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Old 02-03-2009, 06:19   #31
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Quote:
Originally Posted by chala View Post
They had it wraped in a sort of water proof cloth in batten 10mm thick by 100mm wide, was easy to do they said, did the job them self. For curiosity Soundbounder are you able to find the R value in metric? just to compare with other product.
The 3M website might be able to help you:

3M Thinsulate™ Insulation - Products - Thinsulate™ Lite Loft™ Insulation (US)

I am not sure if that is the information you are looking for.
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Old 02-03-2009, 07:00   #32
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I really thought hard about vacuum panels but the cost/potential failure of losing the vacuum just did not weigh out. I started with the molded frp icebox after cutting off the 30 year old spray foam. I ended up using polyiso from the local insulation depot, buying the odd end pieces from the mfg. process. cuts well with a handsaw and razor knife, sands well for contours. filled the small gaps with great stuff, wrapped it with aluminized bubble wrap (radiant barrier) and two layers of 8 mil for the all important moisture barrier. 3-1/2" on the sides and 5" underneath and toward hull. 4 cubic feet inside. Formed a 1 cu ft evaporator from large flat to follow hull contour. A small pancake fan and lights. I make ice, keep ice cream frozen and use approx 22-25 amps/day summer. I used a Frigoboat Capri 50 with smart speed controller. the insulation cost me $50 including the bubble wrap. I mostly followed my neighbor Richard Kollmann's advice...I could not be more happy as my old bd3 (which lasted twenty years before giving out) Adler-Barbour super cold used 48 amps/day.
http://siren.thereeds.homeunix.org/gallery/album01 Sorry, I have not kept this up to date and did not take more pic's!http://siren.thereeds.homeunix.org/gallery/album01
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Old 02-03-2009, 09:35   #33
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Thinsulate is the stuff they put in cold weather coats... right?
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Old 02-03-2009, 09:37   #34
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Thinsulate is the stuff they put in cold weather coats... right?
YES!!!
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Old 02-03-2009, 13:45   #35
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according to wikipedia:

Tog (unit)

From Wikipedia, the free encyclopedia


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The tog is a measure of thermal resistance, commonly used in the textile industry, and often seen quoted on, for example, duvets.
The Shirley Institute in Britain developed the tog as an easy-to-follow alternative to the SI unit of m2K/W. Launched in the 1960s, the Shirley Togmeter is the standard apparatus for rating thermal resistance of textiles, commonly known as the Tog Test.
A tog is 0.1 m2K/W. In other words, the thermal resistance in togs is equal to ten times the temperature difference (in °C) between the two surfaces of a material, when the flow of heat is equal to one watt per square metre.
According to British retailer John Lewis, tog guidelines for duvets are as follows:[1]
Lightweight summer duvet:4.5 togSpring/Autumn weight duvet:9.0 - 10.5 togWinter weight duvet:12.0 - 13.5 togAnother unit of thermal resistance of textiles is the clo, equal to 1.55 togs (1 tog = 0.645 clo).[2]


P20 Thinsulate



Specifications

Weight: 150g/m²
Thinsulate provides warmth without bulk and offers equal thermal resistance to conventional fillings for about half the thickness. The fabric does not "mat" down. It retains its insulation qualities when damp. Thinsulate is odourless, non-allergic and can be hand or machine washed. It washes well and dries quickly. The TOG rating for this fabric is 2.79.
Width 150cms



But what that translates to in Rvalue, Im not sure. Thinsulate is used for sleeping bags and cold weather clothing to simulate the warmth of down, but retaining the ability to insulate when wet. Not sure how that would work insulating a refrig or freezer. I would go with foam, due to structeral stiffness and I think, better insulating properties.
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Old 02-05-2009, 09:09   #36
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Aerogel

Christian,

I am working on getting a price for this stuff. Has a value of R-10 per inch. Have you decided on your box insulation.

http://www.aerogel.com/products/pdf/Spaceloft_DS.pdf
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Old 02-05-2009, 13:57   #37
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That's really interesting stuff.
Let us know what you find out re pricing.

Steve B.
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Old 04-05-2009, 12:23   #38
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Quote:
Originally Posted by senormechanico View Post
That's really interesting stuff.
Let us know what you find out re pricing.

Steve B.
Y
eah nice stuff. Glacier bay uses it in their R50 panels as well.
I too would be interested in pricing.
Bob
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Old 04-05-2009, 21:01   #39
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It costs $3.03 per sqft with a 10mm thickness. By my calculation I need 320 sqft. I will wrap the box's with 8 layers, then make a plastic condom and vacuum it and seal that with tape. Shoot polyurethane between the hull and complete package. This should give me in excess of R-30. Pricey stuff but I just do not have the room for 6" of foam. Here is the link to the distributor, David at the Connecticut office was very helpful. Aspen AeroGel Spaceloft Insul-Cap -Anchor Companies

Jack
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Old 05-05-2009, 08:09   #40
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why not just use a vacuum panel?
Wont vacuuming this in plastic compress the areogel and decrease your r value?
The 320sq. ft calculation is your total amount needed? How big is your box?

Bob
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Old 05-05-2009, 08:55   #41
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Quote:
why not just use a vacuum panel?
Wont vacuuming this in plastic compress the areogel and decrease your r value?
The 320sq. ft calculation is your total amount needed? How big is your box?
Mostly the complexity of fitting a vacuum panel around the curves and angles of the box (my largest plane is the curve against the hull) nothing is square and the end joins seem to be problematic.

After speaking to the Anchor folks and outlining my plan the tech thought that it would work. I will go back and check about the compression and possible R value loss with Aspen.

Box is 10 sqft both 4 sqft for the freezer and 6 for the frig.
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