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pnwdavis replied to the topic Single Sided TPU Issues, Fabric to TPU Failures in the forum DIY Packrafts 3 years, 2 months ago
Hey everyone!
Sorry about the long delay on an update on this. I emailed back an forth with Matt, sent him some fabric samples from the affected areas, and it seemed to be a one off fabric issue. The supplier isn’t used anymore so it should 100% be a non-issue anymore.
I still wholeheartedly recommend the DIY’s to anyone that has decent s…[Read more]
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pnwdavis replied to the topic Single Sided TPU Issues, Fabric to TPU Failures in the forum DIY Packrafts 3 years, 5 months ago
OK, so I pulled attachment points and will redo them in the correct orientation. I cut the old seat up to inspect, and found about 2 dozen points that the TPU and Nylon bond has given up– they feel like little blisters. They are all over the fabric, and a few of them correspond to small leaks that developed through the fabric. They seem to be…[Read more]
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pnwdavis replied to the topic Single Sided TPU Issues, Fabric to TPU Failures in the forum DIY Packrafts 3 years, 5 months ago
Matt, I’m sorry, you’re right on the forces.
Looking at the photos again, I tied the loops backwards from my original plan, which definitely put all the ‘pinching’ force on the tie in points as opposed to the seat back as I originally intended, and that explains the delamination perpendicular to the direction of pull– the tie down is getting…[Read more]
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pnwdavis replied to the topic Single Sided TPU Issues, Fabric to TPU Failures in the forum DIY Packrafts 3 years, 5 months ago
Thanks for the reply, Matt. The the photo of the old seat is along the bottom, back right edge. It peeled back about halfway to the reinforcing strips on its own. The fraying didn’t start happening until the fabric pulled away from the TPU.
As for the attachment points along the side they too peel with little force. The ones shownare just…[Read more]
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pnwdavis started the topic Single Sided TPU Issues, Fabric to TPU Failures in the forum DIY Packrafts 3 years, 5 months ago
Hi Everyone,
I just wanted to check in with the forum here and see if anyone is having any similar issues, and if anyone has found a potential fix. The issue only seems to present itself in areas where the non-TPU side of fabric is exposed, allowing for pretty constant wetting out of the fabric (seat, seam strips, tie downs)
For backstory,…[Read more]
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pnwdavis became a registered member 3 years, 6 months ago
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pnwdavis changed their profile picture 3 years, 6 months ago