3M 438 Heavy Duty Aluminum Foil Tape
Overview 3M™ Heavy Duty Aluminum Foil Tape 438 is a high-performance aluminum foil tape designed for applications where a heavier-weight foil backing is required. It combines a 0.13 mm (5 mil) dead-soft aluminum foil backing with a transparent acrylic pressure-sensitive adhesive . Compared with thin
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Products Description
3M™ Heavy Duty Aluminum Foil Tape 438 is a high-performance aluminum foil tape designed for applications where a heavier-weight foil backing is required. It combines a 0.13 mm (5 mil) dead-soft aluminum foil backing with a transparent acrylic pressure-sensitive adhesive .
Products Features
- Temperature Resistance: -54°C (-65°F)
- Peel Strength: 4.7 N/cm (43 oz/in) at 23°C
- Tensile Strength: 103 N/cm (59 lb/in)
- Elongation at Break: 10%
- Backing Thickness: 0.13 mm (5 mil)
- Backing / Carrier: Aluminum foil
Products Construction
Backing: Aluminum foil; Adhesive: Acrylic.
Physical Properties
| Technical Parameter | Specification |
|---|---|
| Product type | General Purpose Aluminum Foil Tape |
| Backing material | Aluminum foil |
| Adhesive type | Acrylic |
| Color | Shiny silver |
| Backing thickness | 0.13 mm (5 mil) |
| Total tape thickness | 0.18 mm (7.2 mil) |
| 180° peel adhesion to steel | 4.7 N/cm (43 oz/in) at 23°C |
| Tensile strength | 103 N/cm (59 lb/in) |
| Elongation at break | 10% |
| Water vapor transmission | 0.77 g/m²/24 h |
| Minimum long-term temperature resistance | -54°C (-65°F) |
| Long-term temperature resistance | 149°C (300°F) |
| UL classification | UL 746C / UL 723 Class L |
| Aerospace flammability | FAR 25.853(a), applicable requirements |
| Standard roll length | 55 m (60 yd) |
Values shown are from the product data sheet. Confirm suitability for your specific application before ordering.
Products Application
This tape is used in industrial assembly and conversion processes. Tell us the substrates, the working conditions and the required size, and our team will confirm the right model for your application.
FAQ
Can this tape be supplied die-cut or in custom widths?
Our die-cutting service covers custom shapes and widths. Send your drawing or the required width and length, and we will confirm availability for this model.
What temperature can it withstand?
According to the product data, the value is -54°C (-65°F). Confirm your process temperature with our team before ordering.
How do I request a sample or quotation?
Send the model, required size, color, quantity and your application to [email protected], or use the inquiry form on this page.
Request a Quote
To help us prepare a quotation, please include the model, required width and length, color, quantity and your application. You can also e-mail [email protected].