Yellow, how many coats required?

[mickbench]

I've not worked with yellow before, and i've seached and it appears that yellow is very transulcent, and you should apply many mist coats to build the paint up.

I applied 4 mist coats of paint (Tamiya TS cmel yellow), all pretty light really, last mist was a little bit more coverage, and then I applied a final wet coat. Not much point if giving a picture of what has happened, as I'm sure most are aware of paint pulling away from panel lines.

I waited 15 minutes between coats, and then a full 90 minutes after the final mist coat, then I applied the first wet coat. This is where I noticed that the paint has pulled, not much, but you can see it.

This is now 5 coats of paint.

Yellow is damn hard to lay down, but before I lay down the final wet coat, I like two heavy coats to allow me some room to polish out the paint, and not burn through to primer, should I lay down anymore mists before hand, as I'm not going to lay anymore coats down now until tomorrow night.. Normally my paint process is to lay down 2 mists, 1 heavy mist and a wet coat, then a further mist follow by very final wet coat. This gives 5 coats in total.

With yellow I'm up to 5 already, another mist, and very final heavy wet makes this 7 coats.. Too much paint????

[RallyRaider]

Probably not of much help given you've already started. But here is what I did when I used yellow on a body for the first time on my GT40 recently. First I primed with regular grey primer then applied a white base coat. Only after I had achieved a uniform white finish did I start with the yellow. Think I used two or three thin coats followed by a final wet one. Had no problems at all.

Since, as you say, the yellow is translucent, it needs the bright white underneath to bring the full brilliance out.

[RallyRaider]

Oh and I used an airbrush for the first light coats. That definitely makes a difference with the paint on the edges and panel lines too. You can control exactly where you want the paint to go, much more accurate than a spray bomb.

[mickbench]

Originally Posted by RallyRaider

Probably not of much help given you've already started. But here is what I did when I used yellow on a body for the first time on my GT40 recently. First I primed with regular grey primer then applied a white base coat. Only after I had achieved a uniform white finish did I start with the yellow. Think I used two or three thin coats followed by a final wet one. Had no problems at all.

Since, as you say, the yellow is translucent, it needs the bright white underneath to bring the full brilliance out.

I started with a pure white plastic body, so laid a thin coat of white primer, and that was it.. My primer was thin, and I missed the second primer coat.

Tomorrow I'll put another coat on, but it perhaps won't be a REALLY wet coat, more of a coverage coat, and I'll just have to polish the orange peel out, if I get any... Darn hard to apply yellow.. Why did I select yellow...???...!!!!!!

[mickbench]

Just done some more seaching - cadguy had the same problem. http://www.automotiveforums.com/vbul...=tamiya+yellow

Same colour as me, camel yellow. My body details are not buried in paint yet, and I've applied 5 coats already. I'll apply another mist to cover the lines tomorrow, and leave for three days like he did, and then hit it with one more mist coat.

If that don't work - Brake Fliud bath it is..!! Bah..!!

EDIT - Shaking my head - I should learn to search better. 360spider had the same problem with camel yellow. Bah..
http://www.automotiveforums.com/vbul...t=camel+yellow

[RallyRaider]

Definitely sounds like decanting the paint and using an airbrush might be the way for you to go then. If you have an airbrush that is. If pros like Alex and CADguy are having trouble with Camel Yellow there must be something strange going on!

[drunken monkey]

or it might be a veeeery sneaky ploy by tamiya to sell more yellow paint....

[CADguy]

That Tamiya Camel Yellow was some tricky stuff.

Mist some coats on that stay in the panel lines and let them FULLY dry between coats. Just plan on some extra polishing work, as the mist coats will give you a less than glass finish.

If you get a nice uniform yellow, you may want to spray clear over it, if you're worried about polishing through. AGAIN, mist coats only. A wet clear coat will pull the paint out too.

Good luck. If you have success, let us know what worked for you.

[mickbench]

Originally Posted by CADguy

That Tamiya Camel Yellow was some tricky stuff.

Mist some coats on that stay in the panel lines and let them FULLY dry between coats. Just plan on some extra polishing work, as the mist coats will give you a less than glass finish.

If you get a nice uniform yellow, you may want to spray clear over it, if you're worried about polishing through. AGAIN, mist coats only. A wet clear coat will pull the paint out too.

Good luck. If you have success, let us know what worked for you.

Yeah - I have already made a plan for tonight. I'll mist some more coats on, but I'll skip the final wet coats, and I'll have to polish the surface out. Thanks for the replies, I'll keep you all posted.

[mickbench]

Phew - This Tamiya Camel Yellow might be a loverly shade of yellow, and looks superb on the old S2000, it's a bloody nightmare to apply.

Just applied now my second mist (these are THIN coats) and it's now all looking the same colour, but the paint is not as smooth. It's not orange peel, it just looks a little duller then what a wet coat looks. Hope 3200 then 4000, followed by 6000 - 8000 and finish compound can bring a good shine on, as I'm only going to apply one more slightly heavy mist to put a good amount of paint on, to allow me to polish the hell out of it.

Just started the underbody.. OMG... This is just sucking the paint up. I'm on my second can already, and with the body, mirrors and undersurface I've got half a can left, and still many coats for the underbody to go, as well as a final coat for the body. Door mirrors are done.

At this rate, this is going to be a full two cans.. Just WFT..!! Hardest paint job I've evered attempted..!!

[bhop73]

I saw some thread where someone was painting a body red. He painted the inside of the body black and it made the red way more deep looking. Maybe this could help out with the yellow as well?

[mickbench]

Originally Posted by bhop73

I saw some thread where someone was painting a body red. He painted the inside of the body black and it made the red way more deep looking. Maybe this could help out with the yellow as well?

That doesn't sound a bad idea actually, as I can see through the yellow if I put the body up against some light. Well, it's nearly covered now, and the panel lines look better, details are not buried in paint, but looks like the pearl clear coat I was going to do is now out of the question.

Far too many layers now to put anymore on. Its had like 6 mist coats of paint and one heavy. 7 coats now..!! Ah well. Don;t think I'll be rushing to paint another yellow body..

[freakmech]

well this is just great, i am about to spray my Gallardo Chrome Yellow and now you've got me all freaked out i always heard red and yellow were difficult but ive never had much trouble with red. it does tend to seperate on edges so im just careful to use very light coats and as Phil said i usually start by spraying a light mist on panel lines and hard edges before doing complete coats and it works good.when i go to sand and polish final coat ive learned the hard way to mask of difficult areas so i dont go through to the primer. good luck, and im sure you've learned alot so dont be discouraged!

[RallyRaider]

That translucency would have been reduced by a regular grey primer first, then the white. But on the downside that means more coats of paint.

[primera man]

Camel yellow is one of the yellows i stay well clear of because of the reasons you point out....it does not cover well.
I've tried all sorts, from light coats to heavy coats and still get the same out come.
Chrome yellow is by far the better to use if you can. It covers alot better.
The only way i fixed the camel yellow problem was to spray alight base coat of chrome yellow first then start applying the camel yellow