How to Bond Natural Rubber Natural rubber is a difficult substrate to bond.  Permabond 105 is the first choice for bonding natural rubber.  Use Permabond 105 without primer as Permabond POP Primer does not increase the bond strength. PERMABOND® 105 is a low viscosity high purity cyanoacrylate adhesive. It is ideal for use on hard-to-bond … Continue reading How to bond natural rubber