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post #1 of 3 Old 09-03-2016 Thread Starter
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Airmar transducer.

I have an Airmar in hull transducer. What is the best way to secure it (adhesive) to the hull? What type of oil is used inside? Calibration? Also lastly I need a big, easy to read from a distance display. Hard wired is preferred however some wifi options (imux?) I can look at.
Thanks in advance.

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post #2 of 3 Old 09-03-2016
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Re: Airmar transducer.

are we talking P79 depth transducer. best way is to test position first by placing in plastic bag filled with water and put against the hull. or install the mount to the hull with toilet seal wax and fill with water (Mine is still that way a year later and will mount it permanently some day soon ). once you have determined the location works then silicone in place and fill with anti freeze as per the instructions. some will say that if you use silicone your boat will sink but that is what Airmar recommends and it does work fine.

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post #3 of 3 Old 09-01-2019
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Re: Airmar transducer.

We have a P79 transducer on our boat. Worked fine for awhile then the readings became erratic. Upon investigation I discovered the anti-freeze had leaked out. The silicone offered very little resistance when I pulled the transducer up. Now I'm wondering why the bond failed. Pretty sure I cleaned the mounting area with acetone. The fiberglass is smooth in the mounting area as is the mounting surface of the ring. I'm thinking to use 60 grit paper to rough up both surfaces before mounting with silicone. Instructions say to use GE silicone I or II. Does anyone have a better suggestion on how to get a permanent mount?

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