Premium 3M weather-resistant adhesive tape with Tedlar PVF backing for outdoor durability, extreme temperature resistance from -100°F to 225°F, and superior chemical/solvent resistance for industrial applications.
3M™ Weather Resistant Film Tape 838 is a premium industrial-grade adhesive tape engineered for long-term outdoor and weather-resistant applications. This white tape features a thin yet exceptionally strong Tedlar® PVF (polyvinyl fluoride) film backing combined with a high-performance acrylic adhesive that provides immediate adhesion and maintains secure bonding over extended periods. The 3.4 mil total thickness delivers optimal strength-to-thickness ratio, making it ideal for applications where space constraints are critical without compromising durability.
The tape is specifically formulated for building and construction, aerospace, signage, military, and window and door industries. It excels in sealing seams of outdoor building panels, windows, and doors, as well as hinge seals on shower doors and other moisture-intrusion critical areas. The Tedlar® PVF backing provides outstanding mechanical properties and inertness toward a wide variety of chemicals, solvents, and staining agents, including jet engine fuel, hydraulic fluid, and lubricating oils.
With an operating temperature range from -100°F/-73°C to 225°F/107°C, this tape maintains its flexibility and adhesive strength across extreme temperature variations. The product contains no plasticizers, contributing to superior long-term aging properties and environmental resistance. Each case includes 72 rolls of 72-yard length tape, providing substantial coverage for industrial and commercial applications requiring reliable weather protection and sealing solutions.
Key Features
- Tedlar® PVF film backing provides exceptional strength without added thickness
- Excellent weathering resistance ideal for outdoor exposure and long-term applications
- Outstanding mechanical properties and inertness to chemicals, solvents, and staining agents
- Wide operating temperature range from -100°F to 225°F with maintained flexibility
- High shear strength acrylic adhesive with immediate contact adhesion and solvent resistance
- No plasticizers for superior long-term aging properties and environmental stability
- Tough and flexible performance across broad temperature variations
- Ideal for aerospace, military, construction, signage, and window/door industries
- Resistant to jet fuel, hydraulic fluid, and lubricating oils
- Case of 72 rolls with 72-yard length per roll for substantial coverage
Technical Specifications
| Specification |
Value |
| Product Type | Adhesive Tape |
| Brand | 3M™ |
| Model/Part Number | 838 |
| UPC | 05054180006425 |
| 3M Product Number | 838 |
| 3M ID | 7100080360 |
| Product Color | White |
| Backing Material | Tedlar® PVF (Polyvinyl Fluoride) |
| Backing Thickness | 2.1 mil (0.05 mm) |
| Overall Tape Thickness | 3.4 mil (0.09 mm) |
| Adhesive Type | Acrylic |
| Adhesive Thickness | 0.05 mm |
| Liner Material | Acrylic |
| Liner Color | White |
| Number of Adhesive Sides | Single-sided |
| Overall Width | 1/2 inch (127 mm) |
| Overall Length | 72 yards (65.83 m) |
| Product Form | Roll |
| Smallest Saleable Unit | Roll |
| Quantity Per Case | 72 rolls |
| Adhesion Strength | 47 oz/in (51 N/100mm) |
| Tensile Strength | 24 lb/in (42 N/100mm) |
| Elongation at Break | 170% |
| Minimum Operating Temperature | -100°F (-73°C) |
| Maximum Operating Temperature | 225°F (107°C) |
| Shelf Life | 18 months from date of manufacture |
| Specifications Met | ASTM D3330, ASTM D3652, ASTM D3759 |
| Industries | Military & Government, Aerospace, Building & Construction, Signage, Window & Door |
| Application | Exterior Side Panel Bonding, Sealing, Weather Resistance |
| Use Restriction | For industrial/occupational use only. Not for consumer sale or use. |
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