3M™ Photographic Tape 235 is an opaque black paper tape used in general purpose photography applications. It has a black paper backing with black pigmented rubber adhesive and can be used to mask negatives, repair camera bellows or seal envelopes and metal film containers. - Low reflectivity. Low gloss backing, conformable, firm adhesive. Crepe backing which is conformable for photo can sealing. Firm adhesive for clean removal except from kraft paper.