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Lumenlab > LLAVS: Lumenlab AVS > Home Theater > Home Theater Screens
pb_maxxx
ahhh... the weekend is upon us... and i'm sure that soon some of us will be busy making that perfect LF screen to grace our home theaters.

so i hoping to start a page to give every one tips and pointers from those of us who have tried and succeed... or failed... or just things to help or avoid along the way.

------------------------------------------------

the first tip i'll give and certainly a VERY important one is... do not spray too many layers on. you should spray only 2 layers of even 'coverage'... with some feather dusting where it's needed.

MM, hopefully you can describe 'coverage' better than i.

here is a pic of a piece of acrylic with RS-MMMaxx sprayed on it.



using the TV as a mirror and placing the acrylic on top with the RS-MMMaxx topcoat facing me... we replicated exactly what will happen...



interesting?! isn't it! biggrin.gif
but look again at the bottom of the strip... it has 2 addition thin coats of RS-MMMaxx on it. no amount of LF is going to help you there.

here's another pic where the difference between 2 and 4 coats makes all the difference in the world.



and here's a pic of my HT...



enjoy.
paladin
That's very good information! If I recall correctly, the entire mix of
ingredients makes roughly 2 gallons. About how many ounces are
used for the two layer spray on a typical screen?

Any chance of us buying a single quart of it pre-mixed from you
or MM?

This might seem stupid, but should the acrylic be horizontal or
vertical when spraying?
pb_maxxx
If you mix the contents in the correct ratio... you'll end up with almost one gallon of paint.

because of the water based urethane... once it's mixed... it'll have a fairly short shelf life.

my acrylic sheet is horizontal and i spray mine in a horizontally pattern.
it usually takes me about 2 - 2 1/2 quarts of paint.
mikyd1954
QUOTE (pb_maxxx @ Oct 7 2005, 09:01 AM)
If you mix the contents in the correct ratio...  you'll end up with almost one gallon of paint.

because of the water based urethane... once it's mixed... it'll have a fairly short shelf life.

my acrylic sheet is horizontal and i spray mine in a horizontally pattern.
it usually takes me about 2 - 2 1/2 quarts of paint.
*

can you compare and contrast(shudder-memories of grade school) mirrored mylar under plexiglass to an acrylic mirror as the base for maxmud?
brianabs
Oh No! I can't see the pics. ohmy.gif Any suggestions.

Phew! I can see them at home. We are having some DNS issues at work. Probably could resolve the domain that was hosting your pics.
pb_maxxx
QUOTE
can you compare and contrast(shudder-memories of grade school) mirrored mylar under plexiglass to an acrylic mirror as the base for maxmud?


i wish i could. but just like you guys... i'm too broke to afford the acrylic mirror. huh.gif unsure.gif
gregeast
Off Topic: I was thinking I might use the leftover MMudd to paint my garage walls with, that ought to make it nice and bright in there!

Greg
pb_maxxx
QUOTE (gregeast @ Oct 7 2005, 10:14 PM)
Off Topic: I was thinking I might use the leftover MMudd to paint my garage walls with, that ought to make it nice and bright in there!


not unless you want your garage to GLOW as if aliens had just landed a spaceship in there! laugh.gif biggrin.gif
mikyd1954
QUOTE (pb_maxxx @ Oct 7 2005, 08:03 PM)
QUOTE
can you compare and contrast(shudder-memories of grade school) mirrored mylar under plexiglass to an acrylic mirror as the base for maxmud?


i wish i could. but just like you guys... i'm too broke to afford the acrylic mirror. huh.gif unsure.gif
*


so have you done the mirror mylar then?
pb_maxxx
yes, that's the only one that i have done...

here's a pic...

there's an incredible amount of ambient light in the room. i turned on every light in the room and any adjoining room where light could seep through... the LF screen is in the center. on the left is durotherm. on the right is BO cloth. obviously the durotherm and the BO are at a disadvantage because most of the color saturation is in the center. however, neither of them should be that 'white' either... the durotherm performs very badly compared to the BO.

the side of the LF board is not painted... notice now the image is reflected off the mylar and on to the BO. interesting isn't it?!

LF Pic
SonicWonder2000
QUOTE (pb_maxxx @ Oct 8 2005, 01:32 PM)
yes, that's the only one that i have done...

here's a pic...

there's an incredible amount of ambient light in the room.  i turned on every light in the room and any adjoining room where light could seep through... the LF screen is in the center.  on the left is durotherm.  on the right is BO cloth.  obviously the durotherm and the BO are at a disadvantage because most of the color saturation is in the center.  however, neither of them should be that 'white' either... the durotherm performs very badly compared to the BO.

the side of the LF board is not painted... notice now the image is reflected off the mylar and on to the BO.  interesting isn't it?!

LF Pic
*


What projector are you using? Even the BO cloth has a viewable image with all that ambient light ...
jmrguy
Can you post the same picture only with a more evenly lit projected image (and with more colors)? Thanks.
maler23
Is this HVLP sprayer sufficient for our needs? It comes with a compressor as well. I'm sure professional painters would sneer at it, but considering I will probably never use it again:

http://cgi.ebay.com/ebaymotors/NEW-HVLP-SP...582377376QQrdZ1

Having dumped a ton of time and money into the projector, I don't really want to get into receipt crawl with a new screen project.

Having said that, I wouldn't mind paying someone here to "rent" theirm spray kit(paying for shipping, etc..)

Also, has there been any word from Pb_maxxx, MississippiMan or some other enterprising fellow making some pre-mixed kits for people? Is the formula still in flux?

(as you can probably tell, I'm a bit DIY'd out..)


cheers!

-Jude
pb_maxxx
the biggest thing with any sprayer is just learning how to use it.

i personally use an electric sprayer. it is very high quality one that i've had for over 10 years... so i know how to use it.

what ever HVLP sprayer you decide on... just make sure you get some practice with it on a larger size board. if can get a good finish with 4'x4' board... you should be just fine on a 4' x 8' board.

--------

the RS-MMMaxx mix is not in 'flux' at all. so far no one has come forth with a significant change. the only change i've made was to 'subsitute' the Behr Opal Pearl which cost $20 a quart... with the Delta Ceramcoat "Pearl" which cost $4 for an 8oz bottle. Also based upon whether you are spraying it or rolling it... we decrease the water just slightly if you rolling it.
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