BLOCKOUT honeycomb fabricsThe honeycomb on blockout blinds is lined with aluminium foil. This means no light will penetrate the fabric. Blockout fabrics come in many colours including white. As the blockout effect comes from within the honeycomb, it is possible to have white showing to your room.
NOTE: It is important to note that for cordless top down bottom up blinds when installed inside the glazing bead of a window or door, a slither of light will be visible around the blind. The degree of light will depend on the design of your windows.
Cosiflor® fabrics have ratings to indicate the percentage of light that is reflected (R), absorbed (A) or transmitted (T) through the blind. For blockout blinds the T rating will always be 0.