Hello!
OK...so if we are talking about a UST and the desire for some ability to resist Ambient Light, we need to approach every aspect of this DIY Screen Build carefully.
Certain aspects will bear little if indeed no compromises.
1st off, I would suggest the use of Sintra over the TWH because of both installation and coating adherence considerations. TWH will easily accept the desired paint, but to make such paint resist scratching by the wee cretin's activities, a pre-priming of the TWH should be strongly considered...using a special Primer designed to adhere to very smooth surfaces. Sintra does not require such,
Also, the TWH would require mounting to a stiff under-laying substrate, on in the least a perimeter frame constructed of a warp resistant hardwood such a Clear White Poplar. Then there is the mounting to consider.
Sintra can be had in a thickness of 1/2" and at that thickness it is extremely stiff and flat, and will hang as straight as the mounting itself will allow it to....forever. It would never warp or bow. Thinner Sintra (6mm) would work great as well but would need some rear support to hang as flat as possible over the Wall (...does the Wall itself have any pronounced waves or dips, or is it just unevenly textured...?)
As for mounting, the use of anything such as a Chair Rail Trim would raise the material off the wall at least 3/4"...and that of course doesn't take into account the thickness of either given screen assembly...unless by virtue of your drawing your thinking of cupping the raw material with the molding...which I do not suggest doing.
Personally speaking, hanging either material upon the wall in the exact position the projected image presents is the only sane way to get started. The you paint it in place. If I had leeway to do things as I would see fit, and IF the Wall itself is or can be made Flat via smoothing of skimming within the given image parameters, that would be by far the best, least expensive, and most durable solution. A very thin frame could be placed around the perimeter of the image to catch any "very small" amount of light spill created by any "very small" degree of trapezoidal effect caused by either the PJ's own placement or any slight pitch in the wall surface.
All in all, this should be carefully planned out since you opted to go UST. That would not have been my suggestion had I been asked prior to the purchase. I understand a "bargain" but too often the compromises and considerations outweigh the advantages of any savings....and in the case of a UST I really don't see much if any such advantage in the savings department....and a whole lot of considerations as far as application /installation.
At least as far as the paint choice part goes, things do get simple and straightforward....but truthfully, we gotta get you past the screen build to even start considering the application of the coating.
The Holiday weekend is upon us, and after today I will be out of pocket via the Forum,(4 AM Thursday departure) so I will PM an alternative contact if you need advice prior to next Tuesday.
OK...so if we are talking about a UST and the desire for some ability to resist Ambient Light, we need to approach every aspect of this DIY Screen Build carefully.
Certain aspects will bear little if indeed no compromises.
1st off, I would suggest the use of Sintra over the TWH because of both installation and coating adherence considerations. TWH will easily accept the desired paint, but to make such paint resist scratching by the wee cretin's activities, a pre-priming of the TWH should be strongly considered...using a special Primer designed to adhere to very smooth surfaces. Sintra does not require such,
Also, the TWH would require mounting to a stiff under-laying substrate, on in the least a perimeter frame constructed of a warp resistant hardwood such a Clear White Poplar. Then there is the mounting to consider.
Sintra can be had in a thickness of 1/2" and at that thickness it is extremely stiff and flat, and will hang as straight as the mounting itself will allow it to....forever. It would never warp or bow. Thinner Sintra (6mm) would work great as well but would need some rear support to hang as flat as possible over the Wall (...does the Wall itself have any pronounced waves or dips, or is it just unevenly textured...?)
As for mounting, the use of anything such as a Chair Rail Trim would raise the material off the wall at least 3/4"...and that of course doesn't take into account the thickness of either given screen assembly...unless by virtue of your drawing your thinking of cupping the raw material with the molding...which I do not suggest doing.
Personally speaking, hanging either material upon the wall in the exact position the projected image presents is the only sane way to get started. The you paint it in place. If I had leeway to do things as I would see fit, and IF the Wall itself is or can be made Flat via smoothing of skimming within the given image parameters, that would be by far the best, least expensive, and most durable solution. A very thin frame could be placed around the perimeter of the image to catch any "very small" amount of light spill created by any "very small" degree of trapezoidal effect caused by either the PJ's own placement or any slight pitch in the wall surface.
All in all, this should be carefully planned out since you opted to go UST. That would not have been my suggestion had I been asked prior to the purchase. I understand a "bargain" but too often the compromises and considerations outweigh the advantages of any savings....and in the case of a UST I really don't see much if any such advantage in the savings department....and a whole lot of considerations as far as application /installation.
At least as far as the paint choice part goes, things do get simple and straightforward....but truthfully, we gotta get you past the screen build to even start considering the application of the coating.
The Holiday weekend is upon us, and after today I will be out of pocket via the Forum,(4 AM Thursday departure) so I will PM an alternative contact if you need advice prior to next Tuesday.
