Hidrofobicidade
Surface water repellency supports insulation performance during rain, humidity and contamination.
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 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
Isolamento elétrico
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.
Propriedades mecânicas
Tensile strength, tear strength and elongation support molding, demolding and finished housing integrity.
Propriedades elétricas
Breakdown field strength, resistivity and resistance to tracking and erosion support external electrical insulation.
Processamento
Flow, cure response and release behavior influence cycle consistency and molded surface quality.
Inscrição
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
Silicone Rubber Housing
Continuous molded elastomer surrounding the internal arrester structure.
02
Weather Sheds
Molded silicone profiles extending the external insulation surface.
03
MOV Stack
Internal metal-oxide varistor elements enclosed by the polymer housing.
Material Performance
Key performance requirements for surge arrester housing compounds.
Electrical, mechanical, environmental and processing properties work together in the finished silicone rubber housing.
Tracking & Erosion
Resistance to electrical surface degradation is important for demanding outdoor environments.
Dielectric Properties
Breakdown field strength and volume resistivity support high-voltage insulation performance.
Resistência mecânica
Tensile, tear and elongation affect molding, demolding and housing integrity.
Resistência às intempéries
UV, ozone, moisture and temperature variation are key factors in outdoor electrical service.
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
- Ozônio
- Industrial Pollution
- Salt Fog
- Temperature Cycling
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.
| Propriedade | Unidade | YK-3160D | YK-3160Z | YK-3160G |
|---|---|---|---|---|
| Dureza | Costa A | 65 ± 3 | 65 ± 3 | 60 ± 3 |
| Resistência ao rasgo | kN/m | ≥ 10 | ≥ 10 | ≥ 12 |
| Resistência à tração | MPa | ≥ 4.0 | ≥ 4.5 | ≥ 5.0 |
| Alongamento | % | ≥ 220 | ≥ 220 | ≥ 240 |
| Permanent Deformation at Fixed Extension | % | ≤ 4 | ≤ 4 | ≤ 4 |
| Densidade | g/cm³ | 1.48 ± 0.03 | 1.46 ± 0.03 | 1.46 ± 0.03 |
| Breakdown Field Strength | kV/mm | ≥ 20 | ≥ 21 | ≥ 22 |
| Tracking & Erosion Resistance (1A4.5) | mm | ≤ 2.5 | ≤ 2.5 | ≤ 2.5 |
| Constante dielétrica | — | ≤ 5 | ≤ 5 | ≤ 5 |
| Resistividade volumétrica | Ω·cm | 1 × 10¹⁴ | 2 × 10¹⁴ | 2 × 10¹⁴ |
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
Qualidade da superfície
Stable material and molding conditions support consistent finished surfaces.
Seleção de materiais
Select the silicone rubber around the actual application.
Component design, electrical requirements and production conditions all influence the most suitable compound.
Inscrição
Surge arrester housing, composite insulator or another high-voltage silicone component.
Environment
Voltage level, pollution conditions, humidity, coastal exposure and temperature.
Geometry
Housing size, wall thickness, shed profile and component weight.
Processo
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.
Electrical Testing
Material performance for demanding insulation applications.
IEC 60587
Tracking and erosion resistance of electrical insulating materials under severe environmental conditions.
Propriedades elétricas
Breakdown field strength, dielectric constant and volume resistivity for high-voltage insulation applications.
Propriedades mecânicas
Hardness, tensile strength, tear strength and elongation for molded silicone rubber housings.
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.
STEP 01
Inscrição
Component design, environment and performance targets.
STEP 02
Grade Comparison
Compare YK-3160 grades against electrical and mechanical requirements.
STEP 03
Molding Trial
Evaluate flow, curing, release and finished-part performance.
STEP 04
Production
Move the selected material into regular manufacturing supply.
Technical FAQ
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.
Informações sobre o projeto
Application · Material · Process · Electrical Requirements
Component · Hardness · Molding Method · Trial Quantity · Annual Demand