Has anyone tried applying sound dampening material inside the engine cowling to reduce noise? I've also seen some commercial boats with an outboard motor shroud built onto the transom that provides a barrier between the engine and cockpit. Mounting a large cooler on transom like was mentioned previously likely does something similar albeit less effectively.
Acoustics
- Thread starter Surveyor1
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zuunami":1rstkpzn said:C-Wolfe":1rstkpzn said:
C-Wolfe - you tried anything like this yet? I've been doing a bit of research, would like to try something like this too, and if it works for condensation, I have a dripping metal carport that could use some too
Not yet.
I wanted to order the microsphere powder to add to my paint of choice but the shipping to Alaska was about as expensive as the product itself, so I decided to wait and have it ship to me next time I'm in the lower 48. Or have someone bring it to me. Anyone here is coming to visit Alaska next summer?
zuunami":1wxrfg21 said:C-Wolfe":1wxrfg21 said:
C-Wolfe - you tried anything like this yet? I've been doing a bit of research, would like to try something like this too, and if it works for condensation, I have a dripping metal carport that could use some too
I have a box of Insuladd "powder". It is microspheres to be added to paint. I was going to use it on my boat, but went in another direction. You can have it for the shipping cost. According to USPS shipping is around $30 to Anchorage. PM me.
Seems like there is enough for about 5 gallons of paint (according to the instructions).
Even here the cost of shipping from Amazon costs almost as much as the product, and the product doesn't weigh very much. I can't really find any definitive information on the benefits of ceramic vs glass balloons, or I would try glass. Today I asked a question on Amazon about the Hy-Tech product and it's use for condensation under a metal carport, and a rep responded within about 30 minutes, so that was impressive nowadays Anyway, still thinking about it, I just hate paying so much in postage, but I should just do it and do some experiments
Anyway, still thinking about it, I just hate paying so much in postage, but I should just do it and do some experiments T.R. Bauer
New member
Lots of ideas here, but I don't think there is really a solution that will make a big difference.
Surprised no one brought up the old Mascoat thread BC started way back when.
I put 5 gallons on the interior of Shearwater prior to the first Alaska trip. 3 coats, top, sides and under the V-berth. 2 coats full length the hull sides to 12" below the gunnel. 3 coats of latex.
Made a difference, takes the sharp edge off the noise and changed the acoustics enough that running at speed with the door shut is not bad at all.
Some insulating value also, it's not huge but it is noticeable from a condensation perspective.
Might be tough to do with the newer boats that have the interior liners. Had to remove 80% my interior to get uninterrupted coating the full length of the cabin on the uncored surfaces (roof is cored on shearwater).
stevej
I put 5 gallons on the interior of Shearwater prior to the first Alaska trip. 3 coats, top, sides and under the V-berth. 2 coats full length the hull sides to 12" below the gunnel. 3 coats of latex.
Made a difference, takes the sharp edge off the noise and changed the acoustics enough that running at speed with the door shut is not bad at all.
Some insulating value also, it's not huge but it is noticeable from a condensation perspective.
Might be tough to do with the newer boats that have the interior liners. Had to remove 80% my interior to get uninterrupted coating the full length of the cabin on the uncored surfaces (roof is cored on shearwater).
stevej