IT DOESN'T MATCH

jcclark

Oldtimer
I painted a front bumper and fender and they didn't match so
I mounted them on the car, sanded the clear with 600 and painted them
together and they still don't match, adding more base coats doesn't
make it any better. what the heck???
 

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It very well could just be shadows from the overhead lights deceiving you. I know it looks like the panels line up, but any slight variation will cast a shadow and fool your eyes.

if it was a metallic I would say possibly the mettalics were laying differently from one substrate to the next(static).
 
Ive seen signs in paint shops that state.."we will not gaurantee paint match on bumpers"..Not so sure why, but this has been discussed before(i think)_..Apparently it has something to do with the "plastic"
 
Ive seen signs in paint shops that state.."we will not gaurantee paint match on bumpers"..Not so sure why, but this has been discussed before(i think)_..Apparently it has something to do with the "plastic"
It's from bumpers being painted off the car. 75% of late model stuff is metallic so orientation and flop of the metallic can be an issue. Sometimes it is from the color/shade of the bumper seal/primer coat being different than the shade of the undecoat on the rest of the car. Stuff painted separately can also be a factor. Usually a combination of all of these. Generally when doing collision repair and doing the bumper the same time (off the car but sealed/painted at the same time) color match is not an issue. The angles and curves of late model stuff often makes it look different though because you see the flop of the metallic differently than you see it on the fender beside it.

@jcclark Looking at the pic it's hard to tell as the fender has some gloss while the bumper looks flat. That alone could account for the difference. Were the bumper and the fender the same shade before base. Meaning did you seal with the same color epoxy or 2K? If not that would account for a difference in shade. If you sealed one and not the other that would also account for the difference.

I would try one more coat of base on the fender and bumper as you have it now. All you can do.
 
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I don't have the experience y'all do but I did paint the bumpers on a van once that was a white pearl color.
They didn't match up great until I had applied the pearl coat. It took more pearl coats in some areas than others.

Just figured I would throw it out there as food for thought. Feel free to throw it in the trash.
 
No metallic, flat base, just before the pearl application.
Both had clear on them that I sanded with 600 before the base.
Clear is the best sealer out there so I don't believe anything is bleeding through.
I added several more coats of base and it didn't change the way it looked at all.
I even added more pearl to the bumper thinking it might lighten it but
it didn't change much.
I've done hundreds of bumpers on cars that I've blended into the adjacent
panel and have never had a problem like this.
 
The fender is steel and the bumper is plastic. The temperature difference and the static difference between the 2 can cause all kinds of weird effect differences like that. I have also done hundreds of bumpers with very few problems, but every once in a while I have had this same problem. Grounding the car may help, as well as using the slowest reducer possible with extra flash time between coats. Then again it could make it worse.
 
I'm leaning towards something about the angles. That trim piece looks closer than the other areas. My advice is that if it bothers the customer is to advise them to walk around the car from the other side.
 
Well, I added more pearl to the bumper edge when I got back to it
and cleared everything. It does look a little better in natural light.
It's going to have to do.
 

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I don't have any answers other than to say that white pearl bumper jobs are the bane of my existence, and the day I get one to match perfectly, I think I will probably retire, because there is no topping that.
If you get that perfect match let me know how it's done so I can pack it in, retire, quit, stop the nonsense, what ever you want to call it!. I'm ready.
 
I once tried to match "white" on my Saab so i can update the bumpers and rockers covers.An auto body shop did several spray outs for free, for me, and could not match the "white"..They also gave me their chip book for the week-end, and i could not find a good match..I then went to a paint shop and they scanned the paint..Given this is a solid, the match was about equal to your match @clark.......Actually, with the current light, the paint match looks "okay"(pic)
 

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I had a real hard time with this color.
Customer supplied a junk yard bumper and fender.
(That was a nightmare in itself)
The color I had mixed by the paint code was way, way to dark
and no alternates any lighter.
It looked like a dark beige, I mixed Toyota bright white with it to tone it down,
I kept mixing and doing spray outs because the pearl lightened it considerably.
I ended up with a 50/50 mix to get to what I wanted it to be, that's
half color mixed with half white, wow. then 5 coats of pearl.
I did the entire side of the car and the customer wants me to do more
when I have time so I have to be able to replicate this later.

I wonder now, when I do the back bumper later, maybe I should lighten
the mix for it? Will it do the same as the front bumper?
I have the old bumper, think I'll do a spray out on that first.
 
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