Inky ultra flat black paint for border? - AVS Forum
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post #1 of 12 Old 11-27-2006, 12:47 PM - Thread Starter
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Posted this in Tiddler's diy roll-down painted screen thread, but saw it wasn't getting much traction there, and believe the topic is a little broader than just that thread, so I figured I would post generally.

I am looking to paint a black border around my screen. I have a flat black paint, but it just doesn't seem black enough. It seems the ultimate in inky blackness is velvet, but with a roll-down screen, a fabric border interferes too much with the roll of the screen, and artificially creates waves in the screen. Thus, the reason I would like to paint the border.

Is there any way to really get a good light absorbing black paint? Any additives I can add to flat black to help absorb light? I was thinking some texture might help.

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post #2 of 12 Old 11-27-2006, 01:33 PM
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How many coats did you try before you determined the paint wasn't 'black' enough?

Without knowing what you're using, I would think you'd need at least five coats before you would start to see deep black... assuming it is a true black paint.
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post #3 of 12 Old 11-28-2006, 07:02 AM
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Tiddler found adding, I think corn starch, made a very flat black that is good at absorbing any spill. It's not as good as velvet, but it really looked good in his test shots.

"Make everything as simple as possible, but no simpler." - Albert Einstein
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post #4 of 12 Old 11-28-2006, 02:25 PM
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I'd remembered that thread from a while back as well, but couldn't find it when going back to look. Does anyone know where that thread went or, Tiddler, if you are watching this thread, could you repost your forumula?
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post #5 of 12 Old 11-28-2006, 03:07 PM
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Quote:
Originally Posted by dc5
Does anyone know where that thread went?
http://www.avsforum.com/avs-vb/showt...&&#post8316620
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post #6 of 12 Old 11-28-2006, 11:28 PM
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Thanks Clarence, much appreciated! :cool:
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post #7 of 12 Old 11-29-2006, 07:56 AM - Thread Starter
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Quote:
Originally Posted by dc5
Thanks Clarence, much appreciated! :cool:
Yes, thank you.

I had no recollection of that thread until you posted the link. Doh! Stupid brain...

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post #8 of 12 Old 12-06-2006, 05:10 PM
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Krylon Ultra-Flat camoufluage is very black and designed for use on plastics. You can get it at Ace hardware or Walmart.

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post #9 of 12 Old 12-08-2006, 07:14 AM - Thread Starter
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Just to follow up. I had a can of flat black that I used as a base (it just didn't seem very black to me--more like a very very dark gray), and added two things to it: 1. A lot more black from a bottle of Folk Art black that my wife had in her art supplies; and 2. a slurry of corn starch (corn starch and water) that I added. The result was phenomenal--very very black (inky black, just what I wanted) that I painted as a border around my screen. It's not a complete light sucker--any overscan can still be discerned on the painted border, but that is the nature of the beast. Unless you actually use velvet, you just can't get the results that velvet give. Having said that, I am more than thrilled with the outcome:

http://i25.photobucket.com/albums/c9...2/P1020503.jpg

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post #10 of 12 Old 12-08-2006, 07:15 AM
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Looks great Steve... looks like a commercial screen ;)

"Make everything as simple as possible, but no simpler." - Albert Einstein
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post #11 of 12 Old 12-08-2006, 10:22 AM
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Looks good!

How long has it been drying? I've experimented with blacks, and ran across an interesting problem. If the pigment load is too high, the binder can't hold it to the surface after drying is complete - and it cracks and falls off. It can take quite a while for it to happen, too. I painted some sample of deep base with ridiculous amounts of lampblack, and it was a very nice, deep black - for about two weeks. Then it turned chalky and started cracking.

Sorry for the negative note. Hopefully the cornstarch will help, but I'd keep an eye on it.

Garry
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post #12 of 12 Old 12-08-2006, 10:42 AM - Thread Starter
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Quote:
Originally Posted by prof55
Looks good!

How long has it been drying? I've experimented with blacks, and ran across an interesting problem. If the pigment load is too high, the binder can't hold it to the surface after drying is complete - and it cracks and falls off. It can take quite a while for it to happen, too. I painted some sample of deep base with ridiculous amounts of lampblack, and it was a very nice, deep black - for about two weeks. Then it turned chalky and started cracking.

Sorry for the negative note. Hopefully the cornstarch will help, but I'd keep an eye on it.

Garry
Interesting. I'll keep an eye on it. Thanks for the heads up!

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