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Rootes75
Joined: 30 Apr 2013 Posts: 4174 Location: The Somerset Levels
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Posted: Tue Nov 26, 2013 10:44 am Post subject: First Time Spraying |
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I am at the stage now where I want to spray my classic commercial that I have spent 7 years restoring. I have dabbled with the spray gun in the past but nothing major, I now want to spray both the chassis and cab of the lorry but I am not sure what primers/paints would be best.
I am not looking at a concours spray job and I don't want to buy the cheapest paints on the market. Does anyone have any advice on a good primer / top coat combination? |
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ajlelectronics

Joined: 04 Oct 2010 Posts: 168 Location: Gloucester
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Posted: Tue Nov 26, 2013 11:19 am Post subject: |
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Use a good quality Epoxy primer first. That will be an excellent base for the top coat of your choice. Although Epoxy primer is 2 part, it does not contain isocyanates. It can also be rollered on if you are so inclined. Jotun is a well known name, but there are others of course. _________________ Evans Waterless Coolants
Find this and more at http://www.classicmicrocars.com
Sat TV / Aerial systems etc: http://www.ajlelectronics.co.uk |
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Rootes75
Joined: 30 Apr 2013 Posts: 4174 Location: The Somerset Levels
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Posted: Wed Nov 27, 2013 11:55 am Post subject: |
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I have been told that Cellulose is probably best for someone starting out, and upon reading up on it that maybe sounds right.
I have had a recommendation of 'Jawel' paints, has anyone else used paint from them? |
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MikeEdwards
Joined: 25 May 2011 Posts: 2711 Location: South Cheshire
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Posted: Wed Nov 27, 2013 12:07 pm Post subject: |
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I sprayed the under-bonnet area on a car with Jawel cellulose, no problems that I can blame on the paint. I am not an experienced sprayer by any means so there were issues, but mainly due to me trying to cut corners. |
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peppiB
Joined: 30 Jun 2008 Posts: 686 Location: Newcastle upon Tyne
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Posted: Wed Nov 27, 2013 7:56 pm Post subject: |
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I have used Jawel for 7 years or so, both cellulose and 2K. Great service and colour matching |
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ajlelectronics

Joined: 04 Oct 2010 Posts: 168 Location: Gloucester
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Posted: Wed Nov 27, 2013 10:23 pm Post subject: |
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Rootes75 wrote: | I have been told that Cellulose is probably best for someone starting out, and upon reading up on it that maybe sounds right.
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For your top coats, yes, it's a good choice. Use cellulose primer if you must, but epoxy is superior in every way and will make your task easier as a beginner. It also does not have the dangerous isocyanates of two pack (2K) paints that could kill you. _________________ Evans Waterless Coolants
Find this and more at http://www.classicmicrocars.com
Sat TV / Aerial systems etc: http://www.ajlelectronics.co.uk |
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colwyn500
Joined: 21 Oct 2012 Posts: 1745 Location: Nairn, Scotland
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Posted: Wed Nov 27, 2013 10:53 pm Post subject: |
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Just to avoid confusion, most home restorers seem to go for epoxy primer as the first coat over metal...two-pack but only like Araldite is 2-pack. Next would be your cellulose primer followed by cellulose topcoat. |
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spraydav

Joined: 16 Sep 2013 Posts: 5 Location: Liverpool
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Posted: Thu Nov 28, 2013 1:34 am Post subject: First time spraying |
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It's best to pick one paint system and stick to it, as the primers are developed to work with the topcoats etc. mixing and matching epoxys with cellulose or acrylics or polyeurethanes can cause problems such as reactions or no inter-coat adhesion. Sounds like you've got a large vehicle?? I used to paint wagons with polyeurethane, (no activators so reasonably safe if you use a good mask) and it stays wet long enough to get a decent finish- Call into your local bodyshop suppliers and ask what commercial paints they sell, most places are pretty helpful if you tell them what you're doing, good luck!! Dave |
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colwyn500
Joined: 21 Oct 2012 Posts: 1745 Location: Nairn, Scotland
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Posted: Thu Nov 28, 2013 8:58 am Post subject: |
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Good advice about sticking with one manufacturer. Epoxy might be the exception. Everything I read points to it being effectively inert once cured.and I have found that it's not part of the professionals'normal system because they don't need its ability to keep rust at bay even when not topcoated. It is definitely more of a boat paint but that means it must make sense for our cars. I'm sure it must be what they use on the Forth Railway Bridge. PS. There is speculation that it was something like Jotamastic, an epoxy with aluminium flakes in it, although the bridge paint has glass flakes. |
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Rootes75
Joined: 30 Apr 2013 Posts: 4174 Location: The Somerset Levels
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Posted: Thu Nov 28, 2013 11:48 am Post subject: |
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Thanks for the tips Gents.
My gut feel is to use Jawel paints and if using cellulose use an appropriate primer from the same supplier. The chassis of the lorry is already sprayed with a couple of coats of red oxide so I would like to put a coat or two of cellulose primer on top of that before spraying any top coats. |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4240 Location: South Cheshire
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Posted: Thu Nov 28, 2013 12:07 pm Post subject: |
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I have done a fair bit of painting; the best advice I could give you is to find a local friendly paint supplier.
Choosing the paint is only one part of the process, and only one of may materials that you will need to complete the job. The supplier will give you loads of advice and help recommend what products and combinations to use.
There is quite a big mark up on paint and consumables...local suppliers will do you a better face to face deal
Dave |
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MikeEdwards
Joined: 25 May 2011 Posts: 2711 Location: South Cheshire
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Posted: Thu Nov 28, 2013 12:08 pm Post subject: |
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colwyn500 wrote: | I'm sure it must be what they use on the Forth Railway Bridge. PS. There is speculation that it was something like Jotamastic, an epoxy with aluminium flakes in it, although the bridge paint has glass flakes. |
Yes, but popular rumour is that they start re-painting the Forth bridge as soon as they finish the other end, not desirable in a classic vehicle.
I have heard good things about Jotun stuff, I got some 'Rustbuster' Epoxymastic for underneath the car which I understand is pretty much the same stuff, will look at the Jotun version for the top half perhaps. |
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colwyn500
Joined: 21 Oct 2012 Posts: 1745 Location: Nairn, Scotland
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Posted: Thu Nov 28, 2013 2:03 pm Post subject: |
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MikeEdwards wrote: | colwyn500 wrote: | I'm sure it must be what they use on the Forth Railway Bridge. PS. There is speculation that it was something like Jotamastic, an epoxy with aluminium flakes in it, although the bridge paint has glass flakes. |
Yes, but popular rumour is that they start re-painting the Forth bridge as soon as they finish the other end, not desirable in a classic vehicle.
I have heard good things about Jotun stuff, I got some 'Rustbuster' Epoxymastic for underneath the car which I understand is pretty much the same stuff, will look at the Jotun version for the top half perhaps. |
Mike, that would have been true in the past but they finished a couple of years ago with modern paint and don't plan doing it again for at least 30 years.....that will probably see me out.
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spraydav

Joined: 16 Sep 2013 Posts: 5 Location: Liverpool
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Posted: Tue Dec 03, 2013 12:41 am Post subject: |
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Rootes75 wrote: | The chassis of the lorry is already sprayed with a couple of coats of red oxide so I would like to put a coat or two of cellulose primer on top of that before spraying any top coats. |
Be careful putting cellulose over red oxide- the solvents in the primer could potentially lift the red oxide clean off your chassis!! try a test area before going ahead with a full respray  |
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Roger-hatchy

Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Tue Dec 03, 2013 2:01 pm Post subject: |
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colwyn500 wrote: | MikeEdwards wrote: | colwyn500 wrote: | I'm sure it must be what they use on the Forth Railway Bridge. PS. There is speculation that it was something like Jotamastic, an epoxy with aluminium flakes in it, although the bridge paint has glass flakes. |
Yes, but popular rumour is that they start re-painting the Forth bridge as soon as they finish the other end, not desirable in a classic vehicle.
I have heard good things about Jotun stuff, I got some 'Rustbuster' Epoxymastic for underneath the car which I understand is pretty much the same stuff, will look at the Jotun version for the top half perhaps. |
Mike, that would have been true in the past but they finished a couple of years ago with modern paint and don't plan doing it again for at least 30 years.....that will probably see me out.
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Damn, just bought a new brush as well |
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