Silicone Rubber Testing & Laboratory Services
Industry-Leading Lab for Silicone Testing
Equipped with advanced instrumentation and staffed by experienced professionals, our laboratory adheres to international standards (ISO, DIN, JIS) to provide accurate, reliable, and repeatable testing for all silicone materials, including LSR, HTV, and specialty grades.




| Category | Key Tests |
|---|---|
| Mechanical | Tensile strength · Elongation · Tear resistance · Shore hardness (A/D) · Rheometry (ML/ΔT) · Thermal shock |
| Electrical | Dielectric strength · Insulation resistance · Capacitance · Corona & tracking resistance (HV) |
| Thermal / Chemical | Heat aging · Thermal stability (TGA/DSC) · Oil/solvent immersion · Chemical resistance · Low-temp flexibility |
| Environmental | Salt spray · Weathering (UV/ozone) · Flame resistance (UL94 / FMVSS) · Humidity cycling |
ISO/TS 1694
ISO 9002
ISO 3808
ISO 9001
ISIRI 4267-2
ISO 17025
10993-5
10993-10
10993-4
Pharma
ASTM F756
Our comprehensive testing capabilities cover mechanical, thermal, electrical, and environmental properties, ensuring each silicone material — from medical and food-grade LSR to industrial and consumer applications — meets stringent performance, compliance, and reliability standards before production.
Tensile Test
High Voltage test
Uniformity Test
Wire Iran proudly stands as the first company in Iran to achieve ISO 17025 certification, highlighting our dedication to precision and excellence in laboratory testing. Since February 2002, our specialized laboratory for automotive ignition cables and polymer materials has driven advancements through collaboration with the National Standard Institute on research, testing, and product development.
Testing Capabilities / Services Overview
Our comprehensive testing services focus on performance and durability. While automotive cables are subjected to stringent electrical tests to verify voltage capacity, resistance, and conductivity, silicone material, and products can undergo extensive testing for heat resistance, flexibility, and chemical stability. These tests ensure silicone products perform reliably under various environmental and mechanical stresses.
Spark Plug Cable Set Tests
| Test | Purpose | Procedure | Applications |
|---|---|---|---|
| Erosion Test | Assess resistance to tears and cracks | Conducted at 180°C for 168 hours. | Important for automotive cables exposed to extreme conditions over long periods. |
| Temperature Shock Test | Evaluate response to rapid temperature changes | Samples are cycled 20 times between -30°C and 200°C, with a 10-second transfer time. | Crucial for components used in environments that experience drastic temperature variations, such as engines. |
| Salt Spray Test | Assess electrical consistency and corrosion resistance | Samples are exposed to salt spray for 48 hours to simulate harsh conditions. | Ideal for components exposed to marine or corrosive environments. |
Spark Plug Cable Tests
| Test | Purpose | Procedure | Applications |
|---|---|---|---|
| High Voltage Testing | Evaluate insulation strength under high voltage | Samples are subjected to elevated voltage levels to identify breakdown points, ensuring electrical safety and durability. | Essential for components used in high-voltage environments requiring stringent electrical insulation standards. |
| Capacitance Testing | Measures cable’s ability to store electrical charge | Critical in ensuring signal integrity in automotive and high-performance environments. | |
| Corona Resistance Testing | Assess resistance to electrical discharges | Important for cables operating in high-voltage systems where electrical discharge could compromise performance. | |
| Flame Resistance Testing | Ensures safety in fire-prone environments | Cables are exposed to flame for 15 seconds and must self-extinguish within 70 seconds. | Critical for automotive and industrial sectors, especially in fire-risk zones. |
| Low-Temperature Flexibility | Evaluate performance at -50°C | Suitable for environments requiring low-temperature durability, such as cold climate automotive systems. | |
| High-Temperature Oil Resistance | Test exposure to oils/fluids | Critical for automotive applications where exposure to oils and fluids is inevitable. | |
| Insulation Testing (Megger) | Evaluate insulation resistance | Essential in high-voltage systems where insulation integrity is crucial for preventing electrical failures. | |
Silicone Product Tests
| Test | Purpose | Procedure | Applications |
|---|---|---|---|
| Tensile / Tear / Hardness / Elongation | Evaluate mechanical properties | Crucial for industries requiring precise material performance, including automotive, aerospace, and industrial applications. | |
| Rheometric Testing | Assess material uniformity under pressure/temperature | Important for manufacturers needing assurance of material consistency during production. | |
| Temperature Shock | Evaluate material performance under thermal stress | Samples are subjected to sudden temperature fluctuations to observe performance under thermal stress. | Important for silicone products used in extreme temperature variations, such as in automotive and aerospace components. |
| High Heat Oil Resistance | Assess resistance to high-temperature oils | Samples are immersed in heated oil to assess stability, degradation, and performance. | Crucial for automotive and industrial applications where components are exposed to high temperatures and lubricants. |
| Megger Testing | Evaluate insulation resistance | A Megger device applies a controlled voltage to measure the resistance of insulation materials, detecting any potential degradation or faults. | Essential for products used in high-voltage systems or automotive industries, where insulation integrity is critical for preventing electrical failures. |
Silicone Compound Tests
| Test | Purpose | Procedure | Applications |
|---|---|---|---|
| Curing Uniformity | Ensure consistent crosslinking and optimal mechanical properties | Measure gelation and crosslinking behavior using rheometry and cure analysis; verify uniform hardness across sample | All silicone parts; critical for medical, automotive, and electronics applications |
| Oil Resistance | Evaluate material stability when exposed to oils and lubricants | Immersion of samples in standard oils at controlled temperature; measure changes in weight, volume, hardness, and tensile strength | Automotive seals, gaskets, cable insulation, industrial components |
| Thermal Stability | Confirm performance under high/low temperature extremes | Thermal aging tests, heat shock, and long-term exposure; evaluate dimensional, mechanical, and color stability | Engine components, sensors, high-temperature gaskets, consumer appliances |
| Electrical Insulation | Verify dielectric properties and safety for electronic use | Measure dielectric strength, insulation resistance, and corona/arc resistance using standard electrical testing equipment | Connectors, keypads, electronic gaskets, insulation components |
| Biocompatibility | Ensure safety for medical and food-grade applications | Conduct ISO 10993 and USP Class VI testing for cytotoxicity, sensitization, and irritation; additional sterilization validation | Catheters, valves, baby products, medical stoppers, food-grade silicone components |
| Rheology / Flow Behavior | Control material flow and mold filling characteristics | Viscosity measurements, flow curve analysis, and injection/transfer simulation | LSR and HTV molding, micro-molding, multi-cavity production |
| Tensile Integrity | Confirm mechanical strength and elongation properties | Tensile testing per ASTM/ISO standards; evaluate elongation at break, tensile strength, and tear resistance | Seals, gaskets, tubing, flexible industrial components |
These tests guarantee processing stability, chemical resistance, and thermal endurance, ensuring products perform reliably under extreme industrial conditions.
Quality Assurance & Certified Validation
| Documentation Type | Purpose |
|---|---|
| Certificates of Analysis (CoA) | Verification of mechanical, thermal, and chemical properties for each batch |
| Batch Records | Detailed documentation of formulation, processing conditions, and laboratory test data |
| Compliance Documentation | Proof of conformity with ISO, DIN, JIS, and sector-specific regulatory standards |
Our quality framework integrates real-time inspection and post-production testing. Samples are evaluated for hardness, elongation, tensile strength, and curing uniformity, while random sampling safeguards dimensional and process stability.
Detailed reports, complete with performance graphs that outline temperature and curing time measures, ensuring that the final products deliver optimal performance and reliability in their intended applications. Every report includes test data confirming batch consistency and curing control.
Samples are analyzed for hardness, elongation, and tensile strength. Approved batches receive a quality code before production.
Random sampling and real-time testing at critical checkpoints ensure stability, detect anomalies early, and minimize waste.
Every batch undergoes post-production evaluation to meet internal benchmarks and international quality standards.
Documentation Summary:
- CoA: Confirms mechanical, thermal, and chemical test results for each batch.
- Batch Records: Record formulation, processing, and laboratory data.
- Compliance Reports: Verify adherence to ISO, DIN, JIS, and regulatory standards.
This traceability framework enables engineers, auditors, and OEMs to confirm compliance across automotive, medical, industrial, and food-contact applications. By combining accredited validation, traceable records, and strict process monitoring, our quality assurance consistently meet global performance, safety, and regulatory requirements.
At Wire Iran, quality assurance is integrated into every production stage — from raw material formulation to final batch certification.
All WICSilicone compounds and products are tested in our ISO 17025-certified laboratory, following international standards (ISO, DIN, JIS) to validate mechanical, thermal, electrical, and chemical performance.
Each batch is fully traceable and supported by certified documentation, including Certificates of Analysis (CoA), batch records, and compliance reports verifying conformity with FDA, USP Class VI, RoHS, and REACH standards. This ensures consistent reliability across medical, automotive, industrial, and food-grade applications.
Need Laboratory Testing or Certification Support?
Whether you need silicone material verification, product certification, or compliance documentation, our ISO 17025-certified laboratory provides precise testing and detailed analysis for every application.
Accredited testing, fast reporting, and complete traceability — ensuring your silicone materials meet every standard.