Oct 18, 2018 at 2:23 am #3560341
Best Adhesive to Bond Aluminum to Carbon Fiber?
next postOct 18, 2018 at 2:23 am #3560342
The aluminum plug in my LT4 broke free. The carbon fiber shaft is sound.
What is the best adhesive for bonding these two parts?Oct 18, 2018 at 3:33 am #3560352tony gBPL Member
Personally I would ask gg what they used.
<p style=”text-align: left;”> That being said I use quickcure 5. Two part epoxy for my bondings.</p>
<p style=”padding-left: 30px;”></p>Oct 18, 2018 at 4:20 am #3560365
I asked. They declined. BUT – they sent a new lower, free of charge. Kudos!
I’d like to repair this one to have on hand as a spare.Oct 18, 2018 at 5:49 am #3560373idesterBPL Member
@doug-iLocale: The Cascades
when i had this issue years ago, i used JB Weld. Worked fine.Oct 18, 2018 at 5:53 pm #3560439
Good ‘ol JB Weld. Never would have thought of it.Oct 18, 2018 at 8:40 pm #3560454Roger CaffinModerator
@rcaffinLocale: Wollemi & Kosciusko NPs, Europe
In general, epoxy adhesives bond well to aluminium.
Bonding to CF tubing is a bit more tricky: it depends on what plastic was used.
I have had very good results from Loctite Black Max superglue.
CheersOct 18, 2018 at 9:02 pm #3560460JCHBPL Member
When constructing my MYOG tent poles using high quality CF tubes from an eBay vendor in China, I glued the ferrules in with Gorrilla Glue 2-part epoxy from Lowes. Worked great.Oct 18, 2018 at 9:36 pm #3560466John KBPL Member
Those are dis-similar materials with different expansion coefficients. Epoxy may not be the best choice here. If you NEVER want to get it apart, use something like 3M 5200 adhesive (expensive and takes a very long time to cure). Alternatively, you could use 3M 100% silicone adhesive/sealant.Oct 19, 2018 at 1:23 am #3560488James MarcoBPL Member
@jamesdmarcoLocale: Finger Lakes
Actually, several different epoxies might work well. They tend to stay elastic through a wide temperature range so the slight change in expansion is often well accommodated.Oct 19, 2018 at 4:57 am #3560518Sam FarringtonBPL Member
@scfhomeLocale: Chocorua NH, USA
JB Weld also. First suggested here in response to an OP from me several years ago. It is the only adhesive I tried that glues ALU alloy to same for applications like a tube telescoped into a tube, or a rod telescoped into a tube. But did try it with a carbon rod telescoped into an alloy tube and it has never flinched. Others, including other epoxies, will lose their grip if one tube is leveraged to twist, like making a pack frame and not wanting the tubes to loosen and bend the frame out of desired shape. And it is cheap and easy to find to boot. No online order necessary in the US. Have read that it has small metal particles in it that increase the grip, but have no proof of that. Will rely on it for making tubular sidearms that must not allow the front points of a buckleless pack belt to slip out of position due to any rotation from a loosening of the bond. That’s a lot of leverage to resist. Greg’s application is a picnic compared to that. Of course, once it sets, it will be that way forever.Oct 20, 2018 at 2:09 am #3560655Ryan SmithBPL Member
@violentgreenLocale: East TN
3M DP420 creates an excellent bond with carbon fiber and aluminum, but is also expensive. I’ve had good luck with plain ol’ two part epoxy from AutoZone.
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