3M Aluminum Foil Tape 425 Silver (various sizes)

3M™ 425 is a high-quality aluminum tape designed for demanding indoor and outdoor applications, offering excellent chemical, thermal, and mechanical resistance. Thanks to its aluminum-based structure and strong acrylic adhesive, the tape effectively reflects and dissipates heat, protecting surfaces and increasing the efficiency of heating and cooling systems. It also features very low water vapor permeability, making it an ideal solution for sealing and patching. Resistance to UV radiation, flames, moisture, and aging ensures that 3M™ 425 tape maintains its properties even in harsh industrial environments.

Technical Specification

• Width: 19 mm, 25 mm, 38 mm, 50 mm,
• Length: 55 m
• Thickness: 0.12 mm
• Color: Silver
• Type: Aluminum tape with acrylic adhesive
• Operating temperature range: from –53°C to 148°C
• Resistance: Chemical, UV, moisture, fire, and aging

Application

• Heat reflection and dissipation in heating and cooling systems
• Creation of thermal and light shields
• Surface protection during chemical operations and milling
• Sealing and patching in harsh environmental conditions
• Improved lighting efficiency by light reflection
• Assembly and service work in the aerospace, automotive, electronics, and construction industries

Benefits and Properties

✅ High chemical resistance – ideal for painting, milling, and surface protection operations
✅ Reflects and dissipates heat – increases thermal efficiency and protects sensitive materials
✅ Low water vapor permeability – ensures sealing and durability of connections
✅ Flexibility and conformability – adheres to curved and irregular surfaces
✅ Clean removal – leaves no residue even after a long time and in difficult conditions
✅ Durability – resistant to fire, moisture, UV radiation, and aging

Application Tips

Before application, ensure the surface is clean, dry, and free of grease. The tape should be pressed firmly to ensure full contact with the substrate. Thanks to its high flexibility and adhesion, it can be used on both flat and irregular surfaces, maintaining sealing and durability even in extreme conditions.