garmin 90

[keith m]

hi all
can anyone tell me if you can mount the transducer of a garmin 90 in the hull or dose it have to be fitted to the transom
thanks

[MikeCC]

As with most transom-mount transducers, you can bond it in the hull as well. Plenty of tips on here how to do that but use silicone or preferably epoxy, making sure there's no air bubbles at all.

[keith m]

any tips on how 2 get rid of the air bubbles

[Sonar]

Originally Posted by keith m

any tips on how 2 get rid of the air bubbles

mix the epoxy resin very slowly.

spread a thin layer on the hull first than apply a sticky lump to the bottom of the transducer.
place the transducer to a level position if you follow any other lines like the curve of the vessel the transducer will send a signal at an angle .

strait down is the way it needs to face.

pack around the transducer and epoxy resin with plaster scene this will keep the unit level and stop the resin from running away from the unit being fitted.

The reference to bubbles may also mean any small bubble like defects in the grp itself.

[Chris]

My advice would be to use a fairly thin epoxy as you will find it impossible to get the bubbles out of thick stuff and dont try to do this when its is cold as the eopxy goes stiff in the cold.

[keith m]

would silicone be ok to use atleast if i mess it up i can get the thing out and clean again

[Sonar]

Originally Posted by keith m

would silicone be ok to use atleast if i mess it up i can get the thing out and clean again

may well move about a bit
.
But maybe sikaflex would be ok
or something called sticks like s*it from a builders merchants better than silicone and it forms a hard rubber. also it will stick to a damp surface.