Premium UHMW polyethylene film tape with low-friction backing for surface protection, noise reduction, and anti-wear applications in aerospace, automotive, and industrial settings.
3M™ UHMW Film Tape 5421 is a premium industrial-grade polyethylene tape designed to protect surfaces from abrasion and wear in demanding applications. This transparent, translucent tape features an ultra-high molecular weight (UHMW-PE) backing that creates a unique "slip plane" effect, allowing contact between surfaces without causing wear or damage. The tape combines exceptional abrasion resistance with a low coefficient of friction, making it ideal for applications where lubrication is not possible due to contamination concerns.
The 5421 tape is engineered with a rubber adhesive that provides excellent initial tack for immediate bonding to material surfaces. With dimensions of 4 inches wide by 36 yards long and a total thickness of 6.7 mil, this tape is mounted on a 60# densified kraft paper liner that is silicone-treated for easy die-cutting and fabrication into custom shapes and lengths. The tape operates effectively across a wide temperature range from -30°F to 225°F (-34°C to 107°C), making it suitable for diverse industrial environments.
This general-purpose industrial tape is primarily used in aerospace, automotive, printing, and maintenance/repair/operations (MRO) industries. It effectively reduces squeaks, rattles, and other noises caused by vibration or wear of metal and plastic materials. The product is supplied in convenient 3-roll cases, making it ideal for both small-scale and large-scale industrial applications. 3M™ UHMW Film Tape 5421 is a thinner alternative to the 5423 model, offering flexibility for applications requiring lighter-weight solutions while maintaining superior performance characteristics.
Key Features
- Translucent abrasion-resistant backing protects surfaces from wear and damage
- Low coefficient of friction creates slip plane effect for smooth contact between surfaces
- Rubber adhesive provides excellent initial tack for immediate bonding
- Reduces squeaks, rattles, and vibration-related noises in mechanical assemblies
- Ideal for applications where lubrication is not feasible due to contamination concerns
- Easy die-cutting capability with silicone-treated kraft paper liner
- Ultra-high molecular weight polyethylene (UHMW-PE) backing with superior durability
- Wide operating temperature range from -30°F to 225°F
- Excellent chemical resistance and long wear life
- Suitable for aerospace, automotive, printing, and MRO industries
Technical Specifications
| Specification |
Value |
| Product Number | 5421 |
| UPC Code | 00051138950187 |
| Overall Width (Imperial) | 4 inches |
| Overall Width (Metric) | 101.6 mm |
| Overall Length (Imperial) | 36 yards |
| Overall Length (Metric) | 32.91 meters |
| Total Tape Thickness without Liner (Imperial) | 6.7 mil |
| Total Tape Thickness without Liner (Metric) | 0.17 mm |
| Backing Thickness (Imperial) | 5 mil |
| Backing Thickness (Metric) | 0.13 mm |
| Adhesive Thickness (Metric) | 0.13 mm |
| Backing Material | Ultra-high Molecular Weight Polyethylene (UHMW-PE) |
| Adhesive Type | Rubber |
| Product Color | Transparent |
| Primary Liner | 60# Densified Kraft, Silicone Treated Paper |
| Adhesion Strength (Imperial) | 26 oz/in |
| Adhesion Strength (Metric) | 28 N/100mm |
| Tensile Strength (Imperial) | 30 lb/in |
| Tensile Strength (Metric) | 796 N/100mm |
| Elongation at Break | 440% |
| Maximum Operating Temperature (Fahrenheit) | 225°F |
| Maximum Operating Temperature (Celsius) | 107°C |
| Minimum Operating Temperature (Fahrenheit) | -30°F |
| Minimum Operating Temperature (Celsius) | -34°C |
| Shelf Life | 18 months from date of manufacture |
| Product Form | Roll |
| Units per Case | 3 rolls |
| Smallest Saleable Unit | Roll |
| Application | General Industrial |
| Industries | Aerospace, Appliance, Automotive, Electronics, General Industrial, Metalworking, Military & Government, Specialty Vehicles, Transportation |
| Specifications Met | ASTM D3330, ASTM D3652, ASTM D3759 |
| Brand | 3M |
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