Has anyone used a high quality blackout cloth for a d\r? I had some material that I purchased many years ago from Porters. It was great stuff, totally black, even with the brightest sunlight coming directly into a d\r window. Unofrtunately, my supply has run out and I need a replacement. Any reccomendations? Has anyone used this stuff:
I bought a length of normal blackout cloth of the type you would use to line curtains years ago from my local cloth shop. It was very cheap at only a few pounds per metre. It is fairly light and works perfectly. I secure it using Velcro which is expensive but gives a very convenient light-tight seal. Theatrical drapers can supply heavyweight blackout fabric (usually Molton or Serge) which is also fire retardant if this is an issue for you but the price is quite a lot more - probably £15-20 per metre. It is also a lot heavier so more difficult to hang but will drape (trail) better.
A few layers of black plastic from a farm store is inexpensive and works. One way of mounting it is with battens nailed to the wall with tiny nails. For sealing windows, a frame with felt or foam padding around the edges and covered with the plastic should work.
I recently bought a door-height curtain from Bed, Bath and Beyond. It is hung on a curtain rod + rings over my darkroom door. It serves very well to block light coming from between the door and the jamb.
The fabric is black and heavy, and is marketed as being light proof and thermal insulating. It was ready made, and inexpensive.
Mine is energy efficient and DARk... cut a piece of insulating foam from the home store 2 or 3 inch thick stuff, to the size of the window.(works well if you have a deep recess, if not it will not work. Cover the "plug" with black plastic... presto.. keeps not only light out but the noise out and cuts down on heat and a/c,
That's exactly how I covered the window in my basement darkroom.
A 2 inch piece of blue "Insul-Board" wrapped in black Duvetyne. The gaps around the edges were plugged with rolled up scraps of Duvetyne, tucked in with a putty knife.