How large can you stretch a muslin screen? - AVS Forum
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post #1 of 11 Old 07-26-2014, 01:29 AM - Thread Starter
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How large can you stretch a muslin screen? 170 inch 16:9?

I would like a 148"x83.25"screen. But can't find any threads for a screen that big, except for a wall.

My current screen is a Behr Ultra White Eggshell 128"x72" painted wall.

I'm thinking about using real synthetic gesso. Gamblin Grounds and gamasol. It contains barium sulfate and titanium oxide which should work great. I don't understand why no one else does. A really white uniform screen with about 1.2 gain.

The only downside is the muslin needs to be sized with PVA to prevent rot.

http://www.gamblincolors.com/sizes.g...ex.html#ground

Why didn't the title edit?

Last edited by Debonaire; 07-26-2014 at 01:42 AM.
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post #2 of 11 Old 07-27-2014, 06:00 AM - Thread Starter
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Any ideas? I'd really like to go close to ~180", 156"x88.75". 170" is already pushing it with worrying about bow.

Painting a cheap commercial screen may be the only way?

Is the Elite EZ flock comparable to SY Fabrics for blackness, or would the Sable be good enough and figuring a method to attach velvet?
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post #3 of 11 Old 07-28-2014, 10:09 AM
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Quote:
Originally Posted by Debonaire View Post
Any ideas? I'd really like to go close to ~180", 156"x88.75". 170" is already pushing it with worrying about bow.

Painting a cheap commercial screen may be the only way?

Is the Elite EZ flock comparable to SY Fabrics for blackness, or would the Sable be good enough and figuring a method to attach velvet?
You can get Flexiwhite screen material from Carl's in the size you are looking for. You should pay the extra for having it rolled on a tube rather than folded in a box.
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post #4 of 11 Old 07-28-2014, 10:26 AM
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Ahajr gives some good advice.

Muslin is not what you should consider a stretchable material. The Flexi white absolutely is, is easy to work with, and by itself allows for a very presentable image. But better still, it also allows for you to use it as a canvas on which you can apply a high-performance screen coating should the desire or need arise.

To quote James T. Kirk;
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post #5 of 11 Old 07-28-2014, 01:05 PM - Thread Starter
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You can get Flexiwhite screen material from Carl's in the size you are looking for. You should pay the extra for having it rolled on a tube rather than folded in a box.
I think I'll go that route with the grommet option.

But how do you attach velvet to emt conduit? All the threads about it are outdoor.
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post #6 of 11 Old 07-28-2014, 11:14 PM - Thread Starter
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Ahajr gives some good advice.

Muslin is not what you should consider a stretchable material. The Flexi white absolutely is, is easy to work with, and by itself allows for a very presentable image. But better still, it also allows for you to use it as a canvas on which you can apply a high-performance screen coating should the desire or need arise.
Ok, cool. Thanks. Never heard of Carl.

Is this stuff similar to the PVC Stewart uses? Or closer to Elite Screen?
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post #7 of 11 Old 07-29-2014, 08:11 PM
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post #8 of 11 Old 07-29-2014, 09:38 PM - Thread Starter
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Originally Posted by ahajr143 View Post
The best solution would probably be a grommet version of that screen to hooks inside a shadow box false wall for a 170-180" 16:9?
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post #9 of 11 Old 07-30-2014, 10:14 AM
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Originally Posted by Debonaire View Post
The best solution would probably be a grommet version of that screen to hooks inside a shadow box false wall for a 170-180" 16:9?
I disagree. The Grommet spacing, as well as the size of the material had better be spot-on to be effective, and to result in the proper degree of stretch within the available space.

Grommets are best used in outdoor applications where the Frame is considerably larger (6" to 8") than the screen material being stretched.

Now yes...if you have the material pre-cut and Grommet'd to a size only 1/2" larger on all sides than the desired viewing area, and use a ring of fasteners set at 3" out, and the grommets were spaced only 1" apart, then yeah, you could approximate the same degree of strech as evenly as you could with staples....and almost as good as the Snaps on a Mfg Screen.

Carls can do it for you that way....but if you ask them they will suggest Staples for your application, so that should tell you what you really need to know here.

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post #10 of 11 Old 07-30-2014, 11:30 PM - Thread Starter
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The problem with staples is that's rather permanent.

The screen would be nearly the size of the wall. So when I eventually move there'd be no way to take the screen without destroying it.

Like I mentioned before, another solution is spray painting an Elite EZframe. The only problem is I wanted to use Baritone velvet. But Elite Screens sprays on flock so there no place to attach real velvet.
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post #11 of 11 Old 07-31-2014, 07:25 AM
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I use Staples all the time, and sometimes I have to remove them. Do they just come off with a fingertip pull? No. But with a staple puller or even a dull knife point....no problemo.

There are other solutions, and the Grommets are one of them.

To quote James T. Kirk;
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