Chipboard pads are made up of recycled paper and they in strengthening envelopes and mailers. They are used during stacking boxes to provide layers for added protection. They are available in different sizes and thickness and it is highly recommended to be used as an envelope stiffener.
Its sturdy fiberboard construction is known for its durability and because of the salient light-weight feature it is preferred by everyone to top layer cartoons to protect all kinds of damage from knives and box cutters.