Quote Originally Posted by newblade
At what speeds will it read? What type of epoxy?
The slow hardening epoxies are best because it allows time for the air bubbles to bleed out. Try it out by putting enough water in your bilge to cover the area that you want to the transducer on. Set the transducer down, and it should work. Move it around if it doesn't in case there is a void or piece of wood in the hull in that area. If you want to test it at speed, you'll want a couple of bread sacks full of sand to hold it in place. I fished for 4 days with mine held in place like this when the epoxy came lose on a trip.

To glue it down, wire brush the area of the hull where you'll be mounting it, then clean it with paint thinner or something similar. Let it dry. Sand the bottom of the transducer with coarse sandpaper to help it stick, and then clean it with thinner as well. Use a bunch of epoxy (whole tube is fine) and twist and wiggle the transducer into position. You might have to put something in there to hold it until it dries.

For sure the way to go, especially with your hull.