rust has gone sand the area bak
then apply a good filler
sand this bak untill the filler work is right
once it is corrrect prime it i dont no y people say to flat the primer in between coats but i dont no of anywer that duz this
once the primer has gone off flat it off mask the area and paint
once the paint has gone of flat dirt out of the paintwiv 2000 and buff up with a polisher



but ffs dont get the repair wet b4 u paint because primer lets water in and the filler holds it like  a sponge agenst the metal and this makes it rust agen                    and also dont ask people who work at halfords (no offence if u do)     but they ent panel beaters or painters       ur beta off askin a body shop
Title: Re: Rust/Painting
Post by: Dan34 on 07 August 2008, 19:44
What about stone chips?

I've got one or two that a previous owner hasn't dealt with, the chip exposed the bare metal and so it's a little rust, don't know if it's worth the risk of me 'having a go' vs further damage.

Is there some simple way of dealing with these instead of grinding back?

i also would like to know how to deal with stone chips, anyone got any tips?
Title: Re: Rust/Painting
Post by: samjac68 on 17 August 2008, 12:19
i saw a guide for repairing stone chips on detailing world, they showed them touched up with a touch up stick, flatted back with 1500 grit wet n dry and then rubbing compound and a good polish :smiley:

looked good as new :smiley:
Title: Re: Rust/Painting
Post by: Dan Gleebits on 15 January 2009, 20:03
if you have to leave the paint to dry for 2 weeks something is wrong.
i have painted in 2k paint left to air dry and polished/mopped it the next day or painted 2k in a oven(morning) and polished late that same day, or the 1k stuff for smart repairs and polished after a few hours.
i use 2k high build primer, i dont sand between coats, no point.

 :smiley:
Title: Re: Rust/Painting
Post by: e11ie on 27 January 2009, 18:02
If you have rust that you are just going to cover up with plastic trim...(which i wouldnt recommend because rust doesnt just go away!) then coat it in waxoil. That should do something towards halting it but never as good as grinding it back and coating it in Krust.

Even if you don't re-paint it just do the above and paint over the Krust with some hammerite and then stick the plastic trim over it.....you dont want to be a couple of years down the line with the trim falling off because the holes have totally rusted out!
Title: Re: Rust/Painting
Post by: Thom89 on 12 November 2009, 02:20
Here's a link to a guide I did some time ago, Not a VW, but very relevant http://www.golfgtiforum.co.uk/index.php?topic=93525.0
Thom
Title: Re: Rust/Painting
Post by: GuessWho on 25 January 2010, 22:22
I also see no reason to flat between coats of primer providing the coats haven't been allowed ot dry and harden between coats.
Title: Re: Rust/Painting
Post by: lfcscott on 02 March 2010, 04:20
hi
   my front wing looks like has been can sprayed by the previous owner & the front end of the bonnet is patchy where again it looks like he finely sprayed it with a can(t***) will a cutting compound get rid of the slight run on the wing?? & if i also use a finishing liquid will this give me a good finish?? or is it a case of total respray for these two panels??? can you help?? :undecided:
Title: Re: Rust/Painting
Post by: rcsammy on 30 June 2010, 23:18
Hey, i just got a mk3 to do up, its white and has some stencils painted on it and a couple of rust spots  :rolleyes:

i know the basics to spraying over these, but i only have grey primer, is this ok to use under white paint or do i need to use a different colour primer?

thanks
Title: Re: Rust/Painting
Post by: Shady Pioneer on 19 January 2011, 13:01
I need to do rust repairing on my Golf in a few areas, do I have to use a grinder/sander? Can I not just use sanding sheets and do it by hand?
Title: Re: Rust/Painting
Post by: RyanVW on 19 January 2011, 13:49
I need to do rust repairing on my Golf in a few areas, do I have to use a grinder/sander? Can I not just use sanding sheets and do it by hand?

i was just about to ask this... not got much access to any power tools
Title: Re: Rust/Painting
Post by: Shady Pioneer on 19 January 2011, 13:52
I need to do rust repairing on my Golf in a few areas, do I have to use a grinder/sander? Can I not just use sanding sheets and do it by hand?

i was just about to ask this... not got much access to any power tools

I've been reading up on it and another thing that might be useful is a wire brush (heavy duty if needed). I'm not fussed about 'damaging' the surrounding paintwork as I will be sanding it all down when it comes to satin painting it. Just want to get most, if not all of the visible rust gone.
Title: Re: Rust/Painting
Post by: nige_s on 19 January 2011, 13:58
Black & Decker Powerfile is your friend, I wouldn't be without mine.  Buy the belts of Ebay for cheapness and it gets into the tightest of spaces.

(http://www.tooled-up.com/artwork/ProdImage/TB20370.jpg)
Title: Re: Rust/Painting
Post by: Lukenukem on 19 March 2012, 23:12
Just a quick few comments upon spray jobs

A chap on here already mentioned heating up the panel prior spraying with a hair dryer ( you could buy an industrial one as this won't overheat like your misses will if you break her hair dryer before a big night out ).
He also mentioned to use hot water to heat your can up prior to use - Tip on top of this: keep the can immersed in the hot water especially when near the end of the contents as this will give more energy to the contents inside giving a better spray and retard the presence of droplets that will sit out of an near empty can ( think of the Brownian motion experiment at school science class - the more heat you use the more random the gas shoots about - Warning though direct heat will be extremely hazardous as your using solvent which are flammable hence hot water being used only!!)

Top tip - pay attention to the style of the nozzle, many cheap versions will not only spit paint out unevenly but will paint your fingers in the process (careful where you put these painted nails!) If you can get hold of the wider styles nozzles almost like a mini air horn, your fingers are well behind the nozzle and the spread spray throughout is a hell of a lot better than your average Halfrauds stock.

Thanks for your time . . .

Title: Re: Rust/Painting
Post by: GolfDriverUk on 14 May 2016, 13:17
I am looking to repair some rust patches close to my wheel arches and side skirts. I am pondering whether to do the job myself.  I noticed this company sell D.I.Y scratch repair kits with their touch up paint. [url]https://www.mpexdirect.com[url] I have never painted a car before if you opt for the brush does it leave a good finish? It's just small specs of rust patches that I need to remove
Title: Re: Rust/Painting
Post by: lemski on 14 May 2016, 19:47
Brush in my experience leaves marks