Challenge Seamstick — Double-Sided Sail Seam Tape
The longtime favorite of sail lofts worldwide. Challenge Seamstick is a double-sided transparent tape with a white paper carrier — the standard for bonding kite sail seams, laminate panels, and fabric joins before stitching or as a standalone bond. Works cleanly on nylon, polyester, Mylar, and most kite fabrics. A more affordable alternative to VHB for seams that don’t require structural-grade adhesion. 1/4" wide, sold by the roll.
Specifications:
- Width: 1/4" (6.35mm)
- Construction: Double-sided transparent tape with white paper carrier
- Sold by the roll
- Vendor: Challenge Sailcloth
Why Challenge Seamstick?
- Trusted by professional sail lofts for decades — proven on performance sails and kites
- Transparent tape with paper carrier for clean, precise seam placement
- Works on nylon, polyester, Mylar laminate, Icarex, and most kite fabrics
- Holds panels in position for stitching or as a standalone bond for lighter applications
- More affordable than VHB — ideal for general seam work and prototyping
- Easy to handle and reposition before final press
Common uses: Kite sail seam bonding, panel positioning before stitching, Mylar and ripstop joins, kite repair, general fabric bonding in maker builds.
Manufactured by Challenge Sailcloth, USA.