Last Friday I sprayed my 66 chevelle convertible with Dupont Chromabase zinc yellow basecoat and V7500 Chromaclear clearcoat. It looked great in the garage. No runs, no drip no errors. It was my first paintjob and i was really proud of it. I had to go out of town for 6 days and when I got back and rolled the car out of the garage, I could see color differences. I am sick. I want to reshoot some more basecoat and clearcoat on it to get it right. What should I do? Can I just resand the clearcoat to get the basecoat to stick or should I sand, reprimer and then reshoot it? What grit should I use to resand the clearcoat? Any help would be greatly appreciated. Is there a time before it is too late to just reshoot the basecoat/clearcoat and i have to restart from scratch?

Thanks, Clyde

Theres a trick we use when painting with metallic paints in the yard to eliminate shading. on the final coat of paint before the clear coat we turn the preshure on the gun up to 90 psi(ill have to check with my dad he does the spraying) and spray it one more time, and it evens it out. suprised me how well it worked with a metallic blue we painted the chevy truck with.

The primary problem with the shading was that the sealer that the body shop recommended was dark grey and even though I put 4 coats of color on it, it still doesn't cover. I'm hoping that the fact that the paint has cured will lessen the bleedthrough when i paint more basecoat over the clear.

Clyde

Sand the clear with 500 wet, throw the Chromabase and Chromaclear in the nearest garbage can and get the color in another DuPont product,Spies/Hecker. It will cover perfectly in 3 coats or less without having to use the material wasting "value shading" scam. If you use a good gun(Sata),you won't have to resort to "dusting" or high presure to get the metallic to come out even. While you're at it, get some S/H 8110 clear, apply one coat, sand smooth with 800 wet,and apply one more good coat.Sand with 1500, then finish with 2000, and buff. You will be amazed at how much easier it is with this product to get outstanding, professional results than with the products you were using.
Gordon VM
Restoration Motorsports
http://groups.msn.com/Restorationphotos/shoebox.msnw?Page=1

"dusting" works fine for us, made a 40$ gun spray a perfect looking metallic blue with napas "econline" 80$ a gallon, over their 30$ a gallon primer. The paintjob still looks perfect after a year, minus the ding he put in it when moving. This was all done out in the open field. Its dark or id take a digital pic of it.

I just have to add my two cents worth here.
Yellow has allways and will allways be notorious for NOT covering well.
It is also very much influnced by the color under it, I personally think the sales person at the paint store sold you the wrong Value shade primer/sealer? I would have thought it would be a lite color if not white?
In fact if your color is in the Value shade family it will tell on the lable what Value shade primers and primer/sealers to use.
I would also ask the Dupont people what they think of your problem, as they know far more than most people on this BBS (with a few exceptions)about there products.
I am using the Value shade system on my car and have had no problems with it at all, I also bought a Sharp Platnum gun for 175.00 so I could use my Sears compressor, as I am not going to make this my professon.
I dont feel a 600.00 gun and a 1000.00 compressor to feed it was in order as this may be the only car I ever paint.
I guess it all depend on what your goals are?
I know you can acheve a quallity paint job using the Dupont Value Shade system and a refurbished gun, both will keep you cost down.
But it still aint cheep!!
Just my 2 cents worth.
The Dupont web site is at this address and has alot of usefull info. You can also email there tech. department with your questions.
http://performancecoatings.dupont.com/

T.C.