AVS Forum banner
1 - 20 of 540 Posts

·
Registered
Joined
·
39 Posts
Discussion Starter · #1 ·
Let me preface my questions with a little backround:


I have a 125" MDF screen with a Sanyo Z-3. With a 3/8 nap roller I rolled two coats of primer and two coats of UPW High Gloss enamel with the board flat on the ground. Between each coat of primer and UPW I used a wet sanding sponge over the entire surface to smooth out any roller marks and bumps, but I didn't completely sand it smooth to the touch. I now have the board permanently mounted on the wall (long story) but have not yet applied the two coats of RS-MMMaxx or sanded the final coat of UPW. I plan on renting a sprayer, practicing with it and spraying it in place on the wall. I plan on renting a HD sprayer, and I hope it's up to the task.


Now to the questions...


I notice that the final coats of UPW has left somewhat of a "texture" on the board. When projected upon, there is a sheen of hotspotting over the entire surface of the board, but it's only noticeable from looking at the board straight ahead from your sitting position. I assume this is caused by the small "bumps" that have not yet been sanded and the UPW gloss. Am I correct in assuming this or is my paint job pure crap?


Should I sand this final layer until is is smooth to the touch? Should I just even everything up with the sponge or should I get out the palm sander and work it?


Should I still use two coats of RS-MMMaxx with the sprayer or more? Should I add 4 more oz of Distilled Water for spraying or more? My current mix is:


1qt Behr Ultra Pure White Flat Exterior (HD)

12 oz. Behr Deep Base Flat Exterior (HD)

3 (8oz) bottles - Delta Ceramcoat Metallic Silver #02603 (Michaels)

1 (8oz) bottle - Delta Ceramcoat Pearl #02601 (Michaels)

16 oz. Minwax Polycrylic Satin Finish (HD)

12 oz. Distilled Water


Should I sand in any way the RS-MMMaxx final coat or use as is?


Thanks guys!
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #2 ·
Thanks bro, I really do appreciate the help.


One other thing. I know this was in a thread somewhere, but I can't find it.


What does my sprayer need in order to lay the mix on correctly and what nozzle should I use?


Would the $60 HD sprayer do the trick?
 

·
Registered
Joined
·
59 Posts
This is an amazing formula, anyone who wants to do a DIY screen, by rolling or spraying the screen this could not be any easier, and you are assured that it will compete with expensive screen materials.


HIGHLY recommended!!!
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #4 ·
I'll post up some pics when it's done, but I'm going to wait the full week after completion to give it the benefit of the doubt.



Any requests for a particular screenshot?
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #5 ·

Quote:
Originally Posted by pb_maxxx /forum/post/0


wow have you got a lot of patience... 'ya mind sharin' some of that with the rest of us?!

I didn't say I wouldn't be watching for a week, just posting screenshots
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #6 ·
Finished the last coat on the RS-MMMaxx screen last night. It comes out as a light grey that is "almost-but-not-quite" shiny. I wouldn't realize that the RS-MMMaxx is grey if it were not for the UPW coat to compare it to.


The RS-MMMaxx screen was sprayed on in 3 coats over a well sanded base of primer and two coats of UPW High Gloss enamel.


Even without the proper cure time I'm liking what I see. I would put the gain closer to 0.8 rather than 1.2 or so, but I have yet to hit it with a sanding sponge (not sure if I will as the sprayed on RS-MMMaxx is pretty smooth). The ambient light qualities are clearly there. There is no viewing cone whatsoever.


I did have to adjust gamma and brightness very slightly to get the punch that I like, but the colors are vibrant and the shadow detail seems quite good. Granted alot of this has to do with the projector, but so far this beats any of the previous matte white screens (and the cheapy one that comes with the 4805). To clarify, I am using a Sanyo Z-3.


Cheers
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #7 ·

Quote:
Originally Posted by pb_maxxx /forum/post/0


good feedback on all accounts and certainly what folks need to hear from a nuetral member. but couldn't you have given me .9 instead of a .8 gain?!

Since I have nothing to measure the actual gain, I could give you .9 easily
The truth of it is, the gain is somewhat less than matte white.... soo, it's

I'm not sure why either, as the mix is BARELY grey. Perhaps the lack of a viewing cone... ie, the light is dispersing in all directions due to the SM instead of directly at the viewer. Either way, it's MORE than bright enough with my 800 ANSI lumens rated projector.


I'm still fiddling with the colors and such, but I'll report back when I get it where I like it and post some screenshots. I can tell you already that what I am seeing has been represented in the numerous "other" screenshots on this forum about the mix. I have no complaints.


thanks pb_maxxx and MM


(by the way, I don't know them, nor am I on their payroll :p )
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #8 ·
I wouldn't mind getting ahold of Benven's "Super Grey" formula to do my own testing and comparing with... I would definately give them both a fair shake.
 

·
Registered
Joined
·
594 Posts
PWRDrill, I am putting the fianl touches on the mix. Keep an eye out on the dark gray thread for more info.
 

·
Registered
Joined
·
397 Posts
So now I'll have to feather in less than 8 oz, accounting for what I've already used out of the original mix in the can. Nah, I'll just dump the whole thing in there. If doubling the amount is good, an extra ounce won't kill.
 

·
Registered
Joined
·
39 Posts
Discussion Starter · #11 ·

Quote:
Originally Posted by psennett /forum/post/0


So now I'll have to feather in less than 8 oz, accounting for what I've already used out of the original mix in the can. Nah, I'll just dump the whole thing in there. If doubling the amount is good, an extra ounce won't kill.

I wouldn't bother. PB forgot to mention that you'll probably be losing a bit of the good black quality of the screen by whitening it up.


The mix is pretty damn good where it is imho...


till they kill PB, or something better comes along... (what movie?)
 

·
Registered
Joined
·
31 Posts
Maybe I missed something. Is this formula a good choice for light controlled rooms? I won't have any significant ambiant light.


If not, than any other suggestions?


As always, thanks.


Laz
 

·
Registered
Joined
·
34 Posts

Quote:
Originally Posted by LazMan /forum/post/0


Maybe I missed something. Is this formula a good choice for light controlled rooms? I won't have any significant ambiant light.


If not, than any other suggestions?


As always, thanks.


Laz

The other part of light control is the color of the surfaces in the room. If one has light-colored walls and ceiling (like I do), then, even with no external light spillage, the projected image itself may light up the room to such as extent as to start washing out the blacks in the image. Silver- and gray-screen solutions help in preventing this.


There may be other benefits in the mix, even for completely light controlled rooms, but not having tried it, I can't say for sure.
 

·
Registered
Joined
·
31 Posts
Oh no, another formula: LL?


Right now I have very bright yellowy walls but will be paiting the ceilings and walls some very dark colour. I'm thinking chestnut or burgundy. Who knows.


I have a 1100 lumen projector (ae900) in low mode, but still quite bright for my small room.


I think I'll stick with the RS. But of course, that's a bit of a guess.


Thanks again,


Laz
 

·
Registered
Joined
·
397 Posts
Does the soooooper-secret coming involve a mirror?
 

·
DIY Granddad (w/help)
Joined
·
24,747 Posts
Certainly MY version does. And speaking for pb_Maxxx I feel safe in saying that his personal efforts will follow suit. But for the "Mirror" challenged, the revelation will still perform well in it's own right on a wall or baord.


"When" it's released, that is, and that is still under advisement, consideration, and will happen when there is no more "tinkerin' " to be done.


In my mind and seculative thinking, that is still two/three weeks off. But don't hold me to that timetable, just use it as a jolt of 'hopefullness'.


Thanksgiving is a wonderful time to be "thankful", and comes in plenty of time to still allow one to herald in Christmas & the New Year with a new Toy.
 

·
Registered
Joined
·
31 Posts
Anyone know where I can get the Delta Ceramcoat paints here in Toronto? Or, are there alternatives, particularly Behr alternatives?


Thanks


Laz
 
1 - 20 of 540 Posts
Top