I spoke with a rep from Bear Creek Canvas, they call it the Omega strip. He was full of information regarding why there is so much condensation in some of the hybrids. You could order it for $3 a foot or send them your canvas and they will attach for...
I have the same problem, have to replace the bed due to water damage then I will worry about the plastic seem. I was told it was factory sewed on to the canvas. Work in progress. Thought about finding a supplement and just go over the old.
