3M 425 (1000-mm-Roll)

Additional Product Information

Overview

3M 425 is a vinyl electrical tape engineered for aerospace applications requiring reliable insulation, abrasion resistance, and conformability. Its wide 1000 mm (39.37 in) format supports large-area wrapping, harness trunking, and protective masking. Aerospace engineers use it to wrap high-voltage cabling, secure wiring bundles, and mark zones within avionics bays, ensuring long-term reliability under vibration and temperature variation.

Key Technical Specs for 3M 425

• Type: Vinyl electrical insulation tape
• Size/Volume: 1000 mm (39.37 in) roll width
• Color: Typically aluminum/silver
• Viscosity/Consistency: Pressure-sensitive adhesive tape
• Cure/Working Time: Immediate adhesion
• Tensile/Peel Strength: Manufacturer specified
• Shore Hardness: Not applicable
• Service Temperature: Aerospace operational range
• Typical Uses: Electrical insulation, harness wrapping
• Shelf Life: Manufacturer specified

Approvals & Specifications

• MIL-I-24391
• AS 1156

Typical Aircraft MRO / AOG Applications

• High-voltage cable wrapping
• Harness trunking protection
• Avionics bay marking and insulation

Compatibility & Safety Notes

• Ensure clean, dry substrate before application
• Not intended as structural bonding material

Packaging & Procurement

• Wide-format 1000 mm roll
• Suitable for large harness assemblies

Why 3M 425 is Chosen for AOG / MRO

• Reliable insulation performance
• Excellent conformability
• Performs under vibration and ageing

Practical Suggestions for Your Team (AOG Mindset)

• Apply with uniform tension for optimal adhesion
• Store in controlled temperature conditions

Manufacture / Aviation Spec Codes

• Manufacturer: 3M
• Product ID: 425
• Spec Codes: MIL-I-24391, AS 1156

Alternative Names & Descriptions

• 3M Vinyl Electrical Tape
• Aerospace Harness Insulation Tape
• Aircraft Wiring Wrap Tape
• Wide-Format Electrical Protection Tape