Stitchery Tape aka Framing Tape
Watch our tutorial! and NOTE: Stitchery Tape has been rebranded as Framing Tape, but the inside product is the exact same quality.
One of my favorite tools -- this is what makes your finished work lie perfectly flat forever. Super easy to use and archival, so it will never yellow. This transparent double-coated adhesive tape is specifically designed for mounting stretched needlework to art boards, foam core, etc. We also sell 5x7" foam core boards if you need some, or we have a COMBO DEAL!
See instructions in photos, though I usually cover the entire board instead of just the edges. Your call! Adhesive will not bleed through or damage fabrics. Acid free, archival quality. Safe for delicate fabrics. Roll is 1½" wide. Available in two lengths: 60 feet and 180 feet. MORE DETAILS BELOW!