Silicon is certified by ROHS, which is environmentally friendly.
Silicon covers are soft with good toughness and elasticity to fit different size terminals.
Silicone terminal covers have high thermal stability from -40 to 230.
Silicone terminal covers have good electrical insulation and excellent water repellency, which is the high reliability for electrical equipment in wet conditions.
Silicone covers have a much longer service life than PVC ones.
Silicone material reaches UL-94V0 flammability rating.