16x24 Conservation White Backing Board

16x24 Conservation White Backer Boards are solid bright white boards ideal for backing and adding some stiffness to unframed mats.

Double Sided White Backing Boards, 25 Pack

Golden State Art,11x14 White Uncut Mat with Whitecore

Acid & Lignin Free Board, CONSERVATION MAT BOARD 2 Ply

Archival Methods Museum Board is made of 100% cotton fiber. Bright White is a neutral tone board, is acid- and lignin-free and incorporates alkaline or neutral sizing. All boards are buffered with calcium carbonate. This ensures protection from the destructive effects of acid migration from the matted work and from a polluted environment that might cause the pH of the mat board to decrease (become more acidic) with age.

Archival Methods 17x22 4-ply Conservation Mat Board, 15 Packs, Pearl White

Four 4x6 Openings in a 12x16 Mat 2 Ovals/2 Rectangles

The boards are buffered with calcium carbonate for added protection and longer life. Pearl white has a warmer tonality than bright white museum board

Archival Methods Conservation Mat Board, 11x14, 4 Ply, Pearl White, Package of 25

Crescent 1/8 inch Thick Perfect Mount Self-Adhesive Board

[Package Includes] Somime backing boards come with 10pcs uncut mat boards and a sufficient quantity can meet your daily use and replacement demands.

Somime 10 Pack 16x20 White Backing Boards, Uncut Mat Board 16x20, Acid Free Backerbords for 11x14 Photos, Pictures, Artwork and Paints

16x24 Gallery Plus Thick Matboard

Improving the quality of material used to make foam core baking board; Different from the traditional polyethylene production process - This poster board increased the hardness of the inner polyethylene layer and covered it with a wear-resistant and durable hard paper surface to ensure that this product can be used in a wider range of applications and has longer performance.

15 Pack Foam Board 16x20x3/16, White Foam Board with Hard Paper Outer, Foam Core Baking Board for Project, Acid Free Sign Board Poster Board for

16x24 Custom Premium Matboard

Golden State Art,11x14 Custom Cut Conservation Archival Mat with Whitecore fits 5x7 Picture

Foam Core Backing Board 3/16 White 24x36-5 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects : Office Products