Topic
Cuben Fiber Adhesion to Metal
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 › Cuben Fiber Adhesion to Metal
- This topic is empty.
-
AuthorPosts
-
Jun 6, 2011 at 1:23 pm #1275002
Has anyone tried to bond/glue/heat Cuben fiber to a metal surface? I know it sounds crazy. But I am looking to try to bond some of the really heavy (1.5oz) cuben to a high grade aluminum for a non stressed connection. Some kind of strong contact cement would probably do the job, but I thought I would ask the cuben experts first.
Do any of the old timer triathletes remember the J-DISC?
Thanks for any helpJun 6, 2011 at 2:25 pm #1745640I don't see why it'd be a problem. Just think of it as mylar, because that's what you're actually bonding to.
Jun 6, 2011 at 9:25 pm #1745851If the cuben you're using has really thick film, you could roughen it and the metal surface first. I've found that contact cements (like 3M 4693H plastic bonding cement) has good peel strength but lackluster shear on cuben, whereas urethanes like Hysol U09fl have good shear strength but poor peel. What about mechanical fasteners, like rivets?
Jun 7, 2011 at 6:05 am #1745917The mylar would be glued to a mavic cxp-33 aluminum rim. There still has to be enough room left to have a good braking surface.
Who can afford a 1500$ carbon fiber disc wheel anymore?
I had a jdisc as my first disc wheel 25 years ago and loved it. There are some still around, but they are probably all 7-speed. The old mylar on these wheels is not near as nice or strong as the thick cuben. If you can see one pic the the mylar is actually a little floppy. The standard fix was to take a hair dryer and warm the mylar slightly to tighten it up.
A good disc can save significant time over a 40k time trial. I just need something to help me run faster..Jun 7, 2011 at 2:18 pm #1746173So, did the old mylar J-discs have a seam in the mylar? Was it cut so it would form a shallow cone, or just stretched a bit to form the cone? I guess my only concern is that cuben is anisotropic, while mylar alone is (much closer to) isotropic, depending on the degree of biaxial orientation in the film. It might be easier to get the plain mylar tight as a drum with the hair dryer for this reason. Cuben can be shrunk with heat, but not predictably like plain mylar. I've found that cuben wrinkles and deforms in crazy, unexpected ways when it contracts at high temperatures. You might find it very frustrating to get and maintain a smooth, low drag surface with cuben.
Also, on a small scale, cuben has a wavy surface due to the fibers, whereas mylar is very smooth, although this is not likely to make any difference in drag that you could detect.
Jun 8, 2011 at 1:33 pm #1746541Colin, thanks for your responses.
I was thinking that the thicker stuff might be stiffer and want to lay flatter. The old discs did not have a seam but were glued to the hub and the rim. I didnt think of the effect that heat may have on the multi-directional nature of the inner fibers. It may not be worth it, but I will probably give it a try anyway after a little more research on adhesives. -
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.