This demo shows how 3M™ Aluminum Foil Tape 425 helps shield surfaces from radiant heat. Built for engineering, manufacturing, maintenance, and design teams working on heat shielding, thermal protection, sealing, holding, patching, and masking applications. Request a sample: https://s.3m.com/qtsfn6os 3M™ Aluminum Foil Tape 425 combines a dead soft aluminum foil backing with a transparent acrylic adhesive to help reflect heat and light while protecting surfaces in demanding environments. Demo summary • A heat lamp is used to expose plastic boards to radiant heat from a distance of 5 cm. • The demo compares an unprotected plastic board with boards covered using 3M™ Vinyl Tape 471, 3M™ Glass Cloth Tape 363, and 3M™ Aluminum Foil Tape 425. • Each board is exposed to heat for 1 minute before the measured temperature and visible surface condition are compared. Product highlights • Aluminum backing provides excellent reflection of both heat and light. • High thermal conductivity helps improve heating or cooling efficiency. • High heat reflectivity and flame resistance help protect temperature-sensitive materials against heat damage, flame damage, and hot spots. • Seals and protects against moisture, solvents, and dust. • Resists outdoor weathering and UV degradation for long-term performance. • Operating temperature range: -65°F to 300°F, or -54°C to 149°C. Observed results • In this demo, the unprotected plastic board reaches 105°C after 1 minute and deforms from radiant heat exposure. • With 3M™ Vinyl Tape 471 applied, the measured temperature is 78°C. • With 3M™ Glass Cloth Tape 363 applied, the measured temperature is 82.5°C. • With 3M™ Aluminum Foil Tape 425 applied, the measured temperature is much lower at 31.2°C, and the board is protected from visible thermal damage in the demonstrated setup. Why it matters • Heat shielding can help protect delicate parts and temperature-sensitive surfaces from radiant heat exposure. • Heat reflection and heat dissipation support applications where thermal management, surface protection, or hot spot reduction is required. • Useful for appliances, aerospace, automotive, construction, MRO, electronics, commercial transport, and marine applications. • Relevant for refrigerator and freezer coil attachment, reflective lighting layers, sealing out air and moisture, moisture barriers in white goods, foil splicing, patching, holding, and indoor or outdoor sealing applications. • A conformable foil construction helps the tape adapt to surfaces while supporting long-term performance in demanding environments. Chapters 00:00 Introduction 00:16 Baseline test 00:58 Testing with 3M™ Vinyl Tape 471 01:30 Testing with 3M™ Glass Cloth Tape 363 02:01 Testing with 3M™ Aluminum Foil Tape 425 02:32 Conclusion Resources & next steps • Request a sample: https://s.3m.com/qtsfn6os • Product details: https://s.3m.com/che5e3zv • Find the right engineered industrial tape: https://s.3m.com/m9ja2diz #3MEngineeredIndustrialTapes #EngineeredForEngineers

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