Acid Free on the surface, but the core is not acid free. White both side. Sorry, no exceptions.
MBC MAT BOARD CENTER, Pack of 10-18x24 Pre-Cut 12x18 - White Mats - for Pictures, Photos, Framing - Kit Includes: 10 White Backboards and 10 Clear Bags - Acid Free, 4-ply Thickness, White Core
AUEAR, White 5x7 Uncut Mat Matte Boards for Picture Framing, Print, Artwork - Backing Boards 1/16 Thick, 15 Pack
12x18 Mat for 18x24 Frame - Precut Mat Board Acid-Free Aqua Blue 12x18 Photo Matte For a 18x24 Picture Frame, Premium Matboard for Family Photos, Show Kits, Art, Picture Framing, Pack of
12x18 Frame for 12x18 Picture Black Wood (8 Pcs per Box)
50 Pack 12x18 Backing Board Only, Backings for Art, Photo, Print, Frame, White
Golden State Art 50 11x14 Backing Board : Electronics
12x18 Mat for 18x24 Frame - Precut Mat Board Acid-Free Royal Blue 12x18 Photo Matte For a 18x24 Picture Frame, Premium Matboard for Family Photos, Show Kits, Art, Picture Framing, Pack of
This item comes with 50 8x10 inches backing boards. The cardboard is white on both sides, brown core, 1/16 inch thick. The backing board for crafts is
Golden State Art, 8x10 Picture Mat Matte Backerboards for Framing. Pack Contains 50 Backing Boards (White, 50 Pack)
Backing Boards
18x24 Mat for 22x28 Frame - Precut Mat Board Acid-Free White 18x24 Photo Matte Made to Fit a 22x28 Picture Frame, Premium Matboard for Family Photos, Show Kits, Art, Picture Framing
12x18 Mat for 18x24 Frame - Precut Mat Board Acid-Free Aqua Blue 12x18 Photo Matte For a 18x24 Picture Frame, Premium Matboard for Family Photos, Show Kits, Art, Picture Framing, Pack of
This item comes with 50 8x10 inches backing boards. The cardboard is white on both sides, brown core, 1/16 inch thick. The backing board for crafts is
Golden State Art, 8x10 Picture Mat Matte Backerboards for Framing. Pack Contains 50 Backing Boards (White, 50 Pack)
Golden State Art, Pack of 10, 12x12 Picture Mat Matte Backerboards for Framing. Pack Contains 10 Backing Boards
Golden State Art, Pack of 25 16x20 Backing Boards JJ403353
Golden State Art, 12x18 White Backing Board, Backer Boards for Frame, Picture (10 Pack)