3M 8997 Econom Masking Tape Polyimide 30μm amber

The 3M™ 8997 Econom is a high-performance, amber-colored polyimide masking tape designed specifically for demanding high-temperature applications. It features a thin yet durable 30μm polyimide film backing paired with a high-tack silicone adhesive, ensuring dimensional stability and clean removal in extreme environments.

Key Technical Specifications

• Backing Material: Polyimide (Kapton-equivalent)
• Thickness: 30μm
• Adhesive Type: Silicone (Pressure Sensitive)
• Color: Transparent Amber
• Temperature Range: Rated for continuous use up to 260°C (500°F) for short durations.
• Dielectric Strength: High electrical insulation properties inherent to the polyimide base.

Performance Features

• High Thermal Stability: Maintains physical properties and prevents shrinkage or curling during high-heat processes like powder coating or wave soldering.
• Chemical Resistance: The polyimide base provides excellent resistance to solvents, oils, and acids common in industrial manufacturing.
• Clean Removal: The silicone adhesive is formulated to leave zero residue on metal, glass, or plastic surfaces, even after prolonged exposure to heat.
• Thin Profile: The 30μm base allows for sharp, precise masking lines and conformability around irregular surfaces and contours.

Primary Applications

• Electronics Manufacturing: Masking gold fingers and sensitive components during wave soldering or SMT processes.
• Powder Coating: Protecting critical areas (threads, electrical contact points) during high-temperature curing cycles.
• Aerospace & Automotive: Thermal insulation and masking for parts subjected to extreme heat environments.
• Electrical Insulation: Wrapping coils, transformers, and capacitors where heat and dielectric strength are required.