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Old 14 May 2012, 16:16   #1
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Fixing rubber reinforcement to hypalon

We have an old Humber rib. The rubber reinforcement over an exposed seam came loose and the hypalon seam below failed. The seam was repaired successfully and the rubber glued on top. After a few weeks the rubber has come away again but the seam below is holding well. What is best for fixing the rubber in place permanently? Thanks for any help!
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Old 14 May 2012, 16:47   #2
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Sure it is rubber? Often made from PVC, if so, then you will need to 'prime' the strake with PVC adhesive first, and then affix with the 2-part Hyp adhesive.
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Old 14 May 2012, 17:00   #3
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Thanks for the suggestion. Sorry to be so ignorant....
I think it is rubber. The boat is at least 15 years old, an ex Fishery Patrol one. A black residue comes off my "rubber".
Last time I sanded the surface off the hypalon and cleaned it with solvent. I did the same on the strake before using the 2 part adhesive. I thought I had done an ok job but it didn't last. It is below the waterline.
Thanks again for the advice.
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Old 15 May 2012, 04:56   #4
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Every Humber I have worked on has had a rubber strake even the early ones. If the water is catching it as you are going along try and put a mastic bead along the join to direct the water over rather than under.
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Old 15 May 2012, 06:43   #5
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Thanks for the confirmation that the rubbing strake will be rubber. I think I am now on the right track for a more permanent solution.
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