SIST EN 60454-3-7:2002

Overview

EN 60454-3-7:1998 (adopted as a CLC/EN sheet) specifies requirements for pressure-sensitive adhesive tapes made from polyimide film for electrical purposes. The standard covers four tape types with nominal thicknesses from 0.020 mm to 0.055 mm, and thermal performance indexed between 155 °C and 180 °C, using acrylic crosslinked and silicone thermosetting adhesives. EN 60454-3-7 is part of the broader EN/IEC 60454 series for pressure-sensitive tapes used in electrical and electronic applications.

Key topics and requirements

The standard focuses on material- and performance-related specifications for polyimide film tapes. Key topics include:

• Material definition: polyimide film as the carrier for pressure-sensitive adhesive tapes.
• Tape types: specification of four defined tape types (by construction/Intended use as per the sheet).
• Thickness range: nominal thicknesses from 0.020 mm to 0.055 mm with tolerances.
• Thermal classification: thermal indices in the 155–180 °C range indicating high-temperature performance.
• Adhesive systems: approved adhesive families include acrylic crosslinked and silicone thermosetting adhesives suited for elevated temperatures.
• Quality and marking: requirements for identification, batch marking, and conformity statements (typical for material-specification sheets).
• Test and performance criteria: reference to tests and acceptance criteria for properties relevant to electrical insulation and thermal endurance (as defined in the EN/IEC 60454 framework).

Note: The standard sheet provides material-specific requirements within the EN 60454 series rather than detailed procedural methods beyond the scope of this summary.

Applications

Polyimide film tapes specified in EN 60454-3-7 are used where high-temperature electrical performance and stable adhesive behaviour are required. Typical applications:

• High-temperature electrical insulation and phase separation in transformers, motors, and coils.
• Masking and protection during high-temperature processes (e.g., wave soldering or reflow in PCB assembly).
• Wire harness insulation and securement in aerospace and automotive systems where thermal resistance is critical.
• General-purpose electrical masking and protection in electronics manufacturing and repair.

Keywords: EN 60454-3-7, polyimide film tapes, pressure-sensitive adhesive tapes, electrical insulation tape, thermal index, acrylic crosslinked adhesive, silicone thermosetting adhesive.

Who uses this standard

• Tape manufacturers and formulators developing polyimide adhesive tapes.
• Electrical and electronic product designers specifying insulation materials.
• Procurement and quality engineers ensuring material conformity.
• Test laboratories and certification bodies assessing compliance to EN/IEC 60454 series requirements.

Related standards

• EN/IEC 60454 series (general and other material-specific sheets) for pressure-sensitive tapes used in electrical applications.