I bought a 26" x 16' box of Bienfang release paper years and years ago from a local camera store for $50.99 which I thought was on the expensive side. Release paper last forever as long as you don't put a crease in it. I'm still on the first sheet. I'm currently using D&K Buffermount dry mount which I get from B&H - ~$120 for a 90' roll.