Plastic to plastic: "contact adhesive" or two-part epoxy?

Plastic to plastic: "contact adhesive" or two-part epoxy? What are the pros and cons of each?

I need to glue two different types of plastic together, and I'm not sure if I should use "contact adhesive" or two-part epoxy. Or, I could use contact adhesive on the facing surfaces, let it cure, and then add epoxy around the edges where the parts join.

I'm not exactly sure what types of plastics these are. So far the contact adhesive seem to be curing well and I'm hopeful that two-part epoxy will also work well.

I'm building a mount to hold a camera to a bicycle (and plan to publish a how-to when it's done), so it will need to be strong, resistant to vibration and weather, and strong. I really don't want to drop the camera: It's close enough to a wheel that a tether could cause more immediate problems than letting the camera hit the ground.


Update: Both the contact adhesive and epoxy (separately) seem to be holding the test pieces well. It'll be another 18+ hours before I really start yanking on them but it seems like either type of adhesive would be decent. Of course, I want more than decent; I want excellent!

Burf5 years ago
Don't forget the heat factor. Many contact cements do not hold up well in heat. If it is going to be exposed to direct sunlight in the summer, its possible it could loosen or fail altogether, particularly if it has a weight pulling against its grip on the mated surfaces.