Bonding Silicone Rubber To Aluminum

I have an aluminum cradle with a toggle clamp that holds a cylinder in place.

Bonding silicone rubber to aluminum.

The thicker formula is easier to control and suitable for vertical surfaces. Gorilla 5002801 original waterproof polyurethane glue 8 ounce bottle brown pack of 1 4 6 out of 5 stars 2 586 j b weld 31319 rtv silicone sealant and adhesive black 3 oz. Works well for bonding rubber as well as plastic metal wood ceramic leather paper and other materials. Spray a solvent based activator accelerator aa on either the silicone rubber or metal.

Gorilla may be ideal for gluing glass to glass but only a few droplets need to be used because it will spread more on two smooth surfaces. Modern adhesive technologies utilize both singleand two coat adhesive formulations with the preference depending upon the service needs of the bonded assembly. Silicone does not have a problem with sticking to other materials but it is the psa that might. Historically several bonding methods have been employed within the rubber industry in an effort to achieve a dependable and durable rubber to metal bond.

Rough the silicone rubber and the metal with a low grit coarse sand paper. Silicone rubber does not inherently bond well to anything there are lots of silicone based lubricants that illustrate the slippery nature of the base material. For bonding epdm sponge rubber or rubber sheeting to most porous surfaces with low soak in our sbr line of industrial adhesives can be used. Saturate the silicone rubber surface with an adhesion promoter designed to work with poly s.

If using a clamp place a thin block of wood on the backside of the aluminum. When 100 solids fast bonding and flow over a larger area are the answer 3m hot melt adhesives offer a wide range of open times to meet your assembly needs. Trying to stick psa backed silicone sheetto aluminium would produce a good bond but using the same sheet and trying to stick it to teflon the bond would not be very good at all. Place the rubber on the aluminum surface where the epoxy glue is.

It can be held in place with a workbench clamp or masking tape to ensure that it does not move. Has developed a solid expertise when it comes to bonding silicone rubber to aluminum and other substrates. The cylinder gets a fastener torqued so this cradle must keep the cylinder from rotating.