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Sahara45
9
Jul 15, 2019
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Is it a waterproof pack? Thank you
Jul 15, 2019
dandurston
5116
Dan Durston
Jul 16, 2019
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Sahara45The material is very waterproof because it is a multi-layer (composite) material where there is a true layer of plastic inside that stops all water. This material is more waterproof that what is used in almost every other pack, since packs commonly use a PU coating on the inside that wears off after a season or so. However, the seams of the pack are not sealed. This material doesn't work well for seam tape, and it's not practical to seam seal at the factory, so the pack is very water resistant and if you want a fully waterproof pack you'd want to seam seal it with a sealant like SeamGrip.
(Edited)
Jul 16, 2019
Sahara45
9
Jul 16, 2019
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dandurstonThank you for answering this so thoroughly Dan. Do you know roughly how much extra weight the seam sealing would add? I'm TOTALLY clueless about these things. Thank you 😊😊👍👍👍
Jul 16, 2019
dandurston
5116
Dan Durston
Jul 16, 2019
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Sahara45The weight of seam sealing really depends on how thick you apply it, but generally it would be about 0.5oz and not likely more than 1oz. Some seam sealants are quite thick, so users will apply them quick thick but they still don't work very well if they are thick like glue because they aren't soaking into the material to seal right down to the internal plastic layer. It's lighter and better to dilute the seam sealant a bit (if you have a thick one) so it is thinner and can be painted on easily where it soaks in. I've done that with another pack that I owned made of the same material, and it added about 0.5oz. The company "Gear Aid" (formerly McNett) makes a variety of products that can be used, and often these just vary in how thick they are. I think "Tent Sure", "Seam Grip" and their shoe repair product are all basically the same thing but in different thicknesses. So if you buy the thinner option (Tent Sure) then you shouldn't need to dilute it and could just paint it on. Sealing the seams on the inside looks nicer but a few of the seams (near the frame) are hard to access from inside so you'd likely need to seal those on the outside.
Jul 16, 2019
Sahara45
9
Jul 16, 2019
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dandurstonLove your thorough answers. Thank you. I really appreciate that and am sure that is part of the reason your stuff is flying off the shells. Good luck
Jul 16, 2019
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