Coloring clear plastic (how to?)

darienvader

Well-Known Member
I thermal-formed some Vader lenses the other day with clear plexiglass . . . anyone have a great tip on how to tint this now? I've tried RIT dye and also tried some stained glass dye with little success. The stained glass stuff was pretty decent, but it dried all wavy. The nature of stained glass, right. Since the lens has a nice curve to it, would window tinting film stick to it? Any success stories out there on how you did yours, or do you have any suggestions?
 
In the uk we have 'Dylon' fabric dye. Could be sold in the US.....
One of the types available dyes PVC, and I have used it in the past to dye 6mm clear acrylic.
Only downside is you have to boil it submerged in hot water - so you need to be careful over the acrylic warping/holding shape.
D
 
I used a transparent red paint on the light up part of my Ronon Dex gun and it turned out awesome. You can get the stuff at craft shops, they call it instant stained glass or stained glass paint or something like that, but it works great and I have not been able to scratch it off.
 
I used some of the Tamiya transparent paint on some case lights for my PC and out worked out great.
 
Since the lens has a nice curve to it, would window tinting film stick to it?

I'd bypass on the tint film for a couple of reasons.

Even the slightest curve will fight you tooth and nail to lay flat w/o creasign or bubbling and I was told by guys who install tint for a living that they don't cover plastic, only glass, because plastic seeps gaseous fumes that can bubble up under the film.

I used window tint for my Captain Avenger visor with mixed results.

Here's the original:

cap221.jpg


And here's my finished one with blue window tint:

a12.jpg


I fought with that film, and I kid you not, for almost TWO HOURS to get it to finally lay down halfway decent and I STILL had a crease right above the bridge of my nose and two spots where there was just enough of a weird convergence of curves that it would never lay down.

I had to keep sneaking off, pulling out my ATM card and use it to push down the bubbles...but that only lasted about 10 mins.

I also sampled the Tamiya "transparent", but transparent is in the eye of the beholder. It's not opaque, but you sure can't see thru it, and it ain't "clear".

I've heard from a few sources that the Rit method is the way to go, and when I get a chance, I'm gonna strip the window tint off and try again.

Good luck and be sure to let us know how you make out!

Steve
 
Get a can of "Night Shades" tint spray, its for tinting your car tail lights black. There is a bit of wet sanding involved but I've seen it turn out quite nicely. Apparently the stuff stays tacky for a while though, so you need to do it in a very dust free environment.
 
You can use any colorant that you want. The trick is getting the
plastic hot enough to open the microscopic pores to allow the tint to
penetrate, but not so hot as to melt the plastic.. It's better to tint the
Plastic prior to Vacu-forming.. The results are great.. Good Luck :)
 
If you were able to form clear plexi, why not just get a piece of smoked or tinted acrylic and do it again?

That said, I'm going to go ahead and open a whole can of worms by mentioning that the lenses in the Episode IV helmet were made from clear plastic with some sort of dark amber gel (thin plastic sheet used in lighting rigs) melted into them for tint.
 
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I did a test of this for some Rebel Fleet Trooper visors in a smoke gray, and did some test with x-wing visors in a yellow-amber. The process is simple. Use PETG or Lexan [acrylic] in clear, and vac form the part. Then on the stove, heat a pot of water to scalding but not boiling. Maybe 125 degrees. Mix the RIT dye in. I used black for the Fleet Trooper visors, and a custom blend of yellow and orange for the amber. [two different projects at different times] just drop the part in the warm water and leave it for a while. Come back and check on it in 5 minutes. Dry it off. Your part will have changed color. If you want it darker, leave it in the warm bath longer. Like others have said, don't get the water too hot or it WILL distort your plastic. Think bath water hot. And no more.
 
http://www.callbpi.com/htm_cat/poly_acr.htm


I thermal-formed some Vader lenses the other day with clear plexiglass . . . anyone have a great tip on how to tint this now? I've tried RIT dye and also tried some stained glass dye with little success. The stained glass stuff was pretty decent, but it dried all wavy. The nature of stained glass, right. Since the lens has a nice curve to it, would window tinting film stick to it? Any success stories out there on how you did yours, or do you have any suggestions?
 
Bump. I know it sounds insane and ridiculously stupid, but what about food coloring? I'm doing an ultra-budget Star-Lord helmet (ie. a £0 maximum spend) and I need a surefire way to tint the lenses using only household products.
 
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