Mike Whitten was kind enough to send me his article on how to install a shoot thru and in it he suggests: “Do not use a quick set epoxy. They can set up with numerous air bubbles between the transducer face and the hull. This kills signal transmission. Devcon Plastic Welder is my choice, but most slow cure epoxy compounds will also work. I have not used it personally, but Ive talked to several anglers who have used Marine-Tex epoxy with good results.” – Jason
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