Montana Marker Paper A4 & A3 The new Montana Marker Paper is coated for optimized use with alcohol and water based markers. The short drying time is ideal for designers and graphic artists alike. To fix ACRYLIC marker works, we recommend ironing works under moderate heat lightly in between two clean sheets of paper. The new Montana Marker Paper is A4 or A3 in size 36 sheets of 120gsm paper per pad.