Will White reduced epoxy as a sealer cover buff 2K enough?

A

adrynalinjunkie

I almost have the entire chevelle ready for sealer and base. I have been spraying a round of gray 2K then blocking with 220. Then spraying a round of buff color 2K and blocking with 320.

I am going to be using HOK PBC32 Tangelo Orange Pearl for my base which looks WAY better over white. I have seen cars at shows and at the track that have Tanngelo orange over gray primer and it is way too dark.

Should I just shoot the white epoxy sealer mixed 1:1:1 with reducer over the buff 2K and then proceded to base after a few hours (to get maximum adhesion)

Or will the %50 reduced white epoxy be too transparent?
If that is the case I will shoot 2 coats of reduced epoxy as a sealer and let it set over night and then wet sand with 600 before I base and clear.

If I do shoot 2 coats of white epoxy as a sealer to make sure the car is white enough, how much should I reduce the epoxy still %20 ?

Also if I do go to all the extra work of shooting 2 coats of sealer and then sanding before base would it be worth it to cut the sealer flat again with 400 dry on a block before wet sanding with 600?

Or would the reduced epoxy still be flat enough to simply wet sand due to the thinning effect of the reducer in the epoxy?
 
I would bet you'll be fine with one coat of the white epoxy mixed 1:1:1 over the buff primer but you could double coat it if need be but there will be a chance of adding texture with the additional coat. I don't think a little bit of texture will matter much with that color though. *Another option is to shoot one coat of white basecoat over the epoxy before applying the tangelo-cheap and easy. Make sure to activate your colors for best durability. Let the sealer induce well for better sprayability. Have you shot any test panels with the tengelo to get an idea how many coats are needed? I would try to avoid having to sand the epoxy sealer if at all possible-it's a lot of extra work.
 
How do I activate my color?
I sprayed over the inner wheelhouse when i had the full quarter off it took 3 coats of tangelo over the spi white epoxy. I added some ice gold pearl flake to the tangelo. It looked so good I hated to weld the quarter on.

I see another test pannel in my future. Maybe the underside of the trunk lid.
 
Just add about an ounce of your clear act. per sprayable quart of base....
 
It's important to spray a black & white sprayout card (available at local jobbers, usually a few are free) to see how many coats of color are needed to get true coverage. This is a step that is often overlooked and poorly understood.

If full coverage, or a reasonable facsimile is not achieved, color matching problems with any future repair are almost guaranteed. If you have created a one-off custom color, be sure to have plenty left over when you are done because you never know what can happen.

When I make a custom color, I record the exact "recipe" so more can be made later.
 
I just did some work for a friend on an old HOK job that was strato blue metalic base covered with purple candy and I pretty much nailed the colormatch in a BC/CC formula, something I didn't think I would be able to pull off but it worked really well. I hate working on tri-stages or the almost covered but not quite jobs. With that Tangelo color I would bet it would take 7-8 coats or maybe more to hit full coverage-would be an interesting test. I wonder what it would look like over solid orange of the same tone.
 
My god 7 or 8 coats? It looks pretty good after 3 coats. It did have some tiger striping that I thought was from the lph 400 with the orange cap.
I will shoot a few test panels tomorrow 1 with 8 coats 1 with 5 coats and maybe 1 with 3 coats. I will try that drop coat on the last pass also.

Any advice on how to shoot the drop coat with the orange cap on the iwata?
 
Bob is on to something here....I sprayed a car with Trublue pearl last year and only applied 4 coats... Inside the booth I had the coverage i needed.... sanded and buffed half of the roof rolled the car outside and the base had not covered... I had to redo the entire job!!! don't put yourself in that position make sure first...
 
tthomp50;18707 said:
Bob is on to something here....I sprayed a car with Trublue pearl last year and only applied 4 coats... Inside the booth I had the coverage i needed.... sanded and buffed half of the roof rolled the car outside and the base had not covered... I had to redo the entire job!!! don't put yourself in that position make sure first...
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Wow that would suck. Better to be safe than sorry.

I bought 6 quarts of tangelo and I am painting the engine and trunk lids and the tail pannel a different color. So I have allot to spare!
 
You know I did shoot a sport bike Lappis blue metalic from HOK and I lost count how many coats I sprayed.

I just kept spraying base coats until I ran out of base and it turned out perfect.
 
adrynalinjunkie;18705 said:
My god 7 or 8 coats? It looks pretty good after 3 coats. It did have some tiger striping that I thought was from the lph 400 with the orange cap.
I will shoot a few test panels tomorrow 1 with 8 coats 1 with 5 coats and maybe 1 with 3 coats. I will try that drop coat on the last pass also.

Any advice on how to shoot the drop coat with the orange cap on the iwata?
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If you're testing to see when full coverage is achieved setup a test panel that is half black/half white, shoot and flash untill you see how many coats it takes to hide both the black and the white.
 
Check hiding like Bob says, full sunlight and looking at an angle is the best way to check. If too many coats are required, a similar appearing ground coat with good coverage should be used for the first couple of coats, this should reduce the number of required coats to a manageable level. Ideally, a ground coat can be made that allows far less of the actual basecoat to be used, but still allows an almost perfect illusion of full coverage. That is another reason to make at least one full coverage test panel, so you have something to compare later experiments with. A bright orange might be a good start, as mentioned. The older oranges covered real good, but they had chromium in them, lol.
 
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