in reading, issues have come up with poly resin being used for repair in boats. my understanding is that the preferred resin to use is epoxy based opposed to poly. the reason seems that the poly will absorb moisture. i could be wrong though. also it has been said that the poly will delaminate from the factory release mold style resin used in hull mfg.
Are these concerns for the exterior of the boat or are they also a concern in small applications inside? as in i want to secure the battery mount to the inside of the hull and add a few places for speakers. i would not like either piece breaking off and hurting a passenger or flying off the boat.
thanks. with a 1972 regatta and with what i have been reading it seems that most of that period were poly hulls. i think ill just give it a go with thw poly and watch it to see what, if anything happens
Delam will be caused by bad prep or a damamged area over a period of time. Prep it right and you will be good with poly, make sure you do not get your work area to smooth, you want to use 24 to 36 grit paper so the resin has something to bite and hold on to.