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Bonnet( paint preperation questions) Need Help

Started by _TUFF75LH355_ , Dec 30 2009 09:42 PM

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57 replies to this topic

#1 _TUFF75LH355_

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Posted 30 December 2009 - 09:42 PM

ok guys i have never painted or repaired panel work on a car before but i am wanting to give it a go.. not major repairs just minor.. Anyways i recently brought another bonnet for my torana so i can cut a hole in it and have the filter through the bonnet... it is currently painted , paint is shit . It has a few surface rust spots nothing major. What i wont to do with it is rub it back , prime and paint matt black for time being ... Can anyone please give me some advise on the rubbing back process, the steps to follow that and the primer process and which primer to use cheers Ben BIG thanks in advance

Edited by TUFF75LH355, 30 December 2009 - 09:49 PM.

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#2 _yldlj_

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Posted 30 December 2009 - 10:04 PM

i would paint strip it back to metal. 180 the bonnet, repair, a coat of etch primer, then 2k primer,rub back and paint

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#3 _Bomber Watson_

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Posted 30 December 2009 - 11:44 PM

That about covers it, perhaps a bit of deox (rus converter) over the rusty spots if there bad.

Cheers.

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#4 _TUFF75LH355_

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Posted 30 December 2009 - 11:49 PM

when you say 180 the bonnet ... wet or dry

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#5 _yldlj_

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Posted 31 December 2009 - 12:03 AM

yeah agree with bomber about the rust but by the way you said it was it should just sand out. dry rub it. if you can get a hold of a dynabrade it will save a shit load of time. you can buy one fairly cheap.

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#6 _Bomber Watson_

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Posted 31 December 2009 - 12:10 AM

Best thing you will ever buy, called a "dynabrade" in the western states or a "random" or "orbital" in the eastern sates from what i can gather.....

Cheers.

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#7 _yldlj_

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Posted 31 December 2009 - 12:12 AM

i call it a wizza. there's no way i would ever sit there rubbing back panels by hand

Edited by yldlj, 31 December 2009 - 12:13 AM.

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#8 _yldlj_

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Posted 31 December 2009 - 12:35 AM

if your gona 2k the whole bonnet i would 80grit it instead of 180 before the repairs.then 180 it around the repaired area

Edited by yldlj, 31 December 2009 - 12:36 AM.

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#9 _TUFF75LH355_

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Posted 31 December 2009 - 10:30 AM

thanks for the help fellas very much appreciate it... i Brought a foam like disc with sand throught it for my angle grinder is this any good or not to use ... i read a thread on here where someone recommened them...

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#10 _yldlj_

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Posted 31 December 2009 - 11:36 AM

cant help ya with that i have never used anything like that. but you are only scratching up the metal so it should be fine. just a tip dont stay in one place to long as it will heat up the metal and the sealer behind the bonnet. if te sealer heats up it will suck the metal down and you might have to cut the sealer

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#11 _TUFF75LH355_

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Posted 31 December 2009 - 12:18 PM

thanks for the help yldlj and bomber watson appreciate it heaps Cheers Ben

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#12 _yldlj_

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Posted 31 December 2009 - 12:49 PM

not a problem mate if you have any other questions just post em up

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#13 _beergut_

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Posted 31 December 2009 - 05:34 PM

will work but just buy a wisser or air sander cheap from cashies/ripco/supa crap you'll use it more than once
and will give you a better job

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#14 _TUFF75LH355_

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Posted 02 January 2010 - 12:49 PM

got a few questions relating to terms used and are just curious to exactly what it all means..??? Hifill..?? Blocking out..?? Guide Coating..??

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#15 _yldlj_

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Posted 02 January 2010 - 01:12 PM

hifill is 2pac spray putty primer, blocking out is when you rub back the hifill, and guide coat is when you spray a really light coat of black over the primer so you know where you have rubbed out and have made sure all the scratches are out. after you guide coat you rub back (block out) but only until there is no black seen dont go any further.

Edited by yldlj, 02 January 2010 - 01:14 PM.

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#16 TerrA LX

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Posted 02 January 2010 - 01:19 PM

You just want to matt black the bonnet for the meantine, just rub it back with some scotchbrite and water mixed with laundry detergent, rinse and dry then hit it with a can of acryllic matt black.

Edited by TerrA LX, 02 January 2010 - 01:21 PM.

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#17 _yldlj_

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Posted 02 January 2010 - 01:42 PM

you could do it that way but theres rust coming through and i know you said theres only a few little spot but thats just what you can see under the paint there will be more rust forming so it would be a good idea to take back to metal. if you want a flat black look i would do what i have said then just buy some 2k black base coat and dont use clear. if your just going to scuff up with scotch and spray can it then once you want to get it painted properly its goning to make the job harder you might aswell do it right once the first time

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#18 TerrA LX

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Posted 02 January 2010 - 01:52 PM

A coupe of coats of acrylic will not make it any harder to repair the bonnet later.

If you dont have the time or money ATM then just give it a couple of coats as above.

P.S. Using a flat block where you can will help stop your fingers rubbing channels in the bonnet which will show up, anything you see on the bonnet once rubbed will show up in the top coat, woud be a good experience for you.

Edited by TerrA LX, 02 January 2010 - 02:01 PM.

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#19 TerrA LX

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Posted 02 January 2010 - 02:05 PM

got a few questions relating to terms used and are just curious to exactly what it all means..??? Hifill..?? Blocking out..?? Guide Coating..??

IMO forget 2K, 2 Pak Hill fil etc and learn the basics first, this stuff is poisioness and expensive to play around with.
Watch a few on line videos, hire or buy a DVD or a book or two.
Sit in the free class on Saturday at http://www.vgautopai...u/begginers.htm and get an idea before you waist money or your heath suffers.

Edited by TerrA LX, 02 January 2010 - 02:07 PM.

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#20 _yldlj_

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Posted 02 January 2010 - 02:23 PM

if theres dents and it need bog he's gona have to hifill over it, with either 2k or acylic, acrylic hifill is shit.

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#21 _TUFF75LH355_

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Posted 02 January 2010 - 02:51 PM

cheers guys... i think ill stick with your suggestions and info yldlj...but appreciate everyones help very much... heres some pics of the rusty sections after i rubbed them back , what can i do about it from here as its like pitting in the steel

Posted Image

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#22 _yldlj_

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Posted 02 January 2010 - 02:57 PM

try sand as much of it out as posibble. then wipe rust converter over it. its worse than i thaught it would be. once converted lightly scuff over with 180 and put some polly filler over it.

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#23 _beergut_

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Posted 02 January 2010 - 03:54 PM

polly fill is that the shellys brand?
or do you mean hi fill/spray putty?

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#24 _TUFF75LH355_

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Posted 02 January 2010 - 03:54 PM

cheers mate yer its worse than i thought it was too didint look too bad when there was paint there... thats the worst bit of it though.. bonnet wasnt a bad buy for $30

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#25 _yldlj_

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Posted 02 January 2010 - 04:02 PM

polly fill as polyster bog. most of the time you see a little bit of rust coming through there will be alot more under te paint thats why i sugested to paint strip the whole bonnet.