Import Copper Clad Laminate, Fr-4, Xpc, Cem, 22f — Buy in Bulk from Supplier in China

Jiangsu Sunyuan Aerospace Materials Co., Ltd. supplies copper clad laminates in FR-4, XPC, CEM and 22F grades, materials engineered for printed circuit board fabrication. The FR-4 variant combines woven glass fabric with epoxy resin, offering thermal stability up to 130 °C and dielectric strength exceeding 500 V/mil, while the XPC and CEM grades use paper-based cores for cost-effective single-sided or double-sided boards. 22F refers to the flame-retardant designation meeting UL 94 V-0 standards.

FR-4 laminates typically feature copper foil thicknesses of 18 µm, 35 µm or 70 µm, with standard board thicknesses from 0.4 mm to 3.2 mm and tolerance of ±0.05 mm. XPC and CEM variants often use thinner copper (18 µm or 35 µm) and lower glass transition temperatures, making them suitable for consumer electronics with less demanding thermal profiles. All grades are manufactured with resin systems that resist delamination and maintain dimensional stability during soldering and reflow processes.

These laminates serve industries from telecommunications to aerospace, where reliability under thermal and electrical stress is critical. PCB manufacturers source FR-4 for multilayer boards, XPC for single-sided applications like LED lighting, and CEM for high-volume consumer devices. Buyers should confirm copper thickness, dielectric constant and loss tangent values for their specific frequency ranges, as well as packaging options such as vacuum-sealed pallets or moisture-barrier bags for long-term storage.

Jiangsu Sunyuan Aerospace Materials Co., Ltd. is based in Jiangyin, Wuxi, at No.73, Qingtong Road, Qingyang, and operates as an imported-tier supplier. The company’s profile indicates a focus on aerospace-grade materials, with copper clad laminates as a core product line. Its harbor trust tier suggests verified operational presence, though the listed response rate is currently 0.00, which may reflect recent activity or data updates.

The supplier does not state certifications, production capacity, or historical performance in its profile, so buyers should request documentation for ISO, UL or other relevant standards directly. No details are provided on company size, founding year, or client base, so due diligence should include requests for references or past project case studies in electronics manufacturing. The address confirms a physical location in a known industrial region for materials production.