We are building a cable similar to a spark plug cable and would like to better secure the rubber boot that goes over the spark plug itself to the insulated wire providing the input power. Both are made of a silicone rubber. Is there a specific type of glue or adhesive that would provide a strong bond between the two? We are trying to keep the boot from being pulled off or sliding on the wire.
Silicone rubber is one of the most challenging substrates to bond, and there are only a few adhesives that can make a strong bond. One option that has been successful in other silicone rubber applications is 3M™ Scotch-Weld™ Plastic & Rubber Instant Adhesive PR100 with 3M™ Scotch-Weld™ Instant Adhesive Primer AC79. The basic steps are 1) apply the primer to both parts, 2) let it dry completely, 3) apply the instant adhesive as soon as the primer is dry.
Additional details including application instructions can be found on the data sheets. Please leave a comment if you have additional questions or want other suggestions.