Premium 3.4 mil weather-resistant film tape with Tedlar® PVF backing and acrylic adhesive for outdoor sealing and protection. 47in x 144yd roll with exceptional temperature range -100°F to 225°F and superior chemical resistance.
3M™ Weather Resistant Film Tape 838 is a premium industrial-grade adhesive tape designed for long-term outdoor protection and sealing applications. This white tape features a strong, thin Tedlar® PVF Film backing combined with a high-shear strength acrylic adhesive, making it ideal for demanding weather-resistant and protection applications across multiple industries. The tape measures 47 inches wide by 144 yards long with a 3.4 mil total thickness, providing optimal strength without adding bulk to your projects.
The 2.1 mil Tedlar® PVF Film backing delivers exceptional strength without adding unnecessary thickness, making this tape perfect for building and construction, aerospace, signage, military, and window and door applications. The tape exhibits excellent resistance to weathering along with outstanding mechanical properties and complete inertness toward a wide variety of chemicals, solvents, and staining agents. With no plasticizers in the formulation, this tape maintains superior long-term aging properties and remains strong and flexible across a broad temperature range from -100°F to 225°F.
The acrylic adhesive provides immediate adhesion upon contact with various substrates and maintains high, secure bonding for extended periods, even through climate and temperature variations. This adhesive is particularly resistant to solvents including jet engine fuel, hydraulic fluid, and lubricating oils, making it an excellent choice for aerospace and industrial applications where solvent resistance is critical. The tape meets ASTM D3330, ASTM D3652, and ASTM D3759 specifications and carries an 18-month shelf life from the date of manufacture.
Key Features
- Tedlar® PVF Film backing provides exceptional strength without added thickness
- Excellent weather resistance ideal for long-term outdoor exposure applications
- Acrylic adhesive with immediate contact adhesion and high shear strength
- Outstanding chemical and solvent resistance including jet fuel and hydraulic oils
- Wide operating temperature range from -100°F to 225°F with superior flexibility
- No plasticizers for superior long-term aging properties
- Meets ASTM D3330, D3652, and D3759 specifications
- 18-month shelf life from date of manufacture
- Ideal for building, aerospace, signage, military and window/door applications
- Single-sided adhesive with 47 oz/in adhesion strength
Technical Specifications
| Specification |
Value |
| Product Type | Adhesive Tape |
| Backing Material | Tedlar PVF Film |
| Backing Thickness | 2.1 mil (0.05 mm) |
| Total Tape Thickness | 3.4 mil (0.09 mm) |
| Overall Width | 47 inches (1,193.8 mm) |
| Overall Length | 144 yards (131.674 m) |
| Adhesive Type | Acrylic |
| Adhesion Strength | 47 oz/in (51 N/100mm) |
| Tensile Strength | 24 lb/in (42 N/100mm) |
| Elongation at Break | 170% |
| Minimum Operating Temperature | -30°F (-34°C) |
| Maximum Operating Temperature | 225°F (107°C) |
| Product Color | White |
| Liner Color | White |
| Number of Adhesive Sides | Single-sided |
| Product Form | Roll |
| Shelf Life | 18 months from date of manufacture |
| Standards Met | ASTM D3330, ASTM D3652, ASTM D3759 |
| Part Number | 838 |
| 3M ID | 7100263012 |
| UPC | 00068060001160 |
| Application | Exterior Side Panel Bonding |
| Industries | Military & Government, Aerospace, Building & Construction, Signage |
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