ISO 9001:2015
ISO 9001:2015
Quality Management System certification — systematic processes for consistent quality, customer satisfaction, and continuous improvement across all operations.
Quality & Certifications
ISO-certified quality systems, rigorous testing, and industry certifications ensuring consistent product reliability.
Quality Commitment
Quality Is the Foundation of Everything We Do
At Yousan, quality is not just a department — it is a company-wide commitment embedded in every stage of our operations. From raw material selection through final product delivery, we maintain strict quality standards to ensure every roll of adhesive tape meets the performance specifications our customers depend on.
Our quality management system is built on ISO 9001:2015 foundations and enhanced with industry-specific certifications including IATF 16949 for automotive applications. We continuously invest in testing equipment, quality personnel training, and process improvement to deliver consistent, reliable products batch after batch.
Every product we manufacture is backed by full batch traceability, comprehensive test data, and certificates of conformance — giving our customers the confidence they need for demanding industrial applications.
Quality Laboratory
Certifications
Industry Certifications & Compliance
Our products and manufacturing processes are backed by internationally recognized certifications and compliance standards, ensuring consistent quality, environmental responsibility, and regulatory adherence.
ISO 14001:2015
ISO 14001:2015
Environmental Management System certification — demonstrating our commitment to environmental responsibility in manufacturing processes.
IATF 16949
IATF 16949
Automotive Quality Management System — meeting the stringent requirements of automotive OEM supply chain quality standards.
UL Recognized
UL Recognized
UL recognition for selected adhesive tape products — meeting safety and performance standards for electrical and fire-resistant applications.
REACH Compliant
REACH Compliant
Compliance with European REACH regulations — ensuring products meet the latest chemical substance safety requirements.
RoHS Compliant
RoHS Compliant
Compliance with RoHS directive — restricting hazardous substances in electronic and electrical equipment supply chains.
SGS Tested
SGS Tested
Independent SGS third-party testing and verification for material properties, adhesion performance, and safety compliance.
SONY GP
SONY GP
Sony Green Partner certification — meeting Sony environmental quality standards for materials used in electronic product manufacturing.
Quality Control
4-Stage Quality Control Process
Our systematic quality control process covers every critical stage from raw material intake to final shipment — ensuring consistent product performance, dimensional accuracy, and visual quality.
01
Incoming Material Inspection
All raw materials undergo rigorous inspection upon arrival — including adhesive resins, backing films, release liners, and chemical additives. We verify material certificates, test physical properties, and ensure traceability before releasing materials to production.
02
In-Process Quality Control
During coating, laminating, curing, and converting processes, our quality team monitors critical parameters in real-time — including coating thickness, adhesion values, temperature profiles, tension control, and visual appearance. Statistical process control (SPC) tools are used throughout.
03
Finished Product Testing
Every production batch undergoes comprehensive final testing — including peel adhesion, shear strength, tensile strength, elongation, thickness uniformity, heat resistance, and electrical properties as applicable. Products are released only after full compliance verification.
04
Packaging & Shipping Audit
Before shipment, finished products are inspected for proper packaging integrity, labeling accuracy, quantity verification, and shipping documentation completeness. Environmental protection and moisture-proof packaging ensure products arrive in optimal condition.
Testing Laboratory
In-House Testing Capabilities
Our fully equipped in-house testing laboratory enables comprehensive material characterization, performance verification, and quality assurance testing. We follow international test standards including ASTM, ISO, FINAT, and GB national standards.
01
Peel Adhesion Testing
180° and 90° peel adhesion testing at various temperatures and substrates per ASTM, FINAT, and GB standards.
02
Shear Strength Testing
Static and dynamic shear strength measurement for bond durability and structural performance evaluation.
03
Tensile Strength & Elongation
Material tensile testing and elongation at break measurement for mechanical performance characterization.
04
Thickness Measurement
Precision digital thickness gauge testing for total thickness, adhesive layer, and backing material consistency.
05
Temperature Resistance
High-temperature and low-temperature aging tests in environmental chambers for thermal stability verification.
06
Dielectric Strength
Electrical insulation breakdown voltage testing for products used in electrical and electronic applications.
07
Aging & Durability
Accelerated aging tests including UV exposure, humidity cycling, and thermal shock for long-term reliability assessment.
08
Surface Energy Analysis
Contact angle measurement and surface energy testing for adhesion compatibility assessment on various substrates.
09
Flame Retardancy
UL 94 flame rating testing and flame spread evaluation for fire safety compliance in critical applications.
Gallery
Certificate Gallery
Certificate 1
Certificate 2
Certificate 3
Certificate 4
Certificate 5
Certificate 6
Certificate 7
Certificate 8
Contact
Need Quality Documentation or Compliance Information?
Contact our quality team for certificates of conformance, material safety data sheets, test reports, or specific compliance documentation for your procurement requirements.