01 / INSULATOR
Composite Insulator Housing
Silicone rubber for sheds and housings requiring outdoor weather resistance, hydrophobic behavior, electrical insulation and resistance to tracking and erosion.
Power Industry Silicone Rubber Manufacturer
Silicone Rubber Compounds for Insulators, Wire & Cable
Factory-direct HTV/HCR silicone rubber grades developed for composite insulator housings, surge arresters, wire and cable insulation, cable joints, terminations and other demanding electrical applications.
- Composite insulator and surge arrester grades
- Wire and cable insulation compounds
- Tracking, erosion and dielectric performance
- High tear strength and processing stability
- Custom hardness, color and formulation support
- TDS, SDS, COA and sample support
Электронная почта: info@yakows.com · Include your application, process, target hardness and estimated quantity.
Factory DirectMaterial production and technical communication from one supplier
Power FocusGrades for insulators, arresters, wire, cable and accessories
Batch ControlIncoming inspection, formulation control and finished batch testing
Техническая поддержкаGrade selection, trial samples and processing recommendations
Application Match
Built Around the Electrical Component You Manufacture
The correct silicone rubber grade depends on the final component, production process and required electrical and mechanical performance. Start with your application below.
02 / SURGE ARRESTER
Arrester Housing & Electrical Molding
Power-grade compounds for molded housings and electrical components requiring dependable dielectric strength, dimensional control and outdoor durability.
03 / WIRE & CABLE
Wire and Cable Insulation
High-strength silicone rubber compounds for extrusion or related processing, with high elongation, electrical insulation and flexible cable performance.
04 / CABLE ACCESSORIES
Joints, Terminations & Sealing Parts
Material options for cable joints, terminations, stress-control components, cold-shrink parts and electrical sealing applications.
Material Solutions
Two Core Product Families for the Power Industry
Our current highlighted grades cover outdoor insulator housings and high-performance wire and cable applications. Final selection should be based on your process, component design and test requirements.
YK-3160 Series
Insulator
Surge Arrester
Insulator & Surge Arrester Silicone Rubber
Grades designed for composite insulator sheds, housings and electrical protection components. The series combines mechanical properties with breakdown field strength, volume resistivity and tracking-and-erosion performance.
- 60–65 Shore A typical hardness
- Outdoor electrical housing applications
- Tracking and erosion resistance
- Dielectric and volume resistivity performance
YK-6140 Series
Wire
Cable
High-Elongation Wire & Cable Silicone Rubber
Milky-white compounds with 40 Shore A typical hardness, high tensile strength and elongation for flexible wire, cable insulation and related electrical applications.
- ≥700% typical elongation
- ≥8.0 MPa typical tensile strength
- 22 kV/mm breakdown field strength
- High volume resistivity and flexibility
Typical Properties Data
Compare Power-Industry Silicone Rubber Grades
Composite Insulator Grades
YK-3160D · YK-3160Z · YK-3160G
For composite insulator housings, sheds, surge arrester housings and related outdoor electrical components.
| 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 Class) | mm | ≤2.5 | ≤2.5 | ≤2.5 |
| Диэлектрическая проницаемость | — | ≤5 | ≤5 | ≤5 |
| Объёмное удельное сопротивление | Ом·см | 1 × 1014 | 2 × 1014 | 2 × 1014 |
Typical values, not guaranteed specifications. Test method, acceptance criteria and current TDS should be confirmed for each project.
YK-3160DBalanced general-purpose option within the listed insulator series.
YK-3160ZHigher listed tensile and electrical values than YK-3160D.
YK-3160GHighest listed tear, tensile, elongation and breakdown values in the series.
Wire & Cable Grades
YK-6141L · YK-6140L
For flexible wire and cable insulation applications requiring high elongation, tensile strength, tear strength and electrical performance.
| Недвижимость | Единица | YK-6141L | YK-6140L |
|---|---|---|---|
| Твёрдость | Берег А | 40 ± 3 | 40 ± 3 |
| Внешний вид | — | Milky White | Milky White |
| Plasticity | — | 165–205 | 160–200 |
| Плотность | г/см³ | 1.12 ± 0.03 | 1.12 ± 0.03 |
| Прочность на разрыв | МПа | ≥8.0 | ≥8.0 |
| Elongation | % | ≥700 | ≥700 |
| Permanent Deformation at Fixed Extension | % | ≤7.0 | ≤7.0 |
| Прочность на разрыв | кН/м | ≥25 | ≥30 |
| Linear Shrinkage | % | 3.2–3.5 | 3.2–3.5 |
| Диэлектрическая проницаемость | — | 2.5 | 2.8 |
| Объёмное удельное сопротивление | Ом·см | ≥2.0 × 1016 | ≥2.0 × 1016 |
| Breakdown Field Strength | кВ/мм | 22 | 22 |
Typical values, not guaranteed specifications. Confirm processing conditions, curing system and final component test requirements before selection.
YK-6141LBalanced plasticity and high electrical performance for wire and cable applications.
YK-6140LHigher listed tear strength of the two cable grades.
Performance Priorities
What Power-Component Manufacturers Need From Silicone Rubber
Our technical discussion starts with the performance risks of the final electrical component rather than a generic material description.
Tracking & Erosion Resistance
Important for outdoor insulator and arrester housings exposed to electrical stress, contamination and moisture.
Breakdown Field Strength
Supports electrical insulation performance in insulators, cable insulation and related high-voltage components.
Объёмное удельное сопротивление
High resistivity is essential for limiting leakage current through insulating silicone rubber materials.
Tear & Tensile Strength
Helps the compound withstand demolding, assembly, cable handling and mechanical stresses in service.
Elongation & Flexibility
Especially important for wire, cable, cold-shrink parts and components that must accommodate movement or deformation.
Processing Stability
Consistent plasticity, hardness and shrinkage help manufacturers control extrusion, molding and final dimensions.
B2B Manufacturing Support
From Formula Control to Shipment Documentation
A power-industry material supplier must support more than a product name. We organize the project around repeatable batches, technical files, application testing and clear communication with your purchasing and engineering teams.
Incoming Material InspectionRaw materials checked before controlled compounding.
Formula & Batch ControlProduction records support repeatability and traceability.
Physical Property TestingHardness, tensile, elongation, tear and density evaluation.
Electrical Testing SupportDielectric, resistivity and project-specific verification.
Technical DocumentsTDS, SDS, COA and relevant supporting files.
Export CoordinationPackaging, shipment documents and order communication.
Quality Workflow
A Practical Production and Quality-Control Process
The exact control plan can be aligned with your approved specification, sample validation requirements and purchasing process.
STEP 01
Incoming Inspection
Raw materials and key inputs are checked before entering the production process.
STEP 02
Controlled Compounding
Formula, mixing and batch records are controlled for repeatable processing behavior.
STEP 03
Batch Verification
Relevant physical and electrical properties are checked according to the agreed control plan.
STEP 04
Packaging & Delivery
Approved material is packed, identified and prepared with the required order documents.
Procurement Support
Information Your Purchasing and Engineering Teams Need
Before sample approval or mass production, the commercial and technical scope should be clear. The following support can be discussed for your project.
Grade & Formula Selection
Selection based on insulator, arrester, wire, cable or cable accessory application and required performance.
Sample Availability
Trial material can be discussed for processing evaluation and final component testing.
Custom Requirements
Hardness, color, formulation and performance targets can be reviewed with the technical team.
Technical Files
Current TDS, SDS, COA and available test documentation can be supplied for project review.
Packaging & Shipment
Packaging format, order quantity, lead time and export documents are confirmed during quotation.
Processing Support
Share your extrusion or molding process so the team can discuss grade fit and trial conditions.
Project Workflow
From Application Requirement to Approved Batch
A clear qualification process reduces material-selection risk and helps both teams move efficiently toward regular purchasing.
Component & Process
Send the final application, process, hardness, current material and target standards.
Technical Review
We compare your requirements with the YK-3160 or YK-6140 series and discuss alternatives.
Trial Validation
Evaluate processing behavior and test the finished insulator, wire, cable or accessory.
Mass Production
After approval, confirm the specification, packaging, batch documents and delivery plan.
Buyer Questions
Часто задаваемые вопросы
Which grades are intended for composite insulators?
The highlighted insulator series includes YK-3160D, YK-3160Z and YK-3160G. Final selection depends on your molding process, component design and target physical and electrical performance.
Which grades are intended for wire and cable?
YK-6141L and YK-6140L are the highlighted wire and cable grades. Both show 40 ± 3 Shore A hardness, ≥8.0 MPa tensile strength and ≥700% elongation in the supplied typical data.
Can you recommend a grade from our existing material data?
Yes. Send the current grade or TDS, processing method, finished-component tests and any issues you want to improve. The technical team can use this information for an initial comparison.
Can we request a sample before placing a production order?
Sample availability can be discussed for process trials and finished-component validation. Include the required quantity, application and delivery country in your inquiry.
What documents can be provided?
Available project documents may include TDS, SDS, COA and relevant test or compliance files. Confirm the exact documents needed when requesting a quotation.
Can hardness, color or formula be customized?
Custom requirements can be reviewed based on application, volume, processing method and performance targets. Development feasibility should be confirmed by the technical team.
Are the values on this page guaranteed specifications?
No. They are typical values reproduced from the supplied product tables. The current official TDS, agreed specification and batch acceptance criteria should control the final order.
What should we include in an inquiry?
Please include the final component, production process, target hardness, test standard, current material, annual or trial quantity, country and any required documents.
Send Us Your Insulator, Wire or Cable Requirements
Our team will review your application and help identify a suitable YK silicone rubber grade for technical evaluation.
- Final component or drawing
- Molding or extrusion process
- Required hardness and color
- Physical and electrical targets
- Current material or TDS
- Trial and annual quantity