Matisse Acrylic Medium MM22 Print PasteMix with Matisse Colours to achieve brilliant transparent prints when screen printing. Slows drying time and extends colour. (Size: 10L, 1L, 4L) Specially formulated for folk art techniques. MM12 Clear Sealer can be used on raw wood if you are not using a Matisse Background Colour (which has a built in sealer) and want to paint a design on the raw wood leaving the natural grain revealed. It can also be used on glass, ceramics, terracotta pots and new