self adhesive Fish Paper/self adhesive Barley Paper

Fish paper, also known as fibroid fish paper or fish paper electrical insulation, is a high-strength electrical insulating paper made primarily from wood pulp fiber or a cotton fiber blend through a refined pulping and pressing process. It is also referred to as fish paper insulation or electrical fish paper, and is commonly recognized for its characteristic green or yellow color — green types are called fish paper sheets (also known as 青壳纸), while the yellow variant is known as yellow shell paper.

This material is widely used across electrical and electronic industries for its excellent electrical insulation, mechanical toughness, flexibility, and resistance to aging, oil, and moisture. The surface of fish paper sheets is smooth and uniform, ensuring consistent dielectric performance and durability under various operating conditions.

Unlike regular paper, fish paper electrical insulation has a high dielectric strength and withstands electrical voltages effectively, preventing electric shocks or short circuits in devices. Its strong mechanical integrity and adaptability to processes like die-cutting, laminating, and punching make it a preferred material for insulation gaskets, spacers, and support layers in motors, transformers, and electronic components.

Fish paper insulation is available in various thicknesses and sizes to suit diverse electrical and mechanical applications.

• Thickness Range: 0.11 mm – 0.5 mm (standard)

• Common Thickness: 0.11 / 0.12 / 0.15 / 0.20 / 0.25 / 0.30 / 0.40 / 0.50 mm

• Sheet Size: 1000 × 2000 mm, 1200 × 2400 mm, or customized sizes

• Color Options: Green (standard fish paper sheets) and Yellow (yellow shell paper)

• Form Available: Rolls, sheets, and adhesive fish paper laminated versions

• Processing Options: Cutting, slitting, punching, and custom die-cut shapes

These options ensure that fish paper electrical insulation can meet specific requirements for different electrical devices, from high-voltage insulation layers to precision electronic gaskets.

1. Excellent Electrical Insulation – Fish paper insulation has high dielectric strength, preventing electrical leakage and ensuring safe operation of devices.

2. Durable Mechanical Strength – Offers strong tensile and tear resistance while maintaining flexibility, making it suitable for complex mechanical assemblies.

3. Heat and Aging Resistance – Performs reliably under thermal stress, maintaining stable insulation properties over time.

4. Moisture and Oil Resistance – Electrical fish paper resists water and oil penetration, suitable for humid or oily environments.

5. Smooth and Flexible Surface – Ensures uniform layering and excellent adhesion with varnishes, films, and other insulating materials.

6. Customizable and Easy to Process – Can be die-cut, laminated, or coated to form adhesive fish paper for enhanced performance in assembly operations.

7. Eco-Friendly Material – Made from natural cellulose fibers, fibroid fish paper is safe, non-toxic, and recyclable.

8. Thermal Endurance – Suitable for use in electrical equipment rated up to Class B (130°C), ensuring reliable insulation under elevated temperatures.

Because of its balance between flexibility, mechanical strength, and insulation, fish paper electrical insulation has become one of the most trusted non-conductive materials in the motor and transformer industries.

1. Motors and Transformers – Used as slot insulation, phase insulation, and gasket material in motors, transformers, and generators due to its high dielectric performance.

2. Electronic Devices – Serves as a fish paper insulation gasket between circuit components, battery cells (such as 18650 battery packs), and metal casings.

3. Electrical Equipment – Commonly applied in fans, lighting fixtures, power tools, and switchgear to prevent short circuits and provide electrical isolation.

4. Automotive & Industrial Machinery – Acts as spacer and sealing material between metal parts to reduce wear, vibration, and electrical conduction.

5. Communication and Computer Equipment – Used in connectors, display modules, and printed circuit assemblies to maintain insulation and stability.

6. Appliances and Home Devices – Integrated in transformers, chargers, and electric toys for protection and electrical fish paper insulation safety.

7. Precision Instruments and Sound Equipment – Improves electrical isolation and structural integrity in compact, sensitive components.

8. Adhesive Fish Paper Applications – Adhesive fish paper versions are widely used for quick assembly and insulation reinforcement in modern electronic manufacturing lines.

With its combination of high dielectric strength, mechanical reliability, and processing versatility, fish paper electrical insulation remains a key material in the production of electrical, electronic, and mechanical systems worldwide.