Re: M_Boats: m-15 floatation
As I recall from the last time this came up, expanding foam is not closed cell. Meaning it will absorb moisture, which would allow all sorts of undesirable things to grow inside. Also, it is a real mess when you want to remove it. You need closed cell foam. Larry On Thu, 22 Oct 2009 08:32:23 -0500 Howard Audsley <haudsley@tranquility.net> writes:
Forgetting flotation for a minute, how does the two part expanding foam work as insulation vs. say.....white or blue styrofoam?
On Oct 22, 2009, at 8:24 AM, <htmills@zoominternet.net> wrote:
Sean is right. Even if there is a substantial opening for the foam to expand out of, it can do scary things.
(I, too, speak from personal experience)
Tod Mills M17 #408, 1987 galley model BuscaBrisas
-----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Nebwest2@aol.com Sent: Thursday, October 22, 2009 1:19 AM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: m-15 floatation
"two part closed cell foam "
If you are talking about 2 part pour foam...the type where you mix part "a" with part "b" and it instantly starts growing and forming foam....be careful. If you mix this stuff in a closed container where it cannot expand as it needs to...or if it forms solid foam and blocks off its own exit while it is still expanding .....it can do some scary things! Just know that it IS going to expand....even if it needs to push you hull liner or cockpit walls out of the way to do it...IT IS going to expand! Make sure to carefully calculate how much you mix so you don't turn your Monty 15 into a
Monty 19!
Please do not ask that I relate how I became familiar with the expansion properties of 2 part pour foam!!
:-) let's just say that I have had "confirmation" of some part of the above statement!
Sean M23 "Dauntless" _www.havasumontgomerys.piczo.com_ (http://www.havasumontgomerys.piczo.com) _______________________________________________
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Clark Craft ( among others) sells a two part urethane foam that is supposed to be closed cell to fill areas of boats (usually boat kits that you bought from them). Everybody says to do it in small batches so it doesn't get out of control, but I'm trying to get an idea of how much would be necessary. Not a lot of room in the forward compartment (which was screwed shut anyway on my boat) and lots of space in the stern. ________________________________ From: Larry E Yake <leyake@juno.com> To: montgomery_boats@mailman.xmission.com Sent: Thu, October 22, 2009 9:54:27 AM Subject: Re: M_Boats: m-15 floatation As I recall from the last time this came up, expanding foam is not closed cell. Meaning it will absorb moisture, which would allow all sorts of undesirable things to grow inside. Also, it is a real mess when you want to remove it. You need closed cell foam. Larry On Thu, 22 Oct 2009 08:32:23 -0500 Howard Audsley <haudsley@tranquility.net> writes:
Forgetting flotation for a minute, how does the two part expanding foam work as insulation vs. say......white or blue styrofoam?
On Oct 22, 2009, at 8:24 AM, <htmills@zoominternet.net> wrote:
Sean is right. Even if there is a substantial opening for the foam to expand out of, it can do scary things.
(I, too, speak from personal experience)
Tod Mills M17 #408, 1987 galley model BuscaBrisas
-----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Nebwest2@aol.com Sent: Thursday, October 22, 2009 1:19 AM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: m-15 floatation
"two part closed cell foam "
If you are talking about 2 part pour foam...the type where you mix part "a" with part "b" and it instantly starts growing and forming foam....be careful. If you mix this stuff in a closed container where it cannot expand as it needs to...or if it forms solid foam and blocks off its own exit while it is still expanding ......it can do some scary things! Just know that it IS going to expand....even if it needs to push you hull liner or cockpit walls out of the way to do it...IT IS going to expand! Make sure to carefully calculate how much you mix so you don't turn your Monty 15 into a
Monty 19!
Please do not ask that I relate how I became familiar with the expansion properties of 2 part pour foam!!
:-) let's just say that I have had "confirmation" of some part of the above statement!
Sean M23 "Dauntless" _www.havasumontgomerys.piczo.com_ (http://www.havasumontgomerys.piczo.com) _______________________________________________
http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.24/2449 - Release
Date:
10/20/09 18:42:00
_______________________________________________
http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
What about the aerosol foam in a can? It is easy to use. ⎈--Gary ☺ On Oct 22, 2009, at 1:50 PM, mrh219@yahoo.com wrote:
Clark Craft ( among others) sells a two part urethane foam that is supposed to be closed cell to fill areas of boats (usually boat kits that you bought from them). Everybody says to do it in small batches so it doesn't get out of control, but I'm trying to get an idea of how much would be necessary. Not a lot of room in the forward compartment (which was screwed shut anyway on my boat) and lots of space in the stern.
________________________________ From: Larry E Yake <leyake@juno.com> To: montgomery_boats@mailman.xmission.com Sent: Thu, October 22, 2009 9:54:27 AM Subject: Re: M_Boats: m-15 floatation
As I recall from the last time this came up, expanding foam is not closed cell. Meaning it will absorb moisture, which would allow all sorts of undesirable things to grow inside. Also, it is a real mess when you want to remove it. You need closed cell foam. Larry
On Thu, 22 Oct 2009 08:32:23 -0500 Howard Audsley <haudsley@tranquility.net> writes:
Forgetting flotation for a minute, how does the two part expanding foam work as insulation vs. say......white or blue styrofoam?
On Oct 22, 2009, at 8:24 AM, <htmills@zoominternet.net> wrote:
Sean is right. Even if there is a substantial opening for the foam to expand out of, it can do scary things.
(I, too, speak from personal experience)
Tod Mills M17 #408, 1987 galley model BuscaBrisas
-----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Nebwest2@aol.com Sent: Thursday, October 22, 2009 1:19 AM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: m-15 floatation
"two part closed cell foam "
If you are talking about 2 part pour foam...the type where you mix part "a" with part "b" and it instantly starts growing and forming foam....be careful. If you mix this stuff in a closed container where it cannot expand as it needs to...or if it forms solid foam and blocks off its own exit while it is still expanding ......it can do some scary things! Just know that it IS going to expand....even if it needs to push you hull liner or cockpit walls out of the way to do it...IT IS going to expand! Make sure to carefully calculate how much you mix so you don't turn your Monty 15 into a
Monty 19!
Please do not ask that I relate how I became familiar with the expansion properties of 2 part pour foam!!
:-) let's just say that I have had "confirmation" of some part of the above statement!
Sean M23 "Dauntless" _www.havasumontgomerys.piczo.com_ (http://www.havasumontgomerys.piczo.com) _______________________________________________
http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.24/2449 - Release
Date:
10/20/09 18:42:00
_______________________________________________
http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
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participants (3)
-
Gary M Hyde -
Larry E Yake -
mrh219＠yahoo.com