In the world of insulating materials, invisible microscopic defects are often the starting point of motor failure.
For Guangzhou Feisi Synthetic Materials Co., Ltd., quality is not just a slogan—it's a digital control system spanning the entire lifecycle from raw materials, production, and testing to delivery. Today, we take you behind the scenes on the production floor to reveal how Feisi products come to life.
一、原料把控：绝缘漆IQC入厂全检与双供应商策略
Policy: Reject substandard raw materials immediately. Secure quality at the first checkpoint.
All raw materials (epoxy resin, hardener, additives, etc.) must pass strict Incoming Quality Control (IQC) inspection before entering the facility. For waterborne epoxy insulating varnish systems, key checks include epoxy equivalent weight and volatile content of the resin, as well as amine value of the hardener to ensure stable reactivity. For self-bonding steel sheet coating resins, rheological properties and storage stability are additionally screened.
Document Verification
Each batch of raw material must include a COA (Certificate of Analysis) for verification of grade, batch number, and production date.
Physical and Chemical Indicator Testing
Epoxy Resin: Test epoxy equivalent, viscosity, and volatiles to ensure stable reaction activity.
固化剂：检测胺值、水分含量，防止配比失衡
Additives: Purity and Compatibility Testing
环保合规
Strictly test for restricted substances under RoHS, REACH, and other regulations to ensure compliance with domestic and international environmental standards.
Sample Retention Policy
Retain samples of each batch until six months after the product's expiration date to ensure full traceability from the source.
Data logging
All raw material inspection reports are synced to the ERP system for full batch traceability.
飞思标准：关键原料实行"一备一用"双供应商策略，且每批必检。近12个月原料合格率稳定在99.6%以上。
II. Precision Manufacturing: Automated Production of Waterborne Epoxy Insulating Varnish with PFMEA Control
原则：参数锁定，人机互补。标准化作业，减少人为误差。
广州飞思工厂采用全自动计量投料系统，最大程度减少人为误差。
自动配料
依托ERP系统下达配方指令，称重传感器精度达0.01g，确保配比误差<±0.5%
Vacuum degassing
生产过程中引入真空脱泡工序，消除液体内部微气泡，保证浸渍时漆液能充分填充线圈微隙
Online Monitoring (IPQC)
生产班长每小时抽检一次粘度与细度，质检员每2小时复核一次，数据实时上传系统
水性环氧绝缘漆产线
采用篮式研磨+真空脱泡工艺，控制研磨细度<15μm，确保漆液细腻无颗粒，浸渍时能充分填充漆包线微隙，杜绝高压下针孔击穿
Silicon Steel Self-Adhesive Coating Production Line
重点管控涂布流平性与低泡性，通过PID温控保证B-stage（预固化态）的可操作窗口稳定，适配客户辊涂/喷涂的高速节拍
Foresight Standard: Strictly implement IATF 16949 Process Potential Failure Mode and Effects Analysis (PFMEA). Automatically alarm and halt operations if critical process parameters (temperature, rotational speed, vacuum level) exceed limits.
3. Data-Driven: Insulating Varnish Laboratory Testing (GB/T 1981.1 & IEC 60216)
Simulated Condition Testing
针对FS7360R等硅钢自粘涂料，实验室定期模拟客户"涂覆→预固化→冲压→后固化"全流程，验证工艺窗口的稳定性
Oil-cooled aging test
Conduct ATF oil immersion aging tests for 100 hours to meet the needs of new energy oil-cooled motors, monitoring the retention rate of interlaminar shear strength.
飞思标准：出厂检测覆盖率100%，检测报告随货同行，支持第三方机构复检。
Benchmarking Standards Framework
Physical and Chemical Properties: Solid content and viscosity shall comply with GB/T 1725 and GB/T 1723, respectively.
Electrical Performance: Volume resistivity per GB/T 1410; dielectric strength per GB/T 1408.
Thermal Class: Assessed per GB/T 11021 / IEC 60216 thermal aging method (Class H, 180°C)
Curing Performance: Thick-layer curing; bond strength tested in accordance with GB/T 1981.1 "General Test Methods for Electrical Insulating Varnishes".
All factory metrics meet or exceed national standard minimums. Key performance parameters (such as resistivity) typically range from 3 to 5 times the national standard value, providing ample safety margin.
4. Traceability: ERP Batch Tracking and QR-Scanned COA E-Reports
原则：一码到底，终身追溯。为品质追溯上"双保险"。
Finished product retention sample
For each production batch, the laboratory retains a sample of 500g to 1000g in a temperature- and humidity-controlled storage room (temperature: 23±2°C, humidity: 50±10%), stored until 6 months after the product's expiration date.
出库复核（OQC）
仓库发货前，OQC专员再次核对品名、批号、数量、检测报告，确保单证相符
Batch Traceability
通过ERP系统，输入水性环氧绝缘漆或硅钢自粘涂料产品批号即可一键查询该批次对应的原料批次、生产班组、工艺参数、检测数据、发货去向，实现正向追踪与反向追溯闭环
飞思标准：产品包装桶身贴有唯一追溯二维码，客户扫码可查看电子COA报告，验货更便捷。
5. Outbound Ironclad Rules: "Three Reviews, Three Checks" Release Criteria for Automotive-Grade Insulating Varnish
Products must pass the final "three reviews and three checks" before leaving the warehouse:
Triple Review
First Review: Verify Order Details (Model, Quantity, Delivery Date)
二审：复核检验报告（全项指标合格）
Third Review: Confirm Logistics Requirements (Waterproof, Moisture-Proof, Damage-Resistant Packaging)
三查：
Step 1: Check packaging labels (including batch number, production date, and standard code)
Check 2: Shipping Documents (COA Report, MSDS)
Check 3: Loading protection (palletized transport + stretch wrap securing)
Only products that meet all requirements may be stamped with the "Approved for Release" seal before shipment.
飞思标准：成品一次交验合格率达99.92%，客户满意度连续三年保持98%以上。
从一滴树脂到一桶成品，从一组数据到一个批号，广州飞思的每一道工序，都在诠释对"品质"二字的敬畏。
我们深知，绝缘材料虽小，却关乎电机的大安全。无论是家电电机的稳定运行，还是新能源汽车的极速驰骋，飞思始终以车规级的严苛标准，守护每一次转动的可靠。
Guangzhou Feisi Synthetic Materials Co., Ltd. – Dedicated to water-based insulation, safeguarding motor safety.
VI. Frequently Asked Questions
Q1: Which certifications has Guangzhou Feisi's quality management system obtained?
The company is ISO 9001 certified and operates its production processes in strict accordance with IATF 16949 automotive quality management system requirements to ensure products meet automotive-grade standards.
Q2：如何确保不同批次产品性能的一致性？
Lock formulas and process parameters via the ERP system, source key raw materials from fixed suppliers, and implement strict in-process quality control (IPQC) inspections. Conduct 100% testing of critical finished product indicators (viscosity, solid content, resistivity, etc.) to ensure batch-to-batch variation remains within a minimal range.
Q3: What does the product test report include?
Each batch includes a COA (Certificate of Analysis) with key data such as solid content, viscosity, density, fineness, volume resistivity, and dielectric strength, stamped with the Quality Control seal. Third-party type test reports are available upon request.
Q4: What standards are used for product testing? How do they correspond to national or industry standards?
A：广州飞思检测体系完全对标国家及国际标准体系，核心对应关系如下：
Physical and Chemical Properties: Solid content and viscosity shall comply with GB/T 1725 and GB/T 1723, respectively.
Electrical Performance: Volume resistivity per GB/T 1410; dielectric strength per GB/T 1408.
Thermal Class: Assessed per GB/T 11021 / IEC 60216 thermal aging method (Class H, 180°C)
Curing Performance: Thick-layer curing; bond strength tested in accordance with GB/T 1981.1 "General Test Methods for Electrical Insulating Varnishes".
All factory specifications meet or exceed national minimum standards. Key performance metrics (such as resistivity) typically range from 3 to 5 times the national standard value, providing a substantial safety margin.
Q5: How can customers quickly verify process compatibility of self-adhesive silicon steel coatings (e.g., FS7360R) upon arrival?
A：建议按"三步法"快速验证，无需大型设备即可判断适配性：
Coating Appearance: After roller or spray coating, the film should be uniform with no runs or orange peel. After curing, no visible particles should be present (fineness < 15 μm is acceptable).
B-stage手感测试：预固化（80
120℃/3After cooling for 5 minutes, no powder should flake off when gently scratched with a fingernail, and the enamel coating on folded silicon steel sheets must remain crack-free. This indicates that the pre-curing window is within specification.简易粘结测试：取35片涂布片叠压，160-200℃/1~3MPa热压10min，冷却后尝试撕开，断面应为硅钢片本体撕裂（而非界面脱胶），即为工艺适配合格
Q6: What should I do if I have an issue with the product I received?
A: We have a comprehensive after-sales response system. Upon receiving feedback, our technical team will respond within 24 hours and retest the retained sample from the same batch. If a quality issue is confirmed, we offer unconditional returns or exchanges and cover all related shipping costs.
Q7：是否支持客户现场审厂？
Yes. We welcome new and existing customers to schedule online video factory tours or in-person visits. We will open our raw material warehouse, production lines, laboratories, and sample retention rooms to comprehensively showcase Feisi's manufacturing capabilities and quality control standards.
Q8：产品的保质期是多久？储存条件有何要求？
A: The shelf life of water-based insulating varnish is 36 months from the date of manufacture. Store in a cool, dry, and well-ventilated area at temperatures between 5°C and 35°C. Keep sealed; avoid freezing and direct sunlight. For specific storage requirements, refer to the product manual.
VII. Brand Information and Contact Details
Silicon Steel Self-Adhesive Coating / Waterborne Epoxy Insulating Paint — Choose Guangzhou Feisi Brand
Official hotline: 020-82793066
Water-based Paint Business: Engineer Liu 15920494556
Thiol Business: Engineer Zhang 13609004936
Overseas Hotline (Mobile): +86 15920494556
如需预约线上工厂视频带看或实地考察，请致电或邮件联系技术团队。