Transducer Surprise - Kayak Fishing Adventures on Big Water’s Edge

bajadog · 11-16-2008, 01:07 PM

The quicker a cure, the more chance for bubbles due to out gassing.

I would think RTV would not have that issue. I don't ever recall seeing
bubbles in RTV "formagasket" automotive products.

dgax65 · 11-16-2008, 06:18 PM

Goop also forms bubbles when you move it. Try to put it on in one smooth movement and then don't touch it until it cures.

I had one that bubbled like that, but I was still able to get good bottom returns at more than 600' I don't think the bubbles matter that much unless the Goop layer is really thick. I always press the transducer down so there is very little Goop under it. I put a thick layer of Goop up the sides and over the top edge to get a good hold on the transducer.

I'm not convinced that all the bubbles came from the curing. With such a thin layer of Goop, it is possible that some of this happened when they were pried up.

kareem korn · 11-16-2008, 06:32 PM

I had that problem with my xtreme. The layer of foam on the inside reacted with the goop and always causing the same bubbles you have pictured. I had to grind down a 4" X 4" area to the kayak material, than attach my transducer.

technoyak · 11-24-2008, 06:04 AM

I recently installed my transducer and did it with a Gladware plastic container. I did cut the botom of the container, siliconed it to the bottom of the kayak so that it would align with the transducer when lowered (it is mounted on the sail mast, Hobie Adventure). I made a hole on the lid and put together the transducer mount and the lid so the lid is "trapped" along with the transducer. Also made a few drilled (very small draining) holes on the edges of the lid. I put water before launching. When I store my kayak, it drains inside and I sponge it out at home.

11-16-2008, 01:07 PM	#1
bajadog I eats what I kills Join Date: Apr 2008 Location: San Diego Posts: 393	The quicker a cure, the more chance for bubbles due to out gassing. I would think RTV would not have that issue. I don't ever recall seeing bubbles in RTV "formagasket" automotive products. __________________ Please release bill-fish.

11-16-2008, 06:18 PM	#2
dgax65 Guerro Grande Join Date: Jan 2006 Location: Houston, TX Posts: 629	Goop also forms bubbles when you move it. Try to put it on in one smooth movement and then don't touch it until it cures. I had one that bubbled like that, but I was still able to get good bottom returns at more than 600' I don't think the bubbles matter that much unless the Goop layer is really thick. I always press the transducer down so there is very little Goop under it. I put a thick layer of Goop up the sides and over the top edge to get a good hold on the transducer. I'm not convinced that all the bubbles came from the curing. With such a thin layer of Goop, it is possible that some of this happened when they were pried up. __________________ Douglas Gaxiola Team No Fish- Amateur Staff

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11-16-2008, 06:32 PM	#3
kareem korn Senior Member Join Date: May 2006 Location: C-bad Posts: 431	I had that problem with my xtreme. The layer of foam on the inside reacted with the goop and always causing the same bubbles you have pictured. I had to grind down a 4" X 4" area to the kayak material, than attach my transducer.

11-24-2008, 06:04 AM	#4
technoyak Junior Member Join Date: Nov 2008 Posts: 7	I recently installed my transducer and did it with a Gladware plastic container. I did cut the botom of the container, siliconed it to the bottom of the kayak so that it would align with the transducer when lowered (it is mounted on the sail mast, Hobie Adventure). I made a hole on the lid and put together the transducer mount and the lid so the lid is "trapped" along with the transducer. Also made a few drilled (very small draining) holes on the edges of the lid. I put water before launching. When I store my kayak, it drains inside and I sponge it out at home.