3M™ Heavy Duty Aluminum Foil Tape 438 is for indoor and outdoor applications. Our tape has clear acrylic adhesive and its 0.13 mm thickness provides durability and is designed to resist flame, moisture, weather, chemicals and ultraviolet (UV) degradation.
The thicker foil backing of 3M™ Heavy Duty Aluminum Foil Tape 438 is more efficient at dissipating heat than a thinner foil tape, especially in situations where there is concentrated heat in a small area. Our tape is resistant to flame, moisture, UV degradation, weathering and harsh chemicals.
| Adhesive Type | Acrylic | |||
| Back-Side Adhesive Thickness | 0.13 mm | |||
| Backing (Carrier) Thickness (Imperial) | 5 mil | |||
| Backing (Carrier) Thickness (Metric) | 0.13 mm | |||
| Backing Material | Aluminum Foil | |||
| Brands | 3M | |||
| Elongation at Break | 10% | |||
| Maximum Operating Temperature (Celsius) | 149 ℃ | |||
| Maximum Operating Temperature (Fahrenheit) | 300 ℉ | |||
| Minimum Operating Temperature (Celsius) | -54 ℃ | |||
| Minimum Operating Temperature (Fahrenheit) | -65 ℉ | |||
| Overall Length (Metric) | 54.8 m | |||
| Overall Width (Imperial) | 2 in | |||
| Overall Width (Metric) | 50.7 mm | |||
| Product Colour | Silver | |||
| Tensile Strength (Imperial) | 59.0 lb/in | |||
| Tensile Strength (metric) | 1033 N/100mm | |||
| Total Tape Thickness without Liner (Imperial) | 7.2 mil | |||
| Total Tape Thickness without Liner (metric) | 0.18 mm |