Topic
How H2O proof is…?
Forum Posting
A Membership is required to post in the forums. Login or become a member to post in the member forums!
Home › Forums › Gear Forums › Make Your Own Gear › How H2O proof is…?
- This topic is empty.
-
AuthorPosts
-
May 24, 2007 at 6:14 am #1223366
I have some general questions about waterproofness of different fabrics. The Momentum90 fabric sold at Thru-Hiker….How water-resistant is it? I mean would this stand up to having a rain storm directly on it (if stretched tight) and keep things dry?
What about Epic?
Which of the two is better (Epic or Momentum)?
This is probably a really silly question to ask, but I am just wondering. I want to get something that is waterproof, but breathable (and light weight, of course)to use as a bivy top where I may NOT have a tarp over head.Any input is appreciated.
May 24, 2007 at 10:45 am #1390161Initially the momentum's dwr will look just as good as Epic. But with a little dirt, sweat, abrasion, etc. the dwr on the Momentum will break down in as little as a day of abuse and require refreshing. At the least that means cleaning in a very rinsable cleaner like Akso Sportwash and reactivating by ironing or drying. Maybe reapply a good fluoropolymer DWR such as Akso's. Epic doesn't really wear out like dwr, and can be reactivated simply by washing. So Epic has better field maintainability than dwr treated nylon like Momentum. Obviously this is less important for a bivy than for clothing.
Epic works well in tents, bivys and gaitors, and winter gear where breathability and repellency outweigh true waterproofness. For rain wear it craps out pretty quickly even if you seal the seams because of capillary action through the porous fabric around pack straps, youy back panel, etc. DWR's behave similarly. If you need a real rain garment, neither Epic or a dwr only fabric can be relied upon day in, day out. That may also apply to bivy use without a tarp depending on your climate and bag insualtion. For a bivy any sort of hoop frame that will keep the fabric away from you as a taught panel will make both work better at keeping out water. Somewhere on this site are reports that Epic plugs up and stops breathing in bivies below freezing, which is outside my experience.
Epic will be easier to care for, but Momentum will be lighter by a couple ounces. The Momentum is available in broader color choices. Epic generates static and picks up dust readily.
So for a bivy, available Epic will be brightly colored, heavier, better long term water repellancy. The Momentum will be lighter, less repellant after a little wear and use, and comes in bright and neutral colors.
-
AuthorPosts
- You must be logged in to reply to this topic.
Forum Posting
A Membership is required to post in the forums. Login or become a member to post in the member forums!
Our Community Posts are Moderated
Backpacking Light community posts are moderated and here to foster helpful and positive discussions about lightweight backpacking. Please be mindful of our values and boundaries and review our Community Guidelines prior to posting.
Get the Newsletter
Gear Research & Discovery Tools
- Browse our curated Gear Shop
- See the latest Gear Deals and Sales
- Our Recommendations
- Search for Gear on Sale with the Gear Finder
- Used Gear Swap
- Member Gear Reviews and BPL Gear Review Articles
- Browse by Gear Type or Brand.