01-23-2013, 06:42 PM
[cool][#0000FF]Vinyl bladders are subject to greater stretch and stress than thicker walled urethane. That might account for thinning and failure at major stress/wear points. Aquaseal should do the job for repairing and reinforcing...at least for a longer period of time.
Anybody who has used the foam seats for awhile will experience the "sagging syndrome". Slipping a piece of plexiglas or plywood between the foam and the lower side of the pocket will help strengthen it and reduce the sag. Also helps with the back section if you need more support. I use a piece of stiff plexiglas and it makes a world of difference in the rigidity. My back appreciates it.
By the way, I almost always partially deflate my tube for transport. I air it up before launching and then partially deflate to return home. Probably a hundred cycles during the year. Never a seam failure with the urethane bladders over several years' use.
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Anybody who has used the foam seats for awhile will experience the "sagging syndrome". Slipping a piece of plexiglas or plywood between the foam and the lower side of the pocket will help strengthen it and reduce the sag. Also helps with the back section if you need more support. I use a piece of stiff plexiglas and it makes a world of difference in the rigidity. My back appreciates it.
By the way, I almost always partially deflate my tube for transport. I air it up before launching and then partially deflate to return home. Probably a hundred cycles during the year. Never a seam failure with the urethane bladders over several years' use.
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[signature]