Solid core insulators are the popular insulator used on electrical system and designed in any voltage level.

The end fittings of Solid core insulators shall comprise of galvanized malleable cast iron castings and steel, Brass inserts and Gunmetal castings.

The Solid core insulators are made from ceramic or silicone rubber materials features:
High aluminum porcelain materials
Reinforced glass fiber core with a silicone rubber housing
Cast cycloaliphatic resin

Solid core insulators can be divided into line post insulators, pin post insulator and station post insulators and made from porcelain or silicone rubber materials.

Relative Articles:
Power line insulators
Properties of silicones
Porcelain T&D Insulators
Line insulator pin