Retroreflective paint or spray for DIY high gain screen - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 8 Old 08-11-2011, 12:08 AM - Thread Starter
Senior Member
 
Russell Burrows's Avatar
 
Join Date: Oct 2007
Location: no mans land aka mexican dmz
Posts: 422
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Any body using this stuff for DIY screens??

Thanks.

Russ.

DIY beats store purchased.
Russell Burrows is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 08-11-2011, 05:23 AM
AVS Special Member
 
airscapes's Avatar
 
Join Date: Dec 2008
Location: Philadelphia
Posts: 4,579
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked: 107
I looked into this and asked about it. I was told it would be next to impossible to get it even. After looking at a manufactured retro reflective screen surface under a micro scope I agree.
I even ordered some samples of a product used for making lettering for trucks and signs. That stuff did not work for screen use either.
airscapes is offline  
post #3 of 8 Old 08-11-2011, 06:20 AM
AVS Special Member
 
threed123's Avatar
 
Join Date: Oct 1999
Location: Troy, MI, USA
Posts: 2,473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 35
The beads you can get tend to be too big for screen projection and tend to make the image smear (fuzzy) from what I've read in the past. Dalite uses micro-bead process for their High Power screen that does the right job for relatively low cost.
threed123 is offline  
post #4 of 8 Old 08-11-2011, 08:42 AM - Thread Starter
Senior Member
 
Russell Burrows's Avatar
 
Join Date: Oct 2007
Location: no mans land aka mexican dmz
Posts: 422
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
What size in microns are the Da lite beads??

I am noticing many new products using microbeads:

http://www.dcpindia.com/reflective.htm

DIY beats store purchased.
Russell Burrows is offline  
post #5 of 8 Old 08-11-2011, 09:59 AM
AVS Special Member
 
threed123's Avatar
 
Join Date: Oct 1999
Location: Troy, MI, USA
Posts: 2,473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 35
I can't find any specs on the High Power,however, I know from past that the beads are embedded in a special emulsion that clings to vinyl and is washable. I think it's more than just beads, you have to have an suitable emulsion to evenly spread the beads across the screen surface. I'm guessing this emulsion would have to be transparent to avoid uneven light reflection and over a white vinyl surface for uniform color characteristics.

I encourage trying to to duplicate yourself, but get ready for lots of frustration. Mica angular reflective craft paints (and aluminum in some cases) mixed in white/grey wall paint and Minwax Polycrilic as described on this board are proven choices and work very well--without the need to experiment.
threed123 is offline  
post #6 of 8 Old 08-11-2011, 12:56 PM
AVS Special Member
 
airscapes's Avatar
 
Join Date: Dec 2008
Location: Philadelphia
Posts: 4,579
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked: 107
Quote:
Originally Posted by Russell Burrows View Post

What size in microns are the Da lite beads??

I am noticing many new products using microbeads:

http://www.dcpindia.com/reflective.htm

Here are a couple of up close and personal photos of the dalite fabrics.
discontinued 2.8 and 2.4.. better to just buy the screen if this is what you want.


airscapes is offline  
post #7 of 8 Old 08-11-2011, 01:28 PM
AVS Special Member
 
threed123's Avatar
 
Join Date: Oct 1999
Location: Troy, MI, USA
Posts: 2,473
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 35
Excellent Doug. Note how the beads are about 1/3 exposed--very important.It would be very difficult to create an emulsion (paint--probably not, maybe a polyurethane) this thin without technology.
threed123 is offline  
post #8 of 8 Old 08-16-2011, 12:38 PM
AVS Club Gold
 
MississippiMan's Avatar
 
Join Date: Nov 2002
Location: Byhalia, Mississippi. Waaaay down in the Bottoms
Posts: 14,640
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 44 Post(s)
Liked: 205
The RR properties inherent on a DaLite HP Screen (...both good & bad...) can be effectively duplicated by using certain Silver Metallic paints that are partially masked with a translucent emulsion

DIY'ers have created some real "Beamers" with extremely narrow viewing cones...however most of such screens were intended for pretty low lumen PJs ensconced on narrow rooms with limited seating.

You can find many materials that have similar properties, but very few that will not bounce the PJs reflection back at you like a searchlight reflecting off a Mirror.

To quote James T. Kirk;
"I'm laughing at the superior intellect"
MississippiMan is online now  
Reply DIY Screen Section

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off