Often times hotel brands require window treatments to have blackout capabilities, which creates privacy and a more comfortable experience for guests.
Manufacturing a blackout involves coating a fabric with layers, or ‘passes’, of aerocellular acrylic foam. A 2-pass blackout is produced by applying two layers of foam to the fabric, while a 3-pass blackout will receive 3 layers of foam.
Pinholes are needle size spots where a transfer of light occurs. They are not large holes or scratches and they do not increase in size without physical or mechanical damage. Typically pinholes cannot be seen unless a bright light is shone through the curtain.
Pinholes are inherent to coated fabrics and can occur at random. Having multiple pinholes throughout seam lines or linearly across the treatment should not be considered standard.
Do I have a pinhole problem? As a guideline, having three or less visible holes, from a viewing distance of 5-8 feet, is considered acceptable.
In certain cases, a pinhole can be fixed by patching the area with a small amount of acrylic foam. Large areas of light or an abundance of holes are typically deemed replacement candidates over repairing.