Bias-cut tapes (weave 45°
to edge) are especially useful for trimming compound curves on components
such as wing tips and tail surfaces. Bias tape will stretch to conform to
the contour without wrinkles, without heat-shrinking edges or cutting and
notching to remove excess fabric. Stretching reduces the width about 35%
so 3" tape should be used to finish areas normally covered with 2"
tape. 2" Bias tape will pull to about 1-3/8" width. Sold in 50 yard rolls.