Corri Cor Mark 3 A1 2.8mm Double Corrugated Backing Board

Corri-Cor Mark 3 is made with more rigid double corrugated board and has the added benefit of a water-resistant coating on the back to protect the artwork from moisture. Brown both sides with a waxed back. Corrugated board with brown kraft paper liner on both sides and a unique structure that makes it both lightweight and dependably rigid. Gently bowed to keep the artwork flat and buffered with calcium carbonate for a neutral pH value. Britannia Mounts are the exclusive manufacturers of Corri-Cor. The Corri-Cor branded board is the original and largest range of bowed backing boards. Corrugated boards with liners on both sides and a unique structure that makes them both lightweight and dependably rigid. Gently bowed to keep the artwork flat and buffered with calcium carbonate for a neutral pH Value.