acid-free, smooth/smooth, from chlorine-free bleached pulp (TCF), from 625 g/m² is glued
In the versions up to a grammage of 495g/m² Bristol board is a white board that contains no glue, but in the heavier versions up to 625 g/m² it can be a two-ply or even three-ply glued board. The board is acid-free (also not buffered) and made from chlorine free bleached pulp. Its name comes from the southern English city of Bristol where it was first produced. Bristol board in various thicknesses is often used in architectural model making because of its lightfastness and smooth white surface.