... acid free matboard -Thickness:2.0mm -Core:cream mat boardWe are professional manufacture of mat board(matboard, carboard, pre-cut matboard ... matboard, mount board, card board, pre-cut mat board)2. white core, black core,cream core mat board3. thickness: 0.8 --3.0mm4. ... : Decorative facing paper, Light cream pulp core and backing paper, Surface core and backing paper buffered with calcium carbonate to ...