The boat is CSM and the rubstrake is PVC. Cross bonding is required.
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Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
The tube looks hypalon so i would Bostik on the tube..... But the rubbing strake looks PVC so use PVC on that ... use PVC on the rubbing strake as a primer then use Bostik on the tube then use Bostik to bond together and use a roller... Also of course the key behind all of this is to prep the surface very well on both .. I would clean all old glue off and try to resand then prim.... and use thinners to degrease..