Import 3021 Phenolic Laminate Paper-Base Sheet — Buy in wholesale FOB from Supplier in China

The 3021 Phenolic Laminate Paper-Base Sheet from Ztelec Group, based in Zhengzhou, Henan Province, is a thermoset composite manufactured by impregnating paper with phenolic resin and curing under heat and pressure. This process yields a rigid, dense board with elevated mechanical strength and reliable electrical insulation performance. The material is commonly known as bakelite or phenolic board in trade terminology. Standard dimensions and thickness tolerances for this grade typically follow IEC 60893 or comparable national standards for industrial laminates, though buyers should confirm the specific standard to which Ztelec Group certifies production.

The base material consists of phenolic resin and bleached or unbleached kraft paper, with resin content determining the final balance between machinability and electrical resistance. The 3021 designation indicates a paper-base phenolic laminate with specific mechanical and electrical properties under standard classification systems. Typical density for this product class falls between 1.30 and 1.45 g/cm3, with water absorption rates varying by thickness and pressing cycle. Colour options usually include orange-brown, light brown, or black, depending on resin formulation and pigment addition. The material maintains dimensional stability in dry environments and resists weak acids, alkalis, and hydrocarbon solvents common in electrical applications.

Primary applications span the electrical engineering sector, specifically as insulation components in oil-immersed transformers, electric motors, switchgear, and control panels. Fabricators machine the sheet into bushings, washers, spacers, terminal blocks, and structural insulation parts. The product's compatibility with transformer oil makes it particularly suited for power distribution equipment. Typical buyers include transformer manufacturers, motor rewind shops, electrical OEMs, and industrial maintenance contractors. Trade terms, minimum order quantities, and lead times from Ztelec Group should be confirmed directly, as the listing does not specify these details.

Ztelec Group operates from Zhengzhou, the capital of Henan Province in central China, with a registered address at No. 279 Third West Ring Road. The company holds a harbor trust tier on the platform, indicating a baseline verification status. The response rate is recorded at 0.00 percent with zero average response hours, which suggests the supplier may not actively monitor inquiries through this channel or has not engaged recently. Buyers should consider alternative contact methods, such as direct email or telephone, to ensure timely communication before committing to orders.

The supplier's profile and listing focus specifically on phenolic laminated products, particularly paper-base and potentially cotton-base laminates for electrical insulation. No manufacturing scale, year of establishment, employee count, or revenue figures are disclosed in the available data. The company does not list specific certifications, export experience, or named clients. This absence of detail means buyers must conduct independent due diligence, requesting business registration documents, quality management system certificates, and reference customers directly from Ztelec Group before proceeding with substantial orders.