Lead Foil Tapes
Electrically Conductive
“Thieving” action eliminates metal plating edge build-up.
Acid Resistant
Broad applicability for etching, milling and plating operations.
Malleable
High conformability: can be easily worked with burnishing tools.
High Density
Ideal weighting or balancing medium.
X-ray Opacity
Help protect components from x-rays. Great marker or locator for x-ray inspection operations.
Damping Foils
Noise Reduction
Unique polymer converts vibration to negligible heat.
Fatigue Reduction
Reduced vibration helps prolong product life.
Vibration Damping
Damp resonant vibration for noise control.
3M™ Metal Foil Tapes
Key Customer Markets
- Aerospace
- Metal Finishing
- Appliance
- Automotive
Aluminum Foil Tapes
Moisture and Chemical Resistant
Help seal and protect many sensitive assemblies and surfaces.
Thermally Conductive
Help maximize efficiency of heating or cooling by increasing transmission over broader area.
Heat and Light Reflective
Help protect plastic components from heat damage. Help improve visibility by magnifying light sources.
Flame Resistant
Help protect parts from flame damage.
Outdoor Weatherable
Resist U.V. degradation, ensures long lasting performance.
Aluminum Foil/Reinforced Tapes
Highly Conformable and Non-rigid
Ideal for spiral wrap heat and flame protection of cables, hoses and harnesses. Wrapped flexible hoses retain flexibility.
High Strength
Good wearability, high tear and puncture resistance.
Flame Resistant
Help protect parts from flame and heat damage.
Product Information
| Product/ Color |
Tape Structure (backing adhesive) |
Backing Thickness mils (mm) |
Total Thickness mils (mm) (N/100 mm) |
Adhesion to Steel oz./in. (N/100 mm) |
Tensile Strength lbs./in. (N/100 mm) |
Elongation at Break % |
Temperature Range °F (°C) |
Comments |
|---|---|---|---|---|---|---|---|---|
| ASTM Test Method: | D-3652 | D-3652 | D-3330 | D-3759 | D-3759 | |||
| PREMIUM PERFORMANCE ALUMINUM FOIL TAPES | ||||||||
| 425 | Aluminum/Acrylic | 2.8 (0.07) | 4.6 (0.12) | 47 (51) | 30 (525) | 8 | -65 to 300°F (-54 to 149°C) | Most versatile Aluminum tape. 1, 2, 4, 7 |
| 427 | Aluminum/Acrylic | 2.8 (0.07) | 4.6 (0.12) | 50 (55) | 30 (525) | 8 | -65 to 300°F (-54 to 149°C) | Linered version 425 Tape. 2, 4, 7 |
| 431 | Aluminum/Acrylic | 1.9 (0.05) | 3.1 (0.08) | 41 (45) | 19 (338) | 5 | -65 to 300°F (-54 to 149°C) | Conformable Aluminum tape. 4 |
| 433 | Aluminum/Silicone | 2.0 (0.05) | 3.6 (0.09) | 40 (43.8) | 20 (350) | 3.5 | -65 to 600°F (-54 to 316°C) | MIL-T-47014. 4 |
| 433L | Aluminum/Silicone | 2.0 (0.05) | 3.6 (0.09) | 38 (42) | 20 (350) | 3.5 | -65 to 600°F (-54 to 316°C) | Linered 433 Tape.4 |
| 438 | Aluminum/Acrylic | 5.0 (0.13) | 7.2 (0.18) | 43 (47) | 59 (1033) | 10 | -65 to 300°F (-54 to 149°C) | Thickest Aluminum tape.4 |
| 439 | Aluminum/Acrylic | 1.9 (0.05) | 3.1 (0.08) | 41 (45) | 18 (315) | 3 | -65 to 300°F (-54 to 149°C) | Linered version 431 Tape.4 |
| GENERAL PURPOSE ALUMINUM FOIL TAPES | ||||||||
| 1449 | Aluminum/Acrylic | 1.4 (0.04) | 2.6 (0.07) | — | 19 (333) | 11 | -25 to 250°F (-32 to 121°C) | Thinnest aluminum tape for added comformability. |
| 1450 | Aluminum/Acrylic | 1.9 (0.05) | 3.1 (0.08) | — | 19 (333) | 6 | -40 to 200°F (-40 to 93°C) | High initial tack on low energy surfaces. |
| ALUMINUM FOIL REINFORCED TAPES | ||||||||
| 363 | Aluminum/Glass Cloth/Silicone | 3.4 (0.09) | 7.3 (0.19) | 67 (73) | 135 (2364) | 7 | -65 to 600°F (-54 to 316°C) | Highest temp. metal tape.4 |
| LEAD FOIL TAPES | ||||||||
| 420 | Lead/Rubber | 4.7 (0.12) | 6.8 (0.17) | 45 (49) | 20 (350) | 12 | -60 to 225°F (-54 to 106°C) | Linered plating tape.5 |
| 421 | Lead/Rubber | 4.0 (0.10) | 6.3 (0.16) | 31 (34) | 15 (263) | 14 | -60 to 225°F (-54 to 106°C) | Unlinered plating tape. |
| DAMPING FOILS | ||||||||
| 434 | Aluminum/VEP 6 | 5.5 (0.14) | 7.5 (0.19) | 65 (72) | 53 (928) | 12 | -76 to 68°F (-60 to 20°C)3 | Low temp. vibration damping.4 |
| 435 | Aluminum/VEP 6 | 8.0 (0.20) | 13.5 (0.34) | 65 (72) | 84 (1470) | 12 | -76 to 68°F (-60 to 20°C)3 | Low temp. vibration damping.4 |
| 436 | Aluminum/VEP 6 | 12.0 (0.31) | 17.5 (0.45) | 65 (72) | 126 (2205) | 12 | -76 to 68°F (-60 to 20°C)3 | Low temp. vibration damping.4 |
| 2552 | Aluminum/VEP 6 | 10.0 (0.25) | 15 (0.38) | 50 (55) | 80 (1400) | 15 | 40 to 140°F (5 to 60°C)3 | General purpose vibration damping.4 |
| 4014/Silver | Aluminum-Urethane/Acrylic | 0.250 (6.35) | 13 (208)7 | — | — | — | -94 to 86°F (-70 to 30°C)5 | Foil/Foam Sheet laminate.3 |
1 Can be qualified to L-T-80B, MIL-T-23397B II 2 Meets U.L. 723, Class L File R 7311 3 Optimum damping temperature 4 F.A.R. 25.853 (a) 5 H-T-29A 6 Viscoelastic polymer 7Meets U.L. 764c
Note: This technical information and data should be considered representative or typical only and should not be used for specification purposes.