- This tape can be used to repair tears in pages, and will not discolour or dry out. *Unlike plastic repair tapes, Filmoplast® P90 is an ultra-thin white paper that has the same appearance as your sheet of paper. *The paper and the adhesive are provided with a calcium carbonate that provides protection against acids found in more modern papers. *At a very low cost per centimeter, even the most cost-conscious libraries and archives can use this product. *50 g/m² special paper with an ideal combination of stability and strength with a soft appearance, white. *Coated with ageing-resistant, non-yellowing, durable elastic acrylic adhesive, buffered with CaCO3, slightly alkaline so that damage to the documents is not possible, but with sufficient buffer capacity to prevent acidification. *Aging resistance certified by the Paper Technical Foundation (PTS - paper ..