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post #1 of 4 Old 05-27-2013, 01:09 PM - Thread Starter
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We are avid outdoor movie enthusiasts and anytime you can grill and chill with a bunch of friends is a good time. I currently use a 130" BOC screen that is left outside 24/7 (I live in Phoenix) and it' works great. We are moving back to our home in Oklahoma where I have much more room, thus a bigger screen is in order. I'm a fan of permanent outdoor screens and I don't think BOC will hold up to the weather in OK. I'm looking at using MDO plywood as the screen surface. It's waterproof, paints well and minor hail stones probably won't hurt it. I'm wondering if there is a paint formula that will hold up being exposed to weather 24/7? I'm using an Epson Powerlite Presenter (2500 lumens. 3000:1, 1280 x 800, built in dvd player and speakers). This will be a new build so I can set the projector where ever it needs to be. I'm hoping to go 150" - 165" diagonal. I know the formulations discussed here are aimed at indoor theaters, but I thought I'd ask. I figure my worst case scenario is Behr Silver Screen in an exterior grade paint. Any ideas will be appreciated. I attached an image of the area where the screen will be. It will be nice - a permanent theater area that doesn't take up the back yard and since it is an unused part of the yard, I can do what ever I want with it (so she says!)
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post #2 of 4 Old 05-27-2013, 07:10 PM
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There is a way to adapt the base Paints to be water resistant, even somewhat UV resistant, but the logistical issues is that the Exterior Enamels and Polyurethanes are Flammable paints, and the Reflective paints to mix into them are as well.

So that means tougher Mixing, and cautious spraying. (...It won't be a Roll-on solution...)

There are a very few commercially made Screen paints that can fit the bill, but they are extremely expensive (300.00+ per 2 Liters) and still are essentially the same thing I'm suggesting to cobble together yourself. They are Oil based, chock full of Petroleum Distillates that are use for "Fixers" and Drying enhancers, and the Fumes are both very flammable as well as very toxic to be around. Even skin needs to be covered because such paints can be absorbed into / through the skin.

Basically, the mix would be very similar to Automotive paints. And it would not be inexpensive. Probably 4200.00 minimum in the amount needed t5o do your desired size screen.

Or you can simply used Water Based Exterior Enamels and resign yourself to giving the Screen surface a re-coat every 2-3 years...which ain't so bad.

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post #3 of 4 Old 05-27-2013, 10:43 PM - Thread Starter
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Thanks for the info. I figured my best bet was simple exterior paint but I thought I'd see if there was a way to adapt the interior mixes. $4200 is a bit too pricey. I've been pretty happy with my "Silver Screen" interior screen. I'll probably use that in an exterior paint. If I prep and seal the MDO correctly, I should get quite a few years out of it.
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post #4 of 4 Old 05-28-2013, 02:07 AM
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Quote:
Originally Posted by jwh92020 View Post

Thanks for the info. I figured my best bet was simple exterior paint but I thought I'd see if there was a way to adapt the interior mixes. $4200 is a bit too pricey. I've been pretty happy with my "Silver Screen" interior screen. I'll probably use that in an exterior paint. If I prep and seal the MDO correctly, I should get quite a few years out of it.

Whoa. Big Typo. That was supposed to be $420.00

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