Ceiling White Paint REALLY Works!

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Again: no. Regular white paint like this is not the stuff. It looks dishwater-grey next to high-reflectivity white, as linked in post #16 of this thread.
Let's see if this picture sticks around....

1757302075292.png


It is Daniel's recommendation for paint to use in the taillight housings.
 
Let's see if this picture sticks around....

View attachment 1716451948

It is Daniel's recommendation for paint to use in the taillight housings.
That's my favorite .png file!

We powdercoat lots of white where I work. There are about 15 shades of white. Igloo white. Arctic White. Snow White. Edgar Winter. Blow White. Bob White. It's insane. Is there a color chip I can use to approximate? I could powdercoat reflectors cheaply/easily if they're not plastic.
 

I powdered mine "flat white", but I didn't have anything to compare it to. A lot better than the gray/silver, but I might top it with the ceiling if it could be that much better.

I work with video projection screens. Flat white gives the most accurate color reproduction and the widest viewing area (spreads the light more evenly across the width of the room) so a larger audience has a good picture. There are "high gain" screens that use some reflective properties, you get a brighter picture but in a reduced space more down the middle of the room. These days, customers want to be able to keep lights on in the room, but since projectors don't project black, the black in the picture is the lack of light shining on a white screen. With light on in the room, your contrast goes to hell, so they have made grayish screens to reduce the reflection of the ambient light. The brighter output of modern projectors allow you to "overpower" the gray of the screen, but you still get a tradeoff. Flat white gives the most uniform light reflection. Even a perfectly reflective mirror isn't going to give the uniformity without the complexity of lenses as opposed to a simple dish.
 
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I have a number of headlight mounting buckets that I'm about to de-rust & re-finish. I noticed a long time ago that some sealed beam lamps had the silvering selectively missing, ........the '92 Chebby G10/Sportvan I just picked up has them painted black, some are galvavized, some appear to be painted gray/body color overspray. Is the desired bucket finish affected by the type of sealed beam, i.e. low/high-low/high, or does it not matter?
I know I cleaned up some buckets on a rectangular 4-lamp system, & the bottom of the one pair only had a strip of silvering up the middle, the lamps were brighter new of course.......but seemed better than before w/new lamps. Is the missing silvering intentional to reduce up-scatter light, or just cheapin' out, (I believe they were Wagner Halogens~'90)?
So I just looked at the new H4666 Extravisions I have, reflective silvering missing on the bottom, for the smaller rect. 2-lamp system.....My 1st-gen Dak & '88 ShelbyZ.....so what say You @slantsixdan ??? Should the headlamp bucket be white, silver, gray, black...???
 
I picked this idea up and ran with it. The test subject is my ratty car that I call Jigsaw.
1970 Dodge Charger, taillight housings are all stock, these are incandescent 1157 bulbs with 1095s in each housing toward the middle of the car.
Tail lights:

ZC 1.JPG


This is with the left housing painted with white paint from a spray can.

ZC 2.JPG


Brake lights, same as above...the left side with spray paint.

ZC 3.JPG


House paint in both housings, tail and brake lights:

ZC 4.JPG


Finally, the right side bulbs were replaced with drop in LED bulbs....

ZC 5.JPG


How about night time?
Jigsaw on the right, my other Charger ( Totally untouched housings, silver paint as stock) on the left.
Tail lights:

G MA 2.JPG


I had nobody here to press the brakes in the cars so I enabled the flashers and tried to snap pictures as BOTH cars lights were brightest. Talk about trying to thread a needle....

G MA 4.JPG


Jigsaw is still noticeably brighter with the white painted housings.
Thanks to Daniel Stern for this great tip!
 
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How's longevity of ceiling household interior paint? Or does it go on so chalky its irrelivent? I'm just trying to picture painting something that gets exposed to some heat and atmospheric moisture with house paint? Must be working for you guys... neat find!
 
It is latex paint so it is surely softer and less durable than catalyzed enamel.
It isn't a real involved process. If it doesn't seem as bright in a couple of years, lay down another 2 coats.
 
Kind of funny not funny. A owner sent the cast housing of his rally instrument panel off to be powder coated a medium B5 like blue. After he cured the chassis ground faults, he shinned a flash light at it to see is it on. It was painted white for a reason.
 
How's longevity of ceiling household interior paint? Or does it go on so chalky its irrelivent? I'm just trying to picture painting something that gets exposed to some heat and atmospheric moisture with house paint? Must be working for you guys... neat find!
As Dan stated, it need not be shiny, flat/chalky is fine.....as long as the white coloration is the same. And the color is available in interior/exterior so......
 
I picked this idea up and ran with it. The test subject is my ratty car that I call Jigsaw.
1970 Dodge Charger, taillight housings are all stock, these are incandescent 1157 bulbs with 1095s in each housing toward the middle of the car.
Tail lights:

View attachment 1716456909

This is with the left housing painted with white paint from a spray can.

View attachment 1716456910

Brake lights, same as above...the left side with spray paint.

View attachment 1716456911

House paint in both housings, tail and brake lights:

View attachment 1716456912

Finally, the right side bulbs were replaced with drop in LED bulbs....

View attachment 1716456913

How about night time?
Jigsaw on the right, my other Charger ( Totally untouched housings, silver paint as stock) on the left.
Tail lights:

View attachment 1716456914

I had nobody here to press the brakes in the cars so I enabled the flashers and tried to snap pictures as BOTH cars lights were brightest. Talk about trying to thread a needle....

View attachment 1716456915

Jigsaw is still noticeably brighter with the white painted housings.
Thanks to Daniel Stern for this great tip!
Thx for puttin' the time in on that, now everybody can see why Dan warns against the retro LEDs, .....timing the snap & both 4-ways, with the digital delay, lolol..kudos!
 
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