Silicone Rubber Testing & Laboratory Services
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.
ISO/TS 16949
ISO 9002
ISO 3808
ISO 9001
ISIRI 4267-2
ISO 17025
10993-5
10993-10
10993-4
Pharma
ASTM F756
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.
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.
Validations
| 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 |
Tensile Test
High Voltage test
Uniformity Test
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.
Testing Capabilities / Services Overview
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 Products 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
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 is integrated into every stage of production — from raw material selection to final batch validation. All WICSilicone products are tested in our ISO 17025-accredited laboratory according to certified procedures (ISO, DIN, JIS) for mechanical, thermal, electrical, and chemical performance. Our controlled manufacturing environments, advanced instrumentation, and traceable batch certification ensure consistent performance, safety, and regulatory compliance across automotive, medical, electrical, construction, and food-grade applications.
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.
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.
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.
Certifications & Compliance
Reinforcing our commitment to global standards, WICSilicone materials and processes meet European (EN), American (ASTM/ISO), and internationally recognized benchmarks. Manufactured from biocompatible, medical-grade silicone compounds, our products—from automotive parts and medical LSR molded solutions to electrical insulation, construction, and food-contact applications—ensure safety, regulatory compliance, and consistent performance.
Access downloadable certificates, including ISO, FDA, REACH, and RoHS, to verify our dedication to quality, reliability, and environmental responsibility.
Official Certifications & Accreditations
- ISO 9001 – Internationally recognized quality control and management system
- DIN EN ISO 9002 – TÜV-certified quality system for ignition cable production
- IATF 16949– Automotive quality certification for automotive-grade silicone components.
- ISIRI 4267-2 – Certified for manufacturing automotive ignition cables (Iran)
- ISIRI–ISO/IEC 17025 – Accredited laboratory for testing and calibration
- ISO 10993-4 – Blood–material interaction testing
- ISO 10993-10 – Skin irritation and sensitization testing
- ISO 10993-5 – In vitro cytotoxicity
- European Pharmacopoeia – Certified silicone elastomers for closures and pharmaceutical tubing
Industry Standards We Follow (Compliance)
Automotive & Industrial Standards
- ISO 3808 – Performance standard for automotive ignition cable systems .(Quality Management)
- LV112 / LV214 (Automotive cables) – Electrical, thermal, and fire qualification for automotive wiring.
- SAE J2031 — Silicone ignition cable construction
- ISO 6722 — Automotive wire requirements
- ISO 7622 — Thermal/mechanical cable insulation testing
- UL 94 — Flammability rating for silicone components
- RoHS — Hazardous substance restriction (Chemical & Material Safety)
- REACH — EU chemical safety compliance (Chemical & Material Safety)
- Halogen-Free — Chlorine/bromine-free formulations– essential for fire-safe cables. (Chemical & Material Safety)
- PAH / VOC / Heavy metals — Material safety for medical and automotive use (Chemical & Material Safety)
Medical & Biocompatibility Standards
- ISO 10993-1 — Biological evaluation framework
- ISO 10993-11 — Systemic toxicity
- ISO 10993-18 — Chemical characterization
- USP Class VI — Biocompatibility for medical polymers
- FDA 21 CFR 177.2600 — Silicone for food and skin contact
- ISO 13485 (Process Alignment) — Medical device quality principles
- ISO 14644 — Cleanroom-compatible production through partner facilities
Material & Compound Testing Standards
- ASTM D412 — Tensile properties
- ASTM D2240 — Shore A hardness
- ASTM D573 — Heat aging
- ASTM D2000 — Rubber material classification
- ASTM D624 – Tear resistance
Certification Roadmap
- ISO 13485 — Medical device manufacturing
- ISO 14001 — Environmental management– Environmental compliance for international manufacturing.
- ISO 45001 — Occupational health & safety– Safety management for chemical/industrial environments.
Technical Compliance by Product Category (Detailed Requirements)
Industrial & Automotive Silicone Compounds
General-Purpose HTV Silicone Rubber
- ASTM D412 – Tensile strength
- ASTM D624 – Tear resistance
- ASTM D2240 – Hardness
- ASTM D573 – Heat aging
High Tear Strength Silicone
- ASTM D624 – Primary tear validation
- ISO 34-1 – Precision tear testing
- ISO 37 – Mechanical property profile
Low Hardness Silicone
- ASTM D2240 – Soft hardness
- ASTM D395 – Compression set
- ASTM D412 / D624 – Mechanical support tests
HTV Self-Lubricating Silicone
- Oil bleed / migration stability
- ASTM D573 – Aging
- ASTM D2240 / D412 / D624 – Mechanical baseline
High Voltage Resistant Silicone (Electrical Insulation Grade)
Electrical Performance
- IEC 60243 – Dielectric strength
- IEC 60112 (CTI) – Surface tracking resistance; critical for HV insulation.
- ASTM D149 – Breakdown voltage
- ASTM D257 – Volume/surface resistivity
Fire & Flame Requirements
- UL 94 (V-0 / V-1) – Flame resistance of polymeric materials.
- UL 1581 (VW-1) – Wire and cable vertical flame test.
Ceramic Fire-Resistant Silicone (Ceramifiable Grade)
Fire Integrity & Cable Function
- EN 50200 (PH30/60/90/120) – Circuit integrity during fire exposure.
- IEC 60331 — Vertical and bundled flame propagation (Cable functionality under fire.)
Building / Infrastructure Fire Codes
- EN 50575 (CPR) — EU cable rating
- NFPA 262 / UL 910 (Plenum) — Low flame spread/low smoke for air-handling spaces.
Material Safety
- UL 94 V-0 / 5VA – Flame performance (5VA for ceramic grades).
- IEC 61034 – Low smoke density.
- IEC 60754 – Low halogen acid gas generation.
- LSZH Certification – Low smoke, zero halogen composition.
Medical, Food & Hygiene Silicone Compounds
Medical Grade HTV Silicone
- ISO 10993– Biocompatibility (cytotoxicity, sensitization, irritation).
- USP Class VI– Medical biological reactivity.
- FDA 21 CFR 177.2600– Food/skin-contact safety.
- ISO 11137 — Sterilization compatibility
Medical LSR (Liquid Silicone Rubber)
- Full ISO 10993 suite
- USP Class VI
- FDA 21 CFR 177.2600
- ISO 14644 — Cleanroom molding compatibility
- ISO 11135 / 11137 — ETO/Gamma sterilization
- Purity & volatile content (GC-MS)
Transparent Silicone
- Optical transmission testing
- ASTM G154 — UV aging
- Transparency retention test
- REACH / RoHS
- FDA 21 CFR (if contact-related)
Platinum Catalyst Gel Systems
- ISO 10993
- USP Class VI
- Extractables / volatile testing
- Cross-link density stability
- FDA 21 CFR (if applicable)
Silicone Grease
Industrial
- ASTM D2265 — Dropping point
- ASTM D217 —– Penetration
- ASTM D6184 — Oil separation
Medical / Food-Grade
- ISO 10993
- NSF H1 – Food-safe lubricant
- FDA 21 CFR
Food-Grade Silicone
- FDA 21 CFR 177.2600– Food contact approval
- LFGB —German food safety
- EU 10/2011 — Overall Migration limits
- Odor/taste neutrality
- Peroxide residual testing
WICSilicone’s materials meet both European Pharmacopoeia and ISO 10993 biocompatibility requirements.
Our medical-grade silicones are tested for cytotoxicity, sensitization, and hemolysis — ensuring safety for healthcare and life science applications.