Is Epoxy better than Goop for transducer mount? - Kayak Fishing Adventures on Big Water’s Edge

Donfish · 03-01-2008, 08:40 AM

I always have to be differant.....3M 5200 fast set think flexibilty is as important as adhesion when it comes to fastening to a flexible surface.

Billy V · 03-02-2008, 11:57 AM

Heres a couple of pics of the transducer Gooped down. I located it between the sailing mast, and the drive well (Hobie Adventure). I figure this area would be fairly stiff. I roughened up the surface with 80 grit aluminum oxide paper, then cleaned it with alcohol.

I was careful to flow the Goop so as not to create any bubbles. Then I placed the puck down in one motion from left to right. I leveled the boat with a pool noodle wedge, and it has stayed put for 3 hours so far.

*Note the "drive well strengthening kit" to the rear of the puck. Its a Hobie thing.

I'll know more next week.

nmbrinkman · 03-02-2008, 12:53 PM

Is that "marine goop" or regular "goop"?

Billy V · 03-02-2008, 03:46 PM

Quote:

Originally Posted by nmbrinkman

Is that "marine goop" or regular "goop"?

Marine Goop.

aguachico · 03-02-2008, 04:28 PM

Marine goop has UV inhibitors.

DOn't use GOOP.

3M 4200 is the the way to go other than mounting outside the yak.

After using goop, 4200, water bags and everyother method I can think of, the transducer should be mounted outside a yak for optimal clarity.

bluesquids · 03-03-2008, 11:06 AM

[quote=aguachico;21494]Marine goop has UV inhibitors.

quote]
Is UV inhibitor a bad thing?
I thought 5200 was standard for thru hull applications.
It seems very flexible. Have not tried 4200 yet because it says
it's less adherent than 5200.
Heard that the kaya tank installs are using Goop now.
I think prep is most important anyway you decide to go.

dgax65 · 03-03-2008, 12:46 PM

[quote=bluesquids;21527]

Quote:

Originally Posted by aguachico

Marine goop has UV inhibitors.

quote]
Is UV inhibitor a bad thing?
I thought 5200 was standard for thru hull applications.
It seems very flexible. Have not tried 4200 yet because it says
it's less adherent than 5200.
Heard that the kaya tank installs are using Goop now.
I think prep is most important anyway you decide to go.

I'll agree with that. I've used 3M 5200 (regular and quick cure), Marine Goop and Sikaflex. While I have had mixed results with the sonar performance, all have adhered well to the hull. The key is to rough up the hull first. I really had to struggle to get a couple of the transducers off.

Marine Goop works well but you have to take precautions to prevent bubbles from forming under the transducer. Have everything ready to go before you apply the Goop. Level the hull so the transducer won't move. The key is to put the transducer down in one smooth motion. You don't want to disturb it once it is in place. Every movement seems to create more bubbles.

I've found that a thin layer works best. I just put down enough Goop to seat the entire transducer surface. After it cures for a while I go back and put a little more Goop down. When I apply the second layer I put Goop on the top edge of the transducer and let it run down the sides to contact the first layer. I think this holds the transducer in place better. Some people rough the surface of the transducer for better adhesion. I would rather cover the top than rough the transducer face.

aguachico · 03-03-2008, 01:39 PM

[quote=bluesquids;21527]

Quote:

Originally Posted by aguachico

Marine goop has UV inhibitors.

quote]
Is UV inhibitor a bad thing?
I thought 5200 was standard for thru hull applications.
It seems very flexible. Have not tried 4200 yet because it says
it's less adherent than 5200.
Heard that the kaya tank installs are using Goop now.
I think prep is most important anyway you decide to go.

UV not sure if good or bad - can't hurt I guess.
5200 is the standard for thru hull, this isn't thru hull.

4200 is a personal preference for tranducers. I still use goop around rod holders and my old kayaktank.

Siebler · 03-03-2008, 08:51 PM

[quote=bluesquids;21527]

Quote:

Originally Posted by aguachico

Marine goop has UV inhibitors.

quote]

Heard that the kaya tank installs are using Goop now.

If you have your tank installed it will be done with Goop. This is the same at any OEX or AYS as I do all the installs. If you order a tank and install yourself it will come with 5200 unless you specifically tell me you want the goop.

dos ballenas · 03-02-2008, 03:00 PM

Quote:

Originally Posted by Donfish

I always have to be differant.....3M 5200 fast set think flexibilty is as important as adhesion when it comes to fastening to a flexible surface.

you want 3m 4200 FC ... 5200 is like cement, it has no flex, 4200 is for joints, and places that will flex

owyn

03-01-2008, 08:40 AM	#1
Donfish Member Join Date: Feb 2008 Location: Redondo beach Posts: 31	I always have to be differant.....3M 5200 fast set think flexibilty is as important as adhesion when it comes to fastening to a flexible surface. Last edited by Donfish; 03-01-2008 at 11:53 AM.

03-03-2008, 11:06 AM	#6
bluesquids Senior Member Join Date: Mar 2005 Location: Jamul, CA Posts: 243	[quote=aguachico;21494]Marine goop has UV inhibitors. quote] Is UV inhibitor a bad thing? I thought 5200 was standard for thru hull applications. It seems very flexible. Have not tried 4200 yet because it says it's less adherent than 5200. Heard that the kaya tank installs are using Goop now. I think prep is most important anyway you decide to go. __________________ Thanks, bluesquids

03-02-2008, 11:57 AM	#2
Billy V Senior Member Join Date: Sep 2006 Location: Bay Ho Posts: 1,382	Heres a couple of pics of the transducer Gooped down. I located it between the sailing mast, and the drive well (Hobie Adventure). I figure this area would be fairly stiff. I roughened up the surface with 80 grit aluminum oxide paper, then cleaned it with alcohol. I was careful to flow the Goop so as not to create any bubbles. Then I placed the puck down in one motion from left to right. I leveled the boat with a pool noodle wedge, and it has stayed put for 3 hours so far. *Note the "drive well strengthening kit" to the rear of the puck. Its a Hobie thing. I'll know more next week.

03-02-2008, 12:53 PM	#3
nmbrinkman Work Sucks! Join Date: Mar 2006 Location: San Diego Posts: 559	Is that "marine goop" or regular "goop"?

03-02-2008, 04:28 PM	#5
aguachico Senior Member Join Date: Mar 2005 Posts: 719	Marine goop has UV inhibitors. DOn't use GOOP. 3M 4200 is the the way to go other than mounting outside the yak. After using goop, 4200, water bags and everyother method I can think of, the transducer should be mounted outside a yak for optimal clarity.