Polymer insulator suppliers supply all type of polymer insulators to the world, and among these suppliers, China polymer insulator suppliers have more experience.

Insulators provided by Polymer insulator suppliers:
Silicone rubber polymer suspension / tension / long rod insulators
Silicone rubber polymer pin insulators
Silicon rubber composite line post insulators
Silicon rubber composite insulators for railways
Silicone rubber composite polymer crossarm insulators
Silicone rubber composite polymer station post insulators
Composite polymer guy strain insulators

By molding directly over the end fitting, or by using track resistant polyurethane, moisture ingress to the fiberglass rod is prevented. Polymer insulator suppliers have sold these good composite polymer insulators in many countries.