Subject: Re: [harryproa] Re: extruded polystyrene core questions
From: "=?UTF-8?B?QmrDtnJu?= bjornmail@gmail.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 5/21/2018, 8:22 AM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

In case you haven't seen it, in the following link you can see how the 700kPa (100PSI) XPS compares to other XPS and Divinycell H60 in compression.

http://www.trinardo.com/y..a.t-yetanothertrinadofoamcompare3

The site also shows pictures from the start of the build of a ~21 ft trimaran main-hull with 10mm 700kPa XPS as core material. The site hasn't been updated in soon 10 years, and the guy didn't respond to an email I sent a couple of years ago, so I guess he stopped building. Boat has nice shapes, and looks like the build method is similar to how the homebuilt Corsair trimarans are built.

I will actually make another attempt at contacting him, since we are both in Sweden.

On Sat, May 12, 2018 at 2:06 AM, '.' eruttan@yahoo.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
 



>Do you feel these comments are adding something useful to a complex conversation thread exploring the in's and out's of different core materials?

Do you feel this is 'a complex conversation'?

IMHO, this has become a discussion of feelings and guesses. Something it was not recently. I see no hard data or information being discussed currently. If I am wrong, I am open to having the hard data or complexity pointed out to me.

>The attitude isn't needed for those who agree with you. And for those who don't yet agree with you, it's not going to help sway opinions.

I am not sure anyone should value those who agree with them solely because they agree with them! Do you?

This is not a popularity or consensus building event in my eyes. There is physical reality here, and it can be engaged directly. I do not see how the properties of any material we have discussed is influenced by popular opinion and winning friends, or the converse. Do you?

>What's particularly confusing is that StoneTool has been supportive of XPS, at least for certain uses. Why get testy with an ally?

I am very confused that you view my points as me getting testy with him. If it was unclear, i was mocking him. Again, I do not understand how a discussion of the physical properties of boat building materials intersects with the political. But, again, I am open to having it pointed out.

This thread has documented and discussed the grades and costs of various materials, the requirements to engineer a panel, and the properties needed in that core material. Also, we have discussed what properties are less relevant to panel construction.

Do you feel the 'bendiness' of a random piece of foam adds to that? Or can you point some sort of value added to this factual discussion in the recent discussion?

I mean, we love everyone. And every input is valued. Right?


__._,_.___

Posted by: =?UTF-8?B?QmrDtnJu?= <bjornmail@gmail.com>
Reply via web post Reply to sender Reply to group Start a new topic Messages in this topic (76)

.

__,_._,___