Electrical Grade HTV Silicone Rubber

HTV Silicone Rubber for Surge Arrester Housings

Yakows supplies electrical-grade HTV silicone rubber compounds for polymer surge arrester housings, composite insulators and other outdoor high-voltage insulation components — combining electrical insulation, hydrophobic surface performance, mechanical strength and reliable industrial processing.

YK-3160 Series · HTV / HCR Silicone Rubber · High-Voltage Outdoor Insulation

Electrical grade HTV silicone rubber compound for high voltage insulation
Electrical Silicone Rubber

Silicone rubber engineered for high-voltage outdoor insulation.

HTV silicone rubber, also known as high-consistency silicone rubber or HCR, is a solid silicone elastomer cured at elevated temperature to form durable molded rubber components.

For high-voltage insulation, the compound must combine electrical performance with the characteristic outdoor advantages of silicone elastomers.

Hydrophobicity, dielectric strength, volume resistivity, tracking and erosion resistance, tensile strength, tear strength and processing stability all contribute to the performance of the molded housing.

In polymer surge arresters, HTV silicone rubber forms the external housing and weather sheds surrounding the internal electrical core.

The same material platform can also be applied to composite insulators and other molded outdoor high-voltage insulation components.

  • HTV / HCR silicone rubber compound
  • High-voltage external insulation
  • Molded silicone housings and sheds
  • Outdoor electrical applications
YK-3160 Material Platform
An electrical-grade HTV silicone rubber platform developed around insulation performance, outdoor durability, mechanical integrity and production processing.
01 / MATERIAL

HTV Silicone Elastomer

High-temperature-vulcanizing silicone rubber for demanding molded electrical components.

02 / ELECTRICAL

Insulation Performance

Dielectric properties combined with high resistivity and resistance to electrical surface degradation.

03 / MECHANICAL

Molded Housing Strength

Tensile, tear and elongation properties support housing integrity and thin shed geometries.

04 / PROCESSING

Production Performance

Compound handling, mold filling, curing and demolding are considered alongside finished electrical properties.

Why Silicone Rubber

Material properties suited to outdoor electrical insulation.

Silicone elastomers combine electrical insulation, hydrophobic surface behavior, outdoor durability and mechanical flexibility.

01

Hydrophobic Surface Behavior

Silicone rubber resists surface wetting, helping limit continuous conductive water films during rain, humidity and contaminated conditions.

02

Электроизоляция

High volume resistivity and dielectric performance support high-voltage molded insulation applications.

03

Tracking & Erosion Resistance

Electrical-grade compounds resist surface degradation associated with contamination, leakage current and electrical stress.

04

UV & Ozone Stability

Silicone elastomers perform in environments exposed to sunlight, ozone, moisture and changing temperatures.

05

Elastomeric Flexibility

The cured material retains flexibility while supporting dimensional movement and complex molded geometries.

06

Molded Shed Profiles

HTV silicone rubber can form thin, detailed weather sheds and external housing geometries used in electrical insulation.

Compound Engineering

High-voltage silicone rubber requires a balanced formulation.

Hardness alone does not define an electrical silicone rubber compound.

A suitable material combines silicone elastomer characteristics with mechanical reinforcement, electrical properties and controlled processing behavior.

The balance between these properties determines how the material behaves during molding and in the finished outdoor component.

Silicone Matrix

Provides flexibility, temperature resistance, hydrophobic surface behavior and environmental durability.

Mechanical Properties

Tensile strength, tear strength and elongation support molding, demolding and finished housing integrity.

Electrical Properties

Breakdown field strength, resistivity and resistance to tracking and erosion support external electrical insulation.

Обработка

Flow, cure response and release behavior influence cycle consistency and molded surface quality.

Заявка

Component geometry, environmental exposure, production equipment and performance targets determine the final grade selection.

Silicone Rubber in the Arrester

Silicone rubber forms the external insulation system.

In a polymer-housed metal-oxide surge arrester, HTV silicone rubber surrounds the internal electrical structure and forms the external housing and weather sheds.

The molded silicone surface is exposed directly to the outdoor environment while providing the external electrical insulation profile.

01
Корпус из силиконовой резины

Continuous molded elastomer surrounding the internal arrester structure.

02
Навесы от непогоды

Molded silicone profiles extending the external insulation surface.

03
MOV Stack

Internal metal-oxide varistor elements enclosed by the polymer housing.

Polymer surge arrester with HTV silicone rubber housing Technical cutaway showing silicone rubber housing, weather sheds, MOV stack and metal fittings. Навесы от непогоды Силиконовая резина HTV Silicone Housing External Insulation MOV Stack Electrical Core Metal Fitting Connection
Material Performance

Key performance requirements for surge arrester housing compounds.

Electrical, mechanical, environmental and processing properties work together in the finished silicone rubber housing.

01

Гидрофобность

Surface water repellency supports insulation performance during rain, humidity and contamination.

02

Отслеживание и эрозия

Resistance to electrical surface degradation is important for demanding outdoor environments.

03

Dielectric Properties

Breakdown field strength and volume resistivity support high-voltage insulation performance.

04

Mechanical Strength

Tensile, tear and elongation affect molding, demolding and housing integrity.

05

Устойчивость к погодным воздействиям

UV, ozone, moisture and temperature variation are key factors in outdoor electrical service.

06

Processing Stability

Flow, curing and release characteristics influence cycle consistency and surface quality.

Outdoor Service

Silicone rubber between the electrical system and the environment.

Surge arrester housings operate outdoors through rain, humidity, sunlight, ozone, industrial contamination, coastal salt and repeated temperature changes.

The silicone rubber surface must maintain electrical insulation performance while retaining mechanical integrity throughout environmental exposure.

  • Rain
  • Humidity
  • UV
  • Озон
  • Industrial Pollution
  • Salt Fog
  • Циклические изменения температуры
YK-3160 Series

HTV silicone rubber compounds for electrical insulation.

YK-3160D, YK-3160Z and YK-3160G are electrical-grade HTV silicone rubber compounds developed for outdoor high-voltage applications.

The series can be applied to polymer surge arrester housings, composite insulators and related molded electrical insulation components.

YK-3160D Balanced electrical-grade compound

65 Shore A hardness with balanced mechanical and electrical properties.

YK-3160Z Enhanced electrical performance

65 Shore A hardness with higher listed tensile strength, breakdown field strength and volume resistivity.

YK-3160G Higher mechanical performance

60 Shore A hardness with higher listed tear, tensile, elongation and breakdown values.

Недвижимость Единица YK-3160D YK-3160Z YK-3160G
Твёрдость Берег А 65 ± 3 65 ± 3 60 ± 3
Прочность на разрыв кН/м ≥ 10 ≥ 10 ≥ 12
Прочность на разрыв МПа ≥ 4.0 ≥ 4.5 ≥ 5.0
Elongation % ≥ 220 ≥ 220 ≥ 240
Permanent Deformation at Fixed Extension % ≤ 4 ≤ 4 ≤ 4
Плотность г/см³ 1.48 ± 0.03 1.46 ± 0.03 1.46 ± 0.03
Breakdown Field Strength кВ/мм ≥ 20 ≥ 21 ≥ 22
Tracking & Erosion Resistance (1A4.5) mm ≤ 2.5 ≤ 2.5 ≤ 2.5
Диэлектрическая проницаемость — ≤ 5 ≤ 5 ≤ 5
Объёмное удельное сопротивление Ом·см 1 × 10¹⁴ 2 × 10¹⁴ 2 × 10¹⁴
HTV silicone rubber production for electrical insulation
Processing Performance

Stable silicone rubber processing for complex electrical housings.

Polymer housings and thin shed profiles require consistent compound behavior during material handling, mold filling, curing and demolding.

Processing stability affects cycle performance, dimensional consistency, surface quality and the integrity of the finished silicone housing.

01

Compound Handling

Consistent material behavior supports repeatable production preparation.

02

Mold Filling

Controlled flow supports housing walls and thin weather shed profiles.

03

Cure Stability

Repeatable cure behavior supports predictable production cycles.

04

Demolding

Tear strength and process control support removal of thin molded sheds.

05

Surface Quality

Stable material and molding conditions support consistent finished surfaces.

Выбор материала

Select the silicone rubber around the actual application.

Component design, electrical requirements and production conditions all influence the most suitable compound.

Заявка

Surge arrester housing, composite insulator or another high-voltage silicone component.

Окружающая среда

Voltage level, pollution conditions, humidity, coastal exposure and temperature.

Geometry

Housing size, wall thickness, shed profile and component weight.

Процесс

Injection, transfer or compression molding, curing system and process conditions.

Current Material

Existing compound, hardness, material properties and production performance.

Electrical Tests

Dielectric, tracking, erosion and additional application requirements.

Электрические испытания

Material performance for demanding insulation applications.

IEC 60587

Tracking and erosion resistance of electrical insulating materials under severe environmental conditions.

Electrical Properties

Breakdown field strength, dielectric constant and volume resistivity for high-voltage insulation applications.

Mechanical Properties

Hardness, tensile strength, tear strength and elongation for molded silicone rubber housings.

Yakows HTV silicone rubber material supply
From Sample to Production

Silicone rubber evaluation for your molding process.

Material selection begins with the electrical and mechanical requirements of the final molded component.

Production trials then evaluate the compound on actual tooling and equipment, including mold filling, cure response, release and finished-part quality.

ШАГ 01
Заявка

Component design, environment and performance targets.

ШАГ 02
Grade Comparison

Compare YK-3160 grades against electrical and mechanical requirements.

ШАГ 03
Molding Trial

Evaluate flow, curing, release and finished-part performance.

ШАГ 04
Production

Move the selected material into regular manufacturing supply.

Часто задаваемые технические вопросы

HTV silicone rubber for surge arrester housings.

What type of silicone rubber is used for polymer surge arrester housings?
Electrical-grade HTV or HCR silicone rubber is used for molded polymer housings requiring electrical insulation, outdoor durability, hydrophobic surface behavior and mechanical strength.
Which part of the surge arrester is made from silicone rubber?
The silicone rubber forms the external polymer housing and weather sheds surrounding the internal electrical structure.
Why is hydrophobicity important for outdoor electrical insulation?
Hydrophobic surface behavior reduces continuous wetting of the silicone surface during rain, humidity and contaminated conditions.
Can YK-3160 be used for composite insulators?
Yes. The YK-3160 electrical silicone rubber series is also applicable to composite insulators and related outdoor high-voltage components.
What information is useful for comparing silicone rubber grades?
Application, current material, target hardness, molding process, component geometry, electrical properties and service environment.
Which YK-3160 grade should be selected?
Grade selection depends on the required hardness, mechanical properties, electrical performance and molding conditions.
Electrical HTV Silicone Rubber

Evaluate YK-3160 for your high-voltage molding project.

Send your application, current silicone rubber, target hardness, molding process and electrical property requirements.

Информация о проекте Application · Material · Process · Electrical Requirements

Component · Hardness · Molding Method · Trial Quantity · Annual Demand

Напишите мне,
Я буду тронут

Давайте поговорим!

Высококачественное силиконовое сырье и качественные услуги помогут вам более эффективно завоевать рынок.

Подписывайтесь на нас: