metalised closed cell foam pad question.
Forum rules
Ultralight Bushwalking/backpacking is about more than just gear lists. Ultralight walkers carefully consider gear based on the environment they are entering, the weather forecast, their own skill, other people in the group. Gear and systems are tested and tweaked.
If you are new to this area then welcome - Please remember that although the same ultralight philosophy can be used in all environments that the specific gear and skill required will vary greatly. It is very dangerous to assume that you can just copy someone else's gear list, but you are encouraged to ask questions, learn and start reducing the pack weight and enjoying the freedom that comes.
Common words
Base pack backpacking the mass of the backpack and the gear inside - not including consumables such as food, water and fuel
light backpacking base weight less than 9.1kg
ultralight backpacking base weight less than 4.5kg
super-ultralight backpacking base weight less than 2.3kg
extreme-ultralight backpacking base weight less than 1.4kg
Ultralight Bushwalking/backpacking is about more than just gear lists. Ultralight walkers carefully consider gear based on the environment they are entering, the weather forecast, their own skill, other people in the group. Gear and systems are tested and tweaked.
If you are new to this area then welcome - Please remember that although the same ultralight philosophy can be used in all environments that the specific gear and skill required will vary greatly. It is very dangerous to assume that you can just copy someone else's gear list, but you are encouraged to ask questions, learn and start reducing the pack weight and enjoying the freedom that comes.
Common words
Base pack backpacking the mass of the backpack and the gear inside - not including consumables such as food, water and fuel
light backpacking base weight less than 9.1kg
ultralight backpacking base weight less than 4.5kg
super-ultralight backpacking base weight less than 2.3kg
extreme-ultralight backpacking base weight less than 1.4kg
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• Page 1 of 1
metalised closed cell foam pad question.
by sailfish » Wed 12 Apr, 2023 5:58 pm
Today I bought a metallised closed cell foam mat for $4 from Vinnies. It seems quite firm & dense (black) foam (no brand name). I am thinking of keeping it in reserve for use under my NeoAir XLite in the deeper cold. I bought the XLite during the GFC when these things were very affordable on MassDrop. Now I am older & some 20 kg lighter, I sleep colder these days & this option is 1% of the cost of upgrading to an XTherm, plus I don't do many winter nights as the dark is sooo looong & boring & well cold. However, I am not sure whether the metallised side goes up or down. It doesn't seem cold to the touch unlike Mylar. Any ideas, Does it matter?
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sailfish - Athrotaxis cupressoides
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Re: metalised closed cell foam pad question.
by ribuck » Wed 12 Apr, 2023 6:10 pm
From a physics perspective it doesn't matter. The internal and external sides of the metallised layer can reflect heat back towards you.
Anyhow, most of the benefit will come from the closed cells rather than from the shiny surface.
Anyhow, most of the benefit will come from the closed cells rather than from the shiny surface.
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ribuck - Athrotaxis selaginoides
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Re: metalised closed cell foam pad question.
by sailfish » Wed 12 Apr, 2023 7:23 pm
Ta, that's what I thought but I wasn't sure as IR, convection & conduction are different processes. Well, the way it's rolled suggests silver side up & I found an image on ebay that looks the same. It's better protected that way too.
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sailfish - Athrotaxis cupressoides
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- Gender: Male
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