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Glow in the dark spider web

Printed From: Community Theater Green Room
Category: Producing Theater
Forum Name: Lights and Sound
Forum Discription: Technical discussion
URL: http://www.communitytheater.org/forum/forum_posts.asp?TID=2193
Printed Date: 5/09/25 at 9:13am
Software Version: Web Wiz Forums 8.05 - http://www.webwizforums.com


Topic: Glow in the dark spider web
Posted By: Karin
Subject: Glow in the dark spider web
Date Posted: 12/31/06 at 8:39pm

I would like to construct a 6 by 6 foot spider web for one of our scenes. I would like it to glow in the dark (using 4-5 colors) and was wondering if anyone had any experience with this.  I saw some glow-in-the-dark paint on the internet but don't know if this would work.  Has anyone used glow-in-the-dark paint with a black-light?  Any ideas or suggestions would be appreciated.

Happy New Year all!!  Star



Replies:
Posted By: Gaafa
Date Posted: 1/01/07 at 5:08am
I have never had the need too use more than one colour  using the invisible fluoro paint, however if the Glow paint is the same & goes on as a translucent, I would imagine colour separation is needed, although you could experiment with palette mixing.
When you paint with the translucent type, use a blacklight fitting to assist visibly, while applying it.
Also depending on wether you are using the black light fluoro tubes or UV cannons [floods] for the effect. This will also dictate the level of the stage lighting state that can be used effectively. Remembering that the fluoro tubes give 360 degree light, while the UV cannons are more directional.
With the fluoro tubes use an electronic starter rather than a normal flicker striking one.
Also if you use Lee 181 Congo Blue colour gels in the general lighting state, this will assist the coverage, when turning on the blacklight & dimming out the general coverage. Smoothing out the snap on of the blacklight.
Ensure you blacklight tubes which are in the UVA 315-345nm [longest wavelength]. The danger area is 280-315nm UVB. Shorter wavelengths fall into the UVC area  which is used to sterilise.



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      Joe
Western Gondawandaland
turn right @ Perth.
Hear the light & see the sound.
Toi Toi Toi Chookas {{"chook [chicken] it is"}
May you always play
to a full house}



Posted By: bmiller025
Date Posted: 1/02/07 at 1:17pm
Another suggestion for you - keep in mind that the effect is only going to work if the rest of the stage is almost totally dark. As Joe suggested, general lighting with L181 will definitely make it dark enough, but you won't see very much.
 
I am not sure you need to go the blacklight route. You can do a whole lot with very tightly focused conventional lighting on a very dark stage.
 
Remember that there is a difference between flourescent paint and phosporescent paint. Flourescent paint reacts to black light, and phosphorescent literally glows in the dark. The latter stuff doesn't glow very brightly, especially if you are working in a large theater. To make it glow when it is dark, you need to blast it with bright light beforehand.
 
 


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http://www.brianmiller.biz/BrianDesign.htm



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