A3 Watercolour Paper Gummed Pad - 300gsm, 12 sheets - by Zieler | 09290024 , The A3 watercolour gummed pad by Zieler contains 12 sheets of lightly textured paper perfect for use with watercolour and gouache. Cold pressed so lightly textured to provide the ideal surface for watercolour and gouache painting. Free of optical brightening agents and buffered with calcium carbonate to prevent colour-loss. 300gsm thick paper ensures that it absorbs water and withstands erasures and masking fluids. Ideal for abstract and freestyle painting. Soft white colour paper Suitable for all types of gouache and watercolour work - including pans, pencils and paints. Each sheet is gum-bound at the top of the pad to ensure that each page is secure, yet easy to remove cleanly if desired. A3 size - 297 x 420mm Acid free , Dimensions (mm) = 420 x 300 x 10