3M Lead Foil Tape 421
Overview 3M™ Lead Foil Tape 421 is a highly conformable lead foil tape with a rubber adhesive , designed for industrial applications requiring electrical and thermal conductivity, flexible masking, moisture protection, radiation barriers and resistance to demanding environmental conditions. The tape
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Products Description
3M™ Lead Foil Tape 421 is a highly conformable lead foil tape with a rubber adhesive , designed for industrial applications requiring electrical and thermal conductivity, flexible masking, moisture protection, radiation barriers and resistance to demanding environmental conditions.
Products Features
- Temperature Resistance: 107°C / 225°F
- Peel Strength: 4.9 N/cm at 23°C
- Tensile Strength: 26.3 N/cm
- Elongation at Break: 14%
- Backing Thickness: 0.10 mm / 4 mil
- Backing / Carrier: Lead foil
Products Construction
Backing: Lead foil; Adhesive: Rubber.
Physical Properties
| Technical Parameter | Specification |
|---|---|
| Product type | Lead foil tape |
| Backing | Lead foil |
| Adhesive type | Rubber |
| Adhesive color | Green |
| Tape color | Dark silver |
| Backing thickness | 0.10 mm / 4 mil |
| Total tape thickness | 0.17 mm / 6.6 mil |
| 180° peel adhesion to steel | 4.9 N/cm at 23°C |
| Tensile strength | 26.3 N/cm |
| Elongation at break | 14% |
| Long-term temperature resistance | 107°C / 225°F |
| Minimum long-term temperature resistance | -51°C / -60°F |
| Water vapor transmission | 1.55 g/m²/24 h |
| Standard roll length | 33 m / 36 yd |
| Electrical conductivity | Yes |
| Thermal conductivity | Yes |
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 107°C / 225°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].
