Just finished applying about 40 feet of 1" fiberglass tape to a surf ski's
(long, skinny sit-on-top kayak...) hull/deck seam using West System epoxy resin.

99" of it went as expected, but I've got a few areas (2" max) where the
resin/tape is milky white. In the longest area, it was uniform from one edge
of the tape to the other. In the smaller areas it doesn't extend the full
width of the tape.

I guess I'm going to grind it off once it's cured and try another layer,
but the suspected cause will determine how I go about applying subsequent
layers.

Water weeping from the seam? Contaminated tape?

Something else?
--
PeteCresswell