Art Spectrum Colourfix Board is a 1200gsm hot pressed watercolour board screen printed with Colourfix Primer. It is recommended for the artist seeking a flat, rigid work surface that still meets conservation standards. They are ideal for all mediums, including oil paint (for sketching) The full range of 20 Colourfix colours is offered in "Plein Air Board", produced in a convenient size for easy framing - the printed area is 30 x 40cm and it will also work well in a 40 x 50cm frame with a mat. Plein Air Boards are lightweight, versatile and affordable. Importantly, they are also of archival quality, unlike many of the panels and papers commonly used for plein air painting. Larger sized boards are available in a limited range of colours (sand, rose grey, elephant, blue haze and soft umber) and are ideal for the serious artists. Sizes available are 500 x 700mm and 700 x 1000mm. These boards are packed in fives, with an assorted pack containing one sheet of each colour also available.