We are authorized distributor of international insulation & adhesive brands including 3M, LG, Dow, Saint-Gobain, BASF, Avery Dennison. We provide one-stop solutions of genuine insulating substrates and custom precision die-cutting bonding service.
We process PI, PET, mica sheet, flame-retardant mylar, insulating foam, thermal-insulation composite sheet, FR fiberglass board and other insulation materials. Custom services include adhesive lamination, multi-layer bonding, ultra-thin cutting and integrated forming with special holes. Our parts feature high voltage resistance, flame retardancy, wide temperature tolerance, breakdown resistance and moisture aging resistance, preventing short circuit and electric leakage for PCB, battery cells and plastic housings.
Equipped with Class 10,000 dry clean room, certified ISO9001 since 2011, IATF16949, ISO14001 & ISO45001 obtained in 2025. Our technical team selects matched materials and processes according to working voltage, temperature and flame retardant grade to balance insulation performance and cost.
Our products serve mobile terminals, 3C electronics, new energy lithium batteries, automotive electronics and industrial power supplies. Widely used for cell insulation separators, PCB insulating gaskets, vehicle electronic insulation layers, charger flame retardant films and power module liners to avoid leakage and fire risks under high voltage.
Original insulating materials from global brands with certified insulation & flame resistance
Genuine substrates with test reports of voltage resistance, UL flame retardant and RoHS, high dielectric strength meeting strict safety standards of lithium battery and automotive high-voltage systems.
Cleanroom precision die-cutting for ultra-thin, multi-layer & irregular insulation parts
Micron-level tolerance cutting in dust-free workshop. 0.02mm ultra-thin films, multi-layer composites and hole-positioned special gaskets are available, burr-free to protect delicate circuits.
One-stop integrated service of material supply & die-cutting to cut your total cost
Integrated insulation material distribution, adhesive lamination, precision converting and solution design for all high-voltage industries. Flexible sampling & mass production with technical optimization to lower your procurement expenses.
About Xinzhi
Xiamen Xinzhi Optoelectronic Technology Co.,Ltd. was established in 2007. It is an enterprise specializing in the agency and distribution of adhesive materials, a solutions provider focused on precision die-cutting processing and customized bonding services, and a company founded by professionals with over 30 years of industry experience.
Vertical and horizontal combustion testing machine
Constant Temperature and Humidity Machine
It is a China regional agent for international brands such as 3M, LG Chem, Dow Chemical, Saint-Gobain, BASF, and Avery Dennison. It serves multiple industries including personal mobile terminals, 3C, new energy lithium batteries, automotive, smart home, and general industrial sectors, providing various specialty tapes, adhesives, OCA, insulating materials, cushioning materials, and EMI materials.
5040 full-automatic anime
3020 anime
Tension Tester
Tension Tester
It can also provide customers with customized precision die-cut parts. Based on drawings and requirements, customized products are delivered. Equipped with a Class 1000 cleanroom and professional die-cutting and coating equipment, it offers a wide range of cost-effective tapes and swiftly produces precision die-cut components for various industrial applications, including tapes, foam, cushioning, insulation, EMI shielding, conductive materials, nameplates, labels, and protective films.
It obtained ISO9001 certification in 2011 and IATF169494500114001 certification in 2025, with complete and independent testing instruments and equipment. A specialized team optimizes technology and costs, fully ensuring the provision of high-quality products to customers.
16949 Certificate
14001 Environmental Management Certificate
45001 Occupational Health Certificate
ISO9001 Quality Management Certificate
Our advantage
Brand Material Agency
Authorized by well-known domestic and foreign brands such as LG, 3M, Dow Chemical, BASF, Avery Dennison, Saint Gobain, etc., we provide OCA, special tape, glue, foam, surface treatment agents and other materials, and offer rational material selection suggestions
Precision Die-Cutting Processing
Customized adhesive components, explosion-proof films, heat-conducting graphite sheets and other products to meet the high-precision component needs of multiple industries
Solution output
Provide bonding solutions and process improvement services, with a professional team optimizing technology and costs to ensure product quality.
Cost Reduction and Efficiency Improvement
Our raw material sales and manufacturing engineering team, with rich industry experience and deep industry background, continuously researches and explores to provide automation technology improvements, material savings, and assembly improvements for our production. We recommend materials with more cost advantages to customers, thereby providing them with high-quality products with more cost optimization
FAQ
Q: Are your insulating die-cut materials genuine original 3M materials? Can you provide insulation and flame retardant certificates?
A: We hold official distribution authorization for major brands. All PI, mylar, fiberglass and mica insulation materials are original supply. Voltage resistance, UL flame retardant, RoHS and MSDS documents are available per batch for factory audit, fully compliant with high-voltage safety standards of EV and lithium battery.
Q: Can you produce ultra-thin, multi-layer, hole-shaped irregular insulation gaskets? What is dimensional tolerance?
A: Custom 0.02mm ultra-thin films, multi-layer composites and positioned hole forming are supported. Produced in dry clean room, standard tolerance ±0.1mm, precision micro parts up to ±0.05mm, dust-free to prevent circuit short circuit.
Q: Which industries do your insulating die-cut parts cover? Do you have certificates for automotive & lithium battery orders?
A: We serve mobile terminals, 3C electronics, new energy lithium batteries, automotive electronics and industrial power supplies for cell separation and circuit protection. ISO9001, IATF16949, ISO14001 and ISO45001 certifications are available to pass strict supplier audits.
Q: Can you customize high-voltage, high-temperature, flame-retardant and self-adhesive insulating die-cut parts?A: Functional customization is available: high breakdown resistant sheets, high-temperature mica sheets, flame retardant mylar for battery safety. Compatible with residue-free & heat-resistant adhesive lamination, stable insulation performance without warping after long-term use.
Q: Will multi-layer insulating composites delaminate or shed powder? How do you control quality?
A: Constant temperature cleanroom lamination line avoids delamination, powder shedding and glue overflow. 100% visual & dimensional inspection before shipment to reduce defective rate and eliminate electric leakage risks for end products.
Q: Can I get insulating die-cut samples? Is sampling fee required?
A: Standard samples are free, customers only bear courier cost. Complex multi-layer automotive high-voltage samples need a small sampling charge, which can be fully deducted from mass orders. Samples delivered within 24–48 hours after drawings or samples received.
Q: What is your MOQ? What about production capacity?
A: No strict MOQ for R&D trial orders. MOQ for regular insulation sheets: 500pcs; large lithium & automotive composite parts: 1000pcs. Multiple automatic die-cut lines with daily output up to millions of pieces, large raw material stock ensures stable supply during peak seasons.
Q: What is standard lead time? Can rush orders be prioritized?
A: Samples within 2 days; small batches 3–5 days; bulk standard orders 5–7 days; complex IATF high-voltage auto insulation parts 7–10 days. Rush production arrangement is available for new product development and urgent restock.
Q: How do you pack finished insulation parts? Can neutral export or custom branded packaging be offered?
A: Inner release film + anti-static PE bags to protect insulation surface, outer thick moisture-proof cartons. Neutral blank export packages, custom color boxes and vacuum moisture-proof packaging are optional for sea & land transport to avoid dampness and deformation.
Q: What payment methods do you accept? Is credit term available for long-term partners?
A: Domestic customers: corporate bank transfer, Alipay corporate, WeChat corporate account. Overseas customers: T/T, L/C. New clients pay 30% deposit before production, full balance before shipment. Flexible credit terms can be negotiated for stable long-term cooperation.
