Coil Insulation Material

Model 7802-A is a thermoset phenolic molding material intended for coil bobbins and related insulating support components. It can be processed by injection molding or transfer molding.

Coil bobbins may contain slots, holes, thin walls, positioning features, and assembly structures. The material's flowability can therefore be matched with the bobbin dimensions, wall thickness, groove layout, hole positions, overall structure, and mold conditions.

The coil insulation material combines electrical insulation, heat resistance, mechanical performance, flame resistance, and dimensional stability. It can be considered for coil bobbins and related insulating parts used in electrical appliances and electrical equipment.

Customers should provide a technical drawing or a physical prototype before bulk production. Sample molding can be used to check slot formation, hole positions, overall dimensions, structural strength, and assembly performance.

The source consistently records a surface resistance of at least 10¹¹ Ω and a dielectric loss factor at 100 Hz of no more than 0.1.

The material reaches a UL94 V0 flammability rating. These properties provide a documented electrical and flame-performance basis for molded coil bobbins.

Final material approval should still consider the actual electrical function, bobbin structure, working temperature, mold, processing equipment, and assembly method.

The source contains different mechanical, thermal, shrinkage, and density records. These differences should be resolved before a final technical data sheet is issued.

The main description records a flexural strength of at least 80 MPa and a tensile stress at break of at least 45 MPa. It also records a notched Charpy impact strength of at least 1.5 kJ/m² and an unnotched Charpy impact strength of at least 5.5 kJ/m².

The product parameter table instead records a flexural strength of at least 130 MPa and a tensile stress at break of at least 70 MPa.

The main description states a heat deflection temperature under load, Ti 1.8, of at least 170°C. The parameter table states at least 200°C.

The main description gives a molding shrinkage range of 0.40% to 0.60% and density of 1.50 to 1.60. The product parameter table gives a shrinkage range of 0.30% to 0.50% and density of 1.55 to 1.65.

Both sets of values come from the supplied material and should remain visible until the final approved figures are confirmed.

Zhejiang Naso Synthesis Co., Ltd. focuses on phenolic molding compounds and related thermoset materials. Sales, technical, production, and quality personnel can participate in coil bobbin projects.

The company can develop samples according to drawings or physical prototypes. An automatic batching system and a DCS automated control system are used to manage production. A full inspection is completed before packaging, and third-party inspection can be accepted.

The minimum order quantity is 1,000 kg. Different colors or models may be combined within one minimum order quantity after discussion.

Standard production normally takes approximately 7 days. Customized products normally take about 20 days, while customized sample development normally takes approximately 30 days.

Export packaging can be arranged according to bobbin dimensions, quantity, stacking method, and transportation conditions. After delivery, technical or quality questions can receive a response within 12 hours. The coil insulation material page should be finalized only after the conflicting technical values have been approved.

Hot Tags: coil insulation material, China coil insulation material manufacturers, suppliers, factory, Bright Red Phenolic Molding Compound, Coil Insulation Material, Commutator Phenolic Plastic, Electrical Bobbin Phenolic Plastic, Purplish red Phenolic Molding Compound, Switchboard Semi Rigid Plastic Insulation