Engineered for Power Grids – IOTA HTV 344 High Voltage Silicone Rubber
Modern power grids require insulation materials that perform under high electrical stress, harsh weather, and long service life. The IOTA HTV 344 Series Silicone Rubber is precisely engineered for such challenges — widely used in high voltage insulators, lightning arresters, and bushings.
This high performance silicone rubber is supplied as a peroxide-cured compound, ready for molding into finished parts. After curing, it forms a dielectric layer with excellent resistance to tracking, erosion, and arc exposure — helping maintain grid reliability.
Available in six product codes, the series offers flexibility in mechanical properties. Hardness ranges from 50 to 70 Shore A, with consistent density values between 1.48–1.52 g/cm³. Elongation at break varies by grade, from 170% to 250%, while tear strength reaches up to 12 kN/m for enhanced durability.
In terms of electrical safety, all grades achieve FV-0 flame retardancy. The volume resistivity is 10¹⁴–10¹⁵ Ω·cm, and dielectric strength reaches 28 kV/mm on select grades. The material also demonstrates 1A4.5 tracking resistance, making it suitable for polluted environments.
Packaged in 20 kg cartons, the material should be stored unopened in a dry, shaded area. Shelf life is 12 months from manufacturing date, with a recommendation to process within 3 months for optimal performance. If stored longer, remilling time should be extended.
For grid operators and component manufacturers, IOTA HTV 344 delivers the balance of electrical and mechanical strength you can trust.
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