Author Topic: Guide to Minor Paint/Bodywork Repairs  (Read 14933 times)

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Salem

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Guide to Minor Paint/Bodywork Repairs
« on: November 19, 2006, 22:05:48 PM »
As in my previous guide http://www.clubcalibra.com/index.php?topic=2257.0this is all about getting ready for winter.
In this case though its about preparing the outside of your calibra for the winter months, as nothing will kill the bodywork quicker than salted roads and bare metal.

Fortunately my Calibra's in pretty fine fettle, but even so you should regularly inspect the bodywork for potential problems.
After such an inspection i spotted this,



Actually i knew it was there but for the sake of artistic licence lets pretend that i didn't.
After a quick dig with my thumb nail the extent of the problem becomes known.



Now obviously the dreaded tin worm has taken a hold here and by the end of the winter months the body work could well be perforated which would result in a more involved and costly repair.

So, the idea is to remove the rust and repair the effected paintwork without all the rubbing down, filling and spraying which normally makes a repaired area 3 times the size by the time you've finished.

Please note that this sort of repair (unless your really good) is not suitable for large areas and visible panels like wing tops and bonnets etc, this guide is to help you protect your car's bodywork so that you can get it professionally restored at a later date, having said that, areas such as this where most of the damage is out of site will be fine as a perfect finish is not required.

You will need the following


For those with poor eyesight that would be a multitool (if you have one with a flexible shaft so much the better) with  sander and wire brush attachments, a good quality filler primer (a good primer will contain an inhibitor or you can use a separate rust inhibitor if needed), obviously some paint to match your existing colour, and a fine paint brush, oh and some brake cleaner (and if its cold and your doing this outside, a hair dryer or hot air gun).

Carefully remove the paint and rust within the effected area and very slightly beyond, take your time and make sure you remove all the rusty metal (if you don't it will come back to haunt you) without damaging any of the surrounding bodywork.

Here is the effected area cleared of rust and ready for the wire


After working the repair with the wire brush attachment you will be left with bright shiney metal completely free of rust and contaminants.



Now to start building up the paint on the repair, spray some primer into the cap that it came with (works as well as anything else) and leave it for a minute so that the propelant evaporates, this will leave you with a thick yet still fluid paint, carefully apply the primer making sure you do not go over the edge of the repair.



Give it some time to dry and if needed, some help with a hair dryer or heat gun, not to close to the paintwork though or it will burn.


repeat the proccess until you have built up the repair so it is just below the level of the surrounding paintwork.


At this point if you need to, you can carefully sand any high spots to give a smooth finish if the repair is in a highly visible area, however bare in mind we are relying on the top coat to give the final finish so dont be to fussy.

Once your happy with the primer stage proceed with applying the top coat, as with the primer, spray some paint in the lid and once ready use the brush to slowly build the paint up in stages till its just proud of the original
paintwork.
Once your happy with the finish leave it for a few hours to let the paint cure slightly then gently rub the repaired area and the surrounding bodywork with Tcut, this will blend in and level the repaired area to the existing paintwork ( its a bit like french polishing only more manly :D), again once your happy with the repair leave it to harden and then give it a good polish , job done.





Unfortunately as you can see it started to rain before i could finish the job but you can see the paint is starting to blend in with the original paintwork and the repair is pretty much there  on the visible part of the wheel arch.

I hope you find this guide usefull and remember its only good for small areas and stone chips and its impossible to completely blend in metalic paint, but it will protect the paintwork and if done correctly will restore the look of, and protect your Calibra.



S ;D

UPDATE 30/11/06

Finally got some reasonable weather so i finished the repair,  you can still see the repair but you have to look pretty hard, this was a pretty large repair and as i said only a professional spray will restore the paintwork 100%.






Offline ClubCalibra

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Re: guide to minor paint/bodywork repairs
« Reply #1 on: November 19, 2006, 22:18:45 PM »
Thats looking brilliant mate!!! Just a few pics missing at the top but as soon as you fix those, I'll move it and reward some Shop Credits!!
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Salem

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Re: guide to minor paint/bodywork repairs
« Reply #2 on: November 19, 2006, 22:24:11 PM »
Thanks Ash,if it helps someone in the community then its worth the effort,  although i dont appear to be missing any pics from the guide????.



S

Offline Mr V

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Re: guide to minor paint/bodywork repairs
« Reply #3 on: November 19, 2006, 22:32:07 PM »
Nice guide and i can see all the pics  ;)

Offline Cozy

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Re: guide to minor paint/bodywork repairs
« Reply #4 on: November 19, 2006, 22:32:38 PM »
is that on the rear arch, seems a little odd for the rear arches to go on an R reg with them being galvanised good guide and good job though
Cheers

Cozy
Manc & Proud

bricksnbikes

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Re: guide to minor paint/bodywork repairs
« Reply #5 on: November 19, 2006, 22:36:07 PM »
fantastic , wonderful and brilliant .
didnt know that about spraying into the lid and leaving for a minute .
gonna have to get me a flexible friend now .

Salem

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Re: guide to minor paint/bodywork repairs
« Reply #6 on: November 19, 2006, 22:39:32 PM »
is that on the rear arch, seems a little odd for the rear arches to go on an R reg with them being galvanised good guide and good job though
Thanks guys, it is the rear arch Cozy the rest of the bodywork in that area is spot on, i can only assume that it was damaged with a wheel brace or something that cut into the metal.


S

Salem

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Re: guide to minor paint/bodywork repairs
« Reply #7 on: November 19, 2006, 22:44:35 PM »
fantastic , wonderful and brilliant .
didnt know that about spraying into the lid and leaving for a minute .
gonna have to get me a flexible friend now .
lol. i've fixed many a bike fairing and tank using that method, thats where i originaly got the idea, with practice you can effect a repair to bad stonechips that is completely invisible.


S

Offline ClubCalibra

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Re: guide to minor paint/bodywork repairs
« Reply #8 on: November 19, 2006, 22:46:02 PM »
Nope, you're right the pics are working now! Brilliant effort, give me a bit of time and I'll migrate it into an actual FAQ section and give you some Shop Credits, just be sure to bank them QUICKLY else someone may well steal them!!!
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bricksnbikes

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Re: guide to minor paint/bodywork repairs
« Reply #9 on: November 19, 2006, 22:56:47 PM »
aha seriously that is brilliant , i allways end up like you said a small repair turns big repair and stands out .do you use any of that cure rust stuff as well ???

Offline Trigger

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Re: guide to minor paint/bodywork repairs
« Reply #10 on: November 19, 2006, 22:58:57 PM »
Thanks guys, it is the rear arch Cozy the rest of the bodywork in that area is spot on, i can only assume that it was damaged with a wheel brace or something that cut into the metal.


S

Ours is an R reg and the back arches are starting to go. I read on .com somewhere that the galvanizing does not go down as low as the arch for some reason, don't know why but anyhow ours are deffo starting to go.

Offline [email protected]

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Re: guide to minor paint/bodywork repairs
« Reply #11 on: November 19, 2006, 23:02:28 PM »
Brilliant guide Salem & thanks.  One minor improvement that I would suggest is to 'fix' the metal before you apply the filler by applying a sacrificial primer.  You can use a zinc oxide, or red oxide primer for this, but there used to be a product called Trustan (not sure whether it is still available) that was even better.  Trustan is a thin liquid, rather than a paint & combines with any traces of rust remaining to form an inert black surface.  Any trace of rust remaining under the repair will eventually become active again, but Trustan minimises this.  [It was once used to preserve the remains of a submarine after it was recovered from the sea bed.]

Offline Mr V

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Re: guide to minor paint/bodywork repairs
« Reply #12 on: November 19, 2006, 23:13:26 PM »
Thanks guys, it is the rear arch Cozy the rest of the bodywork in that area is spot on, i can only assume that it was damaged with a wheel brace or something that cut into the metal.


S

As soon as the zinc coating has been breached by a stone chip or other then rust is going to appear.

Offline Mr V

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Re: guide to minor paint/bodywork repairs
« Reply #13 on: November 19, 2006, 23:16:06 PM »
Ours is an R reg and the back arches are starting to go. I read on .com somewhere that the galvanizing does not go down as low as the arch for some reason, don't know why but anyhow ours are deffo starting to go.

The zinc coating  goes from the bottom upwards and does not cover the whole car, as stated in my previous post once the zinc is damaged rust will appear.

Offline [email protected]

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Re: guide to minor paint/bodywork repairs
« Reply #14 on: November 19, 2006, 23:16:52 PM »
As soon as the zinc coating has been breached by a stone chip or other then rust is going to appear.

Yeah, but the zinc oxide coating would be under the filler, primer & top coat, so it would be protected from further breaches.  In any case, the Trustan is even better at fixing rust.

Offline Trigger

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Re: guide to minor paint/bodywork repairs
« Reply #15 on: November 19, 2006, 23:20:59 PM »
Found the thread where people are talking about galvanizing

http://www.clubcalibra.com/index.php?topic=1441.0

Salem

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Re: guide to minor paint/bodywork repairs
« Reply #16 on: November 20, 2006, 00:21:44 AM »
Brilliant guide Salem & thanks.  One minor improvement that I would suggest is to 'fix' the metal before you apply the filler by applying a sacrificial primer.  You can use a zinc oxide, or red oxide primer for this, but there used to be a product called Trustan (not sure whether it is still available) that was even better.  Trustan is a thin liquid, rather than a paint & combines with any traces of rust remaining to form an inert black surface.  Any trace of rust remaining under the repair will eventually become active again, but Trustan minimises this.  [It was once used to preserve the remains of a submarine after it was recovered from the sea bed.]
Good point [email protected] i forgot to mention that, i did say a good quality automotive filler/primer though which will contain an inhibiting agent.
On non penetrative repairs such as this complete removal of the oxidised metal will normally surfice if used in conjunction with a quality primer, penetration corrosion however would indeed benefit from a separate inhibitor unless you are going to cut out the corroded area.
I'll add your point to the guide  ;)

s

Salem

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Re: guide to minor paint/bodywork repairs
« Reply #17 on: November 28, 2006, 22:32:38 PM »
Just to update you all, i really have been trying to finish the repair so that i can show you the finished job, but every time i have some spare time it seems to be p-$$--g down, as soon as i get the chance to complete it i will add the result to the guide.


S ;D

Offline ClubCalibra

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Re: guide to minor paint/bodywork repairs
« Reply #18 on: November 29, 2006, 21:55:12 PM »
If ok with you mate, I'll leave it here till you're completely finished, then will reward shop credits and move to FAQ's afterwards.  Keep up the good work, more guides comin?
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Salem

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Re: guide to minor paint/bodywork repairs
« Reply #19 on: November 30, 2006, 14:47:18 PM »
Guide all finished.

Remember, this guide is for the treatment of minor chips and scratches and if done properly will give in most cases an almost invisible repair, just take your time and don't overdo it with the Tcut.


S ;D

Salem

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Re: guide to minor paint/bodywork repairs
« Reply #20 on: November 30, 2006, 15:01:13 PM »
more guides comin?

I've kind of got an idea for the next one.

S

Slot_boy

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Re: guide to minor paint/bodywork repairs
« Reply #21 on: November 30, 2006, 15:05:21 PM »
top guide m8, sadly mine are f**ked and need the bodyshop!!  :'(

Salem

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Re: guide to minor paint/bodywork repairs
« Reply #22 on: November 30, 2006, 21:25:30 PM »
top guide m8, sadly mine are f**ked and need the bodyshop!!  :'(
Thats kind of the idea of the guide, its nice to be able to repair stone chips yourself but if you know you have a problem area, then at least you can deal with it and make a reasonable job  until funds are there to get a proper paint repair.


s

Offline ClubCalibra

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Re: guide to minor paint/bodywork repairs
« Reply #23 on: December 03, 2006, 20:10:47 PM »
Brilliant guide, we need more of this!

Topic moved and rewards given!
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stutox

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Re: Guide to Minor Paint/Bodywork Repairs
« Reply #24 on: June 20, 2009, 03:00:29 AM »
gud link,well helpfull,got all da gear,try it 2moro ta