Pastel Premier Sanded Paper, Extra Fine 600 grit White. Pastel Premier is a unique 100% cotton archival quality sanded pastel paper that is double-primed with an exclusively made aluminum oxide coating to produce an idea surface for pastel drawing. A final seal coat makes the paper extremely durable and able to withstand any measure of scrubbing and re-working. The base paper is a heavy 145 lb. (300 gsm). This Pochette (packet of unbound sheets) contains 6 sheets in a sturdy re-usable cardboard envelope.