3M Aluminum Foil Tape 439
Overview 3M™ Aluminum Foil Tape 439 is a linered aluminum foil tape featuring a 2 mil (0.05 mm) dead-soft aluminum foil backing , a transparent acrylic pressure-sensitive adhesive , and a silicone-release kraft paper liner . It is designed for permanent sealing, holding, splicing, and masking applic
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Products Description
3M™ Aluminum Foil Tape 439 is a linered aluminum foil tape featuring a 2 mil (0.05 mm) dead-soft aluminum foil backing , a transparent acrylic pressure-sensitive adhesive , and a silicone-release kraft paper liner .
Products Features
- Temperature Resistance: -54°C (-65°F)
- Peel Strength: 4.5 N/cm (41 oz/in) at 23°C
- Tensile Strength: 31.5 N/cm (18 lb/in)
- Elongation at Break: 3%
- Backing Thickness: 0.05 mm (1.9 mil)
- Backing / Carrier: Dead-soft aluminum foil
Products Construction
Backing: Dead-soft aluminum foil; Adhesive: Transparent acrylic.
Physical Properties
| Technical Parameter | Specification |
|---|---|
| Product type | General Purpose Aluminum Foil Tape |
| Backing material | Dead-soft aluminum foil |
| Adhesive type | Transparent acrylic |
| Color | Shiny silver |
| Backing thickness | 0.05 mm (1.9 mil) |
| Total tape thickness | 0.08 mm (3.1 mil) |
| Liner material | Tan kraft paper with silicone release |
| Liner thickness | 0.14 mm (5.6 mil) |
| 180° peel adhesion to steel | 4.5 N/cm (41 oz/in) at 23°C |
| Tensile strength | 31.5 N/cm (18 lb/in) |
| Elongation at break | 3% |
| Water vapor transmission | 0.77 g/m²/24 h |
| Minimum long-term temperature resistance | -54°C (-65°F) |
| Maximum long-term temperature resistance | 149°C (300°F) |
| Recommended application temperature | Above 0°C (32°F) |
| Flame classification | UL 723, Class L |
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].