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jpb308 Offline
#1 Posted : Monday, 5 April 2010 7:36:23 AM(UTC)
jpb308

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Team

Ive stripped the paint off the inner guards and chasis rail that was affected by brake fluid back to bare metal with a wire brush.

The metal is generally fine but there's some minor pitting in the surface that will need filling.

So what order do I do things??

Is it:-
Rust Converter
Etch primer
Blade putty
Spray filler
Primer
Top coats
Clear??

It's all out of a can - can't use a spray gun yet and I'm not going to learn now.

Any help would be great.

Cheers

Jeremy

The G will roll again....
The G will roll again.... eventually
jim Offline
#2 Posted : Monday, 5 April 2010 8:15:42 AM(UTC)
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Sorry ,but I have only one thing to say,get a spraygun and learn,its easy and if you use cans itll cost you about $1,000,000,000 to paint your car and still look sh!t.dont worry if you get stuck WE will all guide you thru with what we know...trust me ,its EASY.

CHECK OUT MEMBERS RIDE SECTION....NOT ONE SPRAY CAN,THERE IS A REASON FOR THAT!

P>S>>>the order you have is about right.dont bother with primer
just get "one step primer/putty" in the same can.

Jim in Adelaide...Hindsight is bad vision!

Edited by user Monday, 5 April 2010 8:28:21 AM(UTC)  | Reason: Not specified

Jim in Adelaide..
Silverfox Offline
#3 Posted : Monday, 5 April 2010 11:35:59 PM(UTC)
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Hi Jeremy
Fully agree with Jim.
Keep asking on this forum and you will usually get quality responses.
Ive done pretty much all you can do refurbishing cars for over thirty years now (crap im getting old...).
It appears you feel comfortable with cans because you have used them often. Yes you can get excellent results with a can especially in small areas and on small bits. If done properly you can even get "Factory" results on some!

I know... they are easy, no clean up etc. But it is only that you have not clocked up many (if any?) hours with a gun that you are hesitating. Dont worry if you make a mistake like a dirty big run or get peel when you dont want it or any of a dozen other common mistakes.
The great thing about paint versus mechanical etc. is that usually after the mistake dries it can be rubbed and re coated. Ive made some HUGE bugger ups with paint and I have to say that with a little patience painting is the most enjoyable thing. A good result has a huge impact.
to areas as large as inner guards etc.

If you are attempting a "factory" result from bare metal in an area as large as a whole engine bay will require more than several cans of each thing. It WILL cost heaps more than buying primer/filler/GM chassis black in tins.....and you will have left overs for other jobs.

If you are not confident do a short course at your nearest TAFE. The money you save on spray cans will be more than justified when you spread the cost of the equipment over say ten years..... you can attach air tools to it too!
Ive been watching your build and I encourage you to keep at it. You are going well.
I hope my comment helps.
Pls PM me if you need to.
All the best.
Nick Moran
Yamba
NSW
"HOLDEN MONARO. OUT TO DRIVE YOU WILD!"
commodorenut Offline
#4 Posted : Tuesday, 6 April 2010 7:08:31 AM(UTC)
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Hey Jeremy, been thinking a little since you left today... maybe you should practice with some white next weekend?

Seriously though, I need to paint my block & sump next weekend, so maybe I should wait until youre passing through?

Cheers,

Mick
_______________________________________________________________

Judge a successful man not on how he treats his peers, but on how he treats those less fortunate.
Cheers,

Mick
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Judge a successful man not on how he treats his peers, but on how he treats those less fortunate.
HT Prem Offline
#5 Posted : Tuesday, 6 April 2010 7:49:11 AM(UTC)
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Hey Jeremy,
I did a spray can job on my engine bay many years ago. It looks good initially, but after a few years, surface rust crept in and I finished up completely stripping and rebuilding a new front clip.
This time I had it sand blasted, primed and painted with 2 pack black. After 3 years so far so good, and it cost me the similar to the can job I did years ago.
I suggest you take a tafe course as suggested, and have a go, there is plenty of advise available at this site, and te end result is very rewarding. The other option is to have it painted by a pro.

Good luck!
mono Offline
#6 Posted : Tuesday, 6 April 2010 9:22:25 AM(UTC)
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hey jeremy,
i have done this trade since i was 13.if you want the job to be perfect you cant teach experience and i would agree with ht prem and get it done by a pro.but if you want to have a crack at it yourself for personal satisfaction then you have the process about right as jim has said.only help i can give is to toss the rust converter out and get rid of the rust problem physically (sanding,grinding,blasting etc) as converters usually only band aid the corrosion prob.cant get better prep than clean metal.next never touch the bare metal with your bare hands as this will leave moisture and greases behind and will cause problems later such as surface rust ,delamination etc.next is use a good quality etch primer,use as directed as its not a mater of more is better,next slight sand area that needs filling.fill as needed and sand.finish of with 120 grit sand paper so you dont get any sink back (scratches)comeing through your topcoat later and then apply another light coat of etch primer to cover any bare metal.then use your primer filler.allow correct drying times between products so no problems arise, sand primer filler with 400 grit wet and dry and then use a wax and grease remover(removes any silicone etc) to make sure area is ready for topcoat.topcoat as directed.clears are not needed unless directed.the gloss factor will depend on your top coat product.mat,sat,gloss.easy as if you follow each step.miss one step or rush the drying time or process is the most common mistake that leads to a poor finish.all this can be done with a can but you cant beat the gun,its all about experence the more you do the better you get and in the end the product and gun method is a lot cheaper then the can .hope this helps,mono
hainzy Offline
#7 Posted : Tuesday, 6 April 2010 10:12:43 AM(UTC)
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Some great advice there. I have been thinking about exactly this as I have a couple of spoilers i want to paint up. I was thinking of gettting cans made up but I did that with the inside of the sandman and as pointed out, it took heaps of cans and cost heaps. (I think about 8 cans at around 25bux each..!!) So I was planning on getting a gun and giving the spoilers a go. Then if I can get proficient i might try and do a home job on the torana when im ready...

So Im wondering, how different is the advice above when changed from metal to fibreglass? Can you dumb the process down for fibreglass or is it still much the same? Apart from the rust stuff obviously...

Also is there a mimimum quality of gun/brand we need to look for?

Cheers.
jpb308 Offline
#8 Posted : Tuesday, 6 April 2010 5:51:13 PM(UTC)
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Gents

Some great advice and offers amongst these replies and thanks for that.

I know theres always great support and advice here for novices like me and thats why I pester you all so much - please keep it up. (look at that advice for the steering column covers Jim - perfect!!)

Back to this task though.

Id really like to do this myself, partly because Im on a budget and would prefer not to spend the cash on a professional when it might get my seats recovered, but mainly because I want to open the bonnet and think I did that!!. Its why I got into building to be honest - drive by an old project and point it out to the kids...

Having said that, as mono says Im not going to get the experience overnight and I want to get this thing back together before I retire!! Also, my engine bay is in the metalic body colour and I want to leave it that way. I assume you should start out practicing on flat panels and with solid colours if possible.

So for now Im going to finish this off with the cans - I already have them anyway :)

So can I ask a couple more questions:-

1. The paint in the majority of the engine bay is very sound and in good condition. I would intend only to scuff these areas up with 120 grit, wash with prepsol and then topcoat - is that a plan??

2. If I mechanically remove all the rust (as I have with the wire brush in this instance) would treating with rust converter hurt adhesion of the etch primer?? Would it be a good belt and braces measure, or is it just not necessary?

3. So no clear coat?? Its acrylic in these cans. I always assumed you needed clear. Maybe too many years of reading Street Machine as a schoolboy - .... and we finished it off with 80 coats of clear to blah blah.....

4. Where Ive patched an area and its in primer with the surrounding area in original paint, should I paint the primed area with a coat of topcoat or 2 and then lightly resand so the final top coat to the whole panels going over a consistant base?? (Thats what we do patching gyprock... :) )

Mono - more is not better - great tip. I think I made that mistake on the column covers. Is this the same for all the various layers??

Cheers and thanks again

Jeremy

The G will roll again....

Edited by user Tuesday, 6 April 2010 5:54:30 PM(UTC)  | Reason: Not specified

The G will roll again.... eventually
jim Offline
#9 Posted : Tuesday, 6 April 2010 7:17:19 PM(UTC)
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1. i would use 400 grit if you only wanna freshen it with a top coat.
also top coat of clear (dont bother polishing for a street car)

2. no it wont harm adhesion but let it sit for a day and clean with prepsol
(REMMEMBER THAT WORD PREPSOL)

3.acyrlic does have clear on it and i suggest you use it,about3-4 coats
and up to 6 will be fine.especially with metallic paint(hard to buff metallic)

4.if your patching an area that will be ok,but sometimes its just as easy to spray the whole panel in primer and 2-3 base colour coats,either way when you paint your first 2 coats of colour(if prepared properly)that all dissapears....

"this is all just my ideas ",hope they help...jim

p.s.more isnt better ,correct, when you use a spray gun the first coat
is really thin ,then the second coat starts to really change the colour and so on.

acrylic paint 1 part paint to 2(2.5)thinners hot weather(above25.c) ,use retarder ask at the shop......roughly

Jim in Adelaide...Hindsight is bad vision!

Edited by user Tuesday, 6 April 2010 7:22:49 PM(UTC)  | Reason: Not specified

Jim in Adelaide..
mono Offline
#10 Posted : Wednesday, 7 April 2010 2:35:58 AM(UTC)
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hey lads,
yea we are starting to get the idea,
1.120grit is to course for any top coat.only use less than 320grit if a primer filler is to be used.then as said wax and grease remover(prepsol)the whole area to be painted.be sure to wipe on the prepsol and wipe it off while still wet or it removes NO contemination.then apply your top coat as described and vary your spray technique with each coat(cross hatch)so that you dont get striped effect with metallics.metallics need a clear coat (for gloss ,buffing) so you will have to apply as directed.
because its an engine bay and acrylic paint needs to be fine sanded(1200 grit)and buffed for gloss factor you could use retarder thinners in your clear coats as it dryes slower (ie retarder)thus giveing a better gloss of the gun finish with out fine sanding and buffing.BE CAREFULL RETARDER THINNERS DRYES SLOWER THAN STANDARD THINNERS SO IT CAN BITE INTO OLD REPAIRS AND CREATE SINK BACK(scratches).
2.if you have completley removed the rust problem mechanically and the metal is spotless then dont use a rust converter just etch prime it,then your primer/filler.
3.all acrylic metalics need clear coat as i just covered.again as directed as to many coats cause problems such as bridgeing(cracking in creases )and a number of other dramas.
4.your method described for patching gyprock is the same.as you will see ,the over spray you will get as you color your repaired area will be very course (more so with spray can application)and a light wet rub with 1200grit would remove the overspray build up.then cross hatch the next couple of metalic coats before adding your clear.IF YOUR FINAL METALIC COAT DOES NOT LOOK AS GOOD AS YOU WANT IT TO (blotchy,stripey,etc)DO NOT CLEAR.re wet rub with 1200grit and recoat as described.only clear when you are happy with the look of your top coat.

HAINZY,yea mate sorry same steps needed with your fiberglass repairs.no real short cuts they tend to come back to bite you.

jeremy,
hope this helps,sorry i cant explain the steps any shorter,but i have tried to explain HOW and WHY then it might make more sense to any readers,mono
mono Offline
#11 Posted : Wednesday, 7 April 2010 3:12:08 AM(UTC)
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hainzy,the cheapest way to get into a spray gun would be one from supercheap,aprox 80 bucks.probs go for gravity fed(paint goes in cup on top of gun)as this minamizes waste and easyer to handle.all paint products need diffrent nozel tip sizes to get the best results.for example acrylic paint = 1.4tip.primer fillers =2.0tip and so on changing again with 2pacs.most lads have a 1.4,1.8,and a 2.o.this covers a lot of products.a gun from supercheap as i said will be fine for the home handyman just match up the paint product to the correct tip size.if you keep it clean during and after use and run plenty of thiners through it after use it will last you,hope this helps.mono
jpb308 Offline
#12 Posted : Wednesday, 7 April 2010 6:01:51 AM(UTC)
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Thanks Jim - Thanks mono

Watch this space - the engine bays gonna be spot on!!!

Then when I do my course and crack out the fun the box trailer needs to watch out!!!!

Cheers again

Jeremy

The G will roll again....
The G will roll again.... eventually
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