Bauhaus True Rag Etching 310 is an archival, lightly textured, 100% cotton, etching paper with no optical brighteners. With the luxurious texture of a traditional etching paper and the natural white surface, you havethe perfect combination for fine art reproductions and photographs in a ll hues. The weight is ideal for handling and framing and the surface has a high, water resistance that can reproduce a huge colour gamut. Meetscriteria for permanence according to ISO 9706.