Hi,

I'm after a structual adhesive for a brake torque arm on a motocross bike. We currently make these in alloy but I would like to try a Carbon Fiber one. 
I'm planning on using CF tubing with machined 6082 alloy inserts set into each end, to allow the fitment of threaded rose joints. The alloy inserts will be anodized, before fitment.

The brake arm, and inserts, will be under tension everytime the brake is applied, and the suspension moves. (which is quite a lot on a motocross bike!) Obviously, I don't want the ends pulling out of the tube, as that would be very dangerous.

What adhesive would be best? ET515? (I'll be using this for another project I'm working on) ET500? Or is there something else/better I should be looking at?

Thanks

Stevie

I would recommend our ET515 Semi Flexible 15min Epoxy Adhesive for bonding the inserts into the tube.  It is very good at bonding metals to carbon but it also has a higher flexural strength under vibration than other adhesives. It may be described as "semi-flexible" but in real terms it is still a rigid adhesive just with a higher flexural strength.

You would need to key both contact surfaces heavily so that you get the best mechanical lock when bonded.


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant