The problem is two-fold. 1. you're not applying the fabric correctly. It should be glued with either "Super Seam" or "Poly Tak". A coat of dope isn't enough to hold it as it shrinks. I know, I know. There is someone out there that has used dope for 110 years and it has held. Well, this one didn't.

Secondly, dope shrinks through its entire life, even non-tautening dope! As it shrinks it is pulling the fabric off, or the dope underneath. The fabric is polyester and the best bond is the polyester to polyester bond with either "Super Seam" or "Poly Tak" it's the same stuff.

End of story.

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