Westsail Owners Alliance - Thread: "Hull Insulation"
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Thread: "Hull Insulation"

12,268 posts on 2,444 threads   •   From Mar 07, 2004 - Jan 08, 2012

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Hull Insulation


Rscheng

Bud,
Do you sell the ethafoam or volara foam insulation or do you know of any vendors which sell the foam in small amounts? I have looked all over and can only purchase it in huge quantities (300' rolls).


Tom Crank

I just purchased Volara from The Foam Factory http://foambymail.com/ . They sell it by the foot or by the roll. The only thing to note is that if you order online you are instructed that you will have an opportunity to select the color when you check out but unfortunately this option never appears. So unless you want black I would order by phone.


Rscheng

Tom,
Thanks for the info. Did you glue it to your hull and if so what glue did you use?
Jeff


Peter Sherman

Has anyone tried Thinsulate? It's hydrophobic and has high R value. I don't know if it's priced for the working class (that would be me) but it is being used in some new custom boats.


Bud Taplin
(Member)

It takes a special contact adhesive to glue Volan or Ethafoam to the hull, as nothing likes to stick to it. I have used 3M #4693 contact adhesive, and it works well.

Bud


Anonymous
(Guest)

I haven't installed it yet but the folks at foam factory have a couple of recommendations which they also sell. I'd clean the hull with acetone first. I will be getting started in the next week or so, I'll let you know how it works


jensenam (Guest)

While I am nor familiar with Volara, I have checked out Ethafoam with the following insight. Sold as an "insulation" product it is surprisingly expensive. Sold, however, as a "packaging" material it is about 1/4 the cost. I found it locally by calling a packaging supplier.


Peter Sherman

But as a packaging material are you able to find it with some sort of face on it?


Jensenam (Guest)

I have never seen Ethafoam with a "face" on it. What do you mean by "face?"


Bud Taplin
(Member)

It is skin on the surface so that you can scratch the surface, and the foam will not tear. Also it can be easily cleaned.

Bud


Tom Crank

I just used 3M Super 77 Spray Adhesive to apply 1/2 in. Volara on the overhead and hull sides in the v berth. So far so good.


Rscheng

I found a supplier of the ethafoam..... (www.silcom.com/~css ) They sell 75' x 48" x 1/4" rolls of the white for around $82. They also sell the volara but it is much more expensive. I found a really good deal on the 3m 4693 adhesive. Two quarts for nothing. Local paint and supply didnt carry it so they ordered me a couple qts and their 3M distributor didnt charge them so they passed the savings along to me.


Tom Crank

Here is another source for EthaFoam http://www.bobsfoam.com/


Frank and Melanie Scalfano

Are there any newer, better options for hull insulation since the last post here (2004?)


Bud Taplin
(Member)

Ethafoam or Volara has always worked well. I don't know of any other material that is reasonably priced and easy to use.


Martin and Catherine Whittemore

Good Old Boat had several insulating articles in the last few issues.


Don Montgomery and Lana Nelson

I found an outlet for the insulation but have not been able to find the 3m adhesive locally. Any help???


Bud Taplin
(Member)

I am surprised that the supplier of the insulation did not carry the 3M 4693 adhesive. Find some store that carries 3M products, and I bet they can get it for you.


Tom Crank

3M lits the product as not for consumer use. This limits availability to more industrial type suppliers. If you can't find it locally their are numerous suppliers on the internet. Be prepared for some sticker shock.


Frank and Melanie Scalfano

Has anyone tried spray-on polyurethane insulation for the hull? There seems to be at least two companies on the net advertising diy two-part foam kits that are appropriate for boat applications.


Bud Taplin
(Member)

Spray-on foam gets awfully messy unless in a very open workshop area. Not really suitable in the confines of a finished boat.

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