Bonding silicone rubber to aluminum
Bonding silicone rubber to aluminum
(OP)
I have an aluminum cradle with a toggle clamp that holds a cylinder in place. The cylinder gets a fastener torqued, so this cradle must keep the cylinder from rotating.
instead of increasing the toggle clamp force (and risking deforming the cylinder) we lined to the cradle with a thin strip of U channel silicone rubber (thanks Mcmastercar ;) )
What is a good adhesive that will bond these two substrates together? must be cheap/readily available. I don't have much time to "test". I am guessing an automotive silicone based sealer would work, but figured it never hurts to ask you guys.
reference material: http://www.mcmaster.com/#3510k5/=5puul2
instead of increasing the toggle clamp force (and risking deforming the cylinder) we lined to the cradle with a thin strip of U channel silicone rubber (thanks Mcmastercar ;) )
What is a good adhesive that will bond these two substrates together? must be cheap/readily available. I don't have much time to "test". I am guessing an automotive silicone based sealer would work, but figured it never hurts to ask you guys.
reference material: http://www.mcmaster.com/#3510k5/=5puul2





RE: Bonding silicone rubber to aluminum
RE: Bonding silicone rubber to aluminum
I can't post a picture. It is defense related.. I am sure you can guess what the "cylinder" may or may not be ;)
RE: Bonding silicone rubber to aluminum
2. heavily abrade the surface of aluminum before bonding
3. consider fastening a metal-backed rubber pad to the cradle with fasteners.
4. drill through and countersink the opposite side of the cradle to give a rubber pad that doesn't just depend on adhesive bond; this requires the silicone to extrude through the holes into the countersinks on the opposite side
RE: Bonding silicone rubber to aluminum
RE: Bonding silicone rubber to aluminum
RE: Bonding silicone rubber to aluminum
You could insert mold the silicone onto the aluminum. That might be reasonable if it's high quantity.
Other than that, you are probably best off using VHB (Very High Bond) tape.
Some people scoff when they hear tape for industrial applications, but it's really the way to go.
You are best off calling a rep @ 3M, describing your application, and having them recommend a specific grade.
Chris Loughnane
http://www.pdnotebook.com
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RE: Bonding silicone rubber to aluminum
Cheers
Greg Locock
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RE: Bonding silicone rubber to aluminum
Use neoprene rubber strips. Bond with contact cement.
RE: Bonding silicone rubber to aluminum
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2. Have rubber vulcanized onto your custom made steel blanks. It doesn't have to be complicated.
RE: Bonding silicone rubber to aluminum
Also might just form this:
http://www.mcmaster.com/#9515k711/=5q8vln
and use fasteners.
Fortunately, this is for our FSRs and I do not need to qualify the materials.
RE: Bonding silicone rubber to aluminum
Tunalover