Image showing a current Pourascreen home cinema installation. The sequence is of the same screen image taken from a progressively closer camera position
What coverage will I get?
For most applications you should use two coats of Pourascreen to achieve a smooth and even colour.
In some cases a single coat may suffice, or you may find that the second coat will not require as much paint as the first coat.
It very much depends on the absorbency of the surface and its original colour. The following table is a guide to the coverage which can be achieved with Pourascreen.
What is the gain factor of Pourascreen and what does it mean?
Pourascreen has a gain factor of 0.85. The gain factor varies only by 0.03 when viewed at a 60 degree angle.
Gain is a measurement of the reflectivity of the surface which you project onto, compared to a standard white screen. A standard white screen has a gain factor of 1.
High gain screens (gain factor >1) reflect more light than a standard white screen but suffer the drawback of "hot-spotting", essentially a glare from the projected light, particularly around the centre of the image. High gain screens have a narrower effective viewing angle since a greater percentage of the light is directed back to the centre of the room. High gain screens can also suffer from changes in colour of the projected image when viewed from different viewing angles.
With low gain screens (gain factor <1) the light is more evenly distributed across the viewing area, thus increasing the effective viewing angle. This also eliminates hot-spotting. In addition, a low gain screen produces better black levels as projectors cannot "project" black - black is simply the absence of light coming from the projector to that portion of the screen.
Modern projectors, including 3D projectors, tend to have higher power output as technology has advanced and so more people are opting for a lower gain screen, such as Pourascreen, in order to achieve the benefits mentioned above.
However, if your projector is particularly low output (less than 1,000 lumens) and you cannot control the ambient light levels in the room, then you may benefit from screen with a higher gain instead.
What if my wall isn't smooth?
If your existing wall surface is not sufficiently smooth, then you could paint Pourascreen onto a sheet of MDF and mount it into the wall. We would recommend using a grey MDF primer on the sheet and prime both sides of the MDF to prevent warping.
Can I apply a border?
If you require a border, then you can use a matt black paint (available from any hardware shop) or black velvet strip (available easily on-line) to create a border. However, different sources can produce different screen sizes/aspect ratios through the projector, so a removable/adjustable border may also be worth considering. It's a question of personal preference whether or not you wish to apply a border.
For a more "stealthy" installation, you could paint a panel of wall (or indeed the entire wall) from floor to ceiling. This may be particularly suitable where your home cinema room is a multi-purpose room and you want the screen to blend in when not in use.
For a typical domestic room, 750ml of Pourascreen should cover an entire wall, or section of wall, up to 3.5m wide. As it is a neutral colour, it will blend easily into most modern room deco's when not in use as a home cinema screen.
Why is Pourascreen relatively inexpensive compared to other screen paints?
To get a high-performance projector screen paint, you shouldn't need to spend £100's. Some of the commercial solutions out there involve painting multiple layers with different base-coats and top-coats and choosing from a plethora of shades and mixes. That may help to justify charging high prices - but more complexity doesn't necessarily mean better results.
The key to getting a great performance from your screen is to get a paint with the right colour and light-reflectivity characteristics when an image is shone on it. A paint that gets these characteristics correct is, for sure, different from an ordinary paint. But there's no reason why it should be that much more expensive. We believe in charging a fair price for your projector screen paint. We only sell direct and don't use any intermediaries. We don't sell "kits" as you can more easily and cheaply buy trays, rollers, brushes, paint-pads etc from your nearest home improvement shop.
The second picture is recoloured to show more clearly the individual reflective elements.
These elements are designed to reflect without interfering with the light thus ensuring a bright, sharp and vibrant picture.