3M™ 05I138-95308 Dark Silver 421 Lead Foil 6.3 Mil Tape – 1″ x 36 Yard Roll
3M 421 by 3M is a professional-grade lead foil tape available in 1″ x 36 Yard Roll format. Engineered for demanding industrial, aerospace, and OEM applications, this tape delivers exceptional adhesion, conformability, and long-term durability across a wide range of substrates including X-Ray Shielding, Vibration Damping, EMI Shielding. Dark silver in color, it is trusted by engineers, maintenance professionals, and manufacturing specialists worldwide who require consistent, specification-grade performance in every application. The 1″ x 36 Yard Roll format is ideal for both production and maintenance use, offering convenient handling and precise application with minimal waste. Whether you are sealing, protecting, masking, or bundling critical surfaces, 3M 421 provides the reliability your application demands. Each roll is manufactured under strict quality control standards to ensure batch-to-batch consistency and compliance with applicable industry specifications. Suitable for aerospace, defense, automotive, HVAC, electronics, and general industrial applications where high-performance tape is critical.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 7010302197 |
| Brand | 3M |
| Product / Model Name | 3M 421 |
| Color | Dark Silver |
| Package Size | 1″ x 36 Yard Roll |
| Product Type | Lead Foil Tape |
| Compatible Substrates | X-Ray Shielding, Vibration Damping, EMI Shielding |
Technical Information
3M 421 is engineered as a lead foil tape for use on X-Ray Shielding, Vibration Damping, EMI Shielding substrates. The 1″ x 36 Yard Roll packaging ensures easy handling and precise application. This tape provides excellent adhesion, conformability, and resistance to temperature extremes, moisture, and common industrial chemicals. Designed to meet the performance demands of aerospace, defense, HVAC, and precision manufacturing environments.
Why Choose 3M 421?
- Professional Grade — Manufactured by 3M for consistent, specification-grade performance
- Versatile Application — Suitable for use on X-Ray Shielding, Vibration Damping, EMI Shielding
- Lead Foil Tape — Purpose-designed construction for demanding applications
- Convenient 1″ x 36 Yard Roll — Ready-to-use format for efficient application with minimal waste
- Quality Assured — Strict QC ensures batch-to-batch consistency and reliability
Frequently Asked Questions
Q: What is 3M 421 used for?
A: 3M 421 is a lead foil tape used for X-Ray Shielding, Vibration Damping, EMI Shielding in aerospace, defense, industrial, and OEM manufacturing applications where reliable tape performance is required.
Q: What is the MPN for this product?
A: The Manufacturer Part Number (MPN) is 7010302197.
Q: What surfaces is 3M 421 compatible with?
A: 3M 421 is compatible with X-Ray Shielding, Vibration Damping, EMI Shielding. Surface preparation including cleaning is recommended for optimal adhesion results.
Q: What package size is available?
A: This listing is for the 1″ x 36 Yard Roll format. Contact us for bulk pricing on larger quantities.
Q: How should 3M 421 be applied?
A: Ensure the surface is clean, dry, and free of contaminants. Apply the tape with firm pressure, smoothing out any air bubbles. Follow the manufacturer application guidelines for your specific substrate and environmental conditions.
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