Premium silicone adhesive polyester tape for high-temperature masking, splicing, and composite bonding with exceptional temperature range -60°F to 425°F and chemical resistance.
3M™ Polyester Tape 8403 is a premium high-temperature masking tape engineered for demanding industrial applications. This translucent green-tinted polyester tape features a silicone adhesive that bonds exceptionally well to difficult surfaces, including silicone-coated papers, films, and anodized metals. The tape is specifically designed for aerospace, composite bonding, and metal processing operations where chemical resistance and thermal stability are critical requirements. With a thickness of 2.4 mil, it provides superior durability compared to thinner alternatives, making it ideal for extended masking operations in high-temperature environments.
The silicone adhesive formulation delivers clean, one-piece removal from most surfaces without leaving residue or causing surface damage. This tape maintains its flexibility and adhesive properties across an exceptional temperature range from -60°F (-50°C) to 425°F (218°C), ensuring consistent performance in both extreme heat and cold conditions. The chemical-resistant backing provides outstanding durability in difficult environments such as acid or caustic chemical milling baths, anodization processes, and composite bonding operations. Its translucent green backing makes it easily identifiable for splicing applications, reducing confusion on production floors.
Meeting multiple aerospace specifications including ASTM D3330, ASTM D3652, and ASTM D3759, this tape is trusted by manufacturers in aerospace, automotive, electronics, metalworking, and general industrial sectors. Each case contains 12 rolls, providing excellent value for high-volume operations. Whether used for temporary masking during paint cycles, permanent splicing of silicone liners, or holding parts during composite bonding, 3M Polyester Tape 8403 delivers reliable performance in the most challenging industrial environments.
Key Features
- Silicone adhesive provides clean, one-piece removal from most surfaces without residue
- Exceptional temperature range from -60°F (-50°C) to 425°F (218°C) for extreme conditions
- Chemical resistant backing for durability in acid, caustic, and anodization environments
- 2.4 mil thick polyester backing for superior durability and longer wear life
- Translucent green backing easily identifiable for splicing and masking applications
- Meets aerospace specifications ASTM D3330, ASTM D3652, and ASTM D3759
- 140% elongation at break for flexibility and conformability to contoured surfaces
- Ideal for silicone-coated papers, films, and difficult-to-adhere surfaces
- 12 rolls per case for high-volume industrial operations
- Maintains flexibility in autoclave conditions and demanding work environments
Technical Specifications
| Specification |
Value |
| Product Number | 8403 |
| Part Number | 8403 |
| 3M ID | 7010311751 |
| UPC Code | 00021200614613 |
| Overall Width (Imperial) | 3 inches |
| Overall Width (Metric) | 76.2 millimeters |
| Overall Length (Imperial) | 72 yards |
| Overall Length (Metric) | 65.83 meters |
| Backing Material | Polyester |
| Backing Thickness (Imperial) | 1.4 mil |
| Backing Thickness (Metric) | 0.04 millimeters |
| Adhesive Type | Silicone |
| Product Color | Translucent Green |
| Tensile Strength (Imperial) | 46 pounds per inch |
| Tensile Strength (Metric) | 71.8 Newtons per 100 millimeters |
| Elongation at Break | 140 percent |
| Maximum Operating Temperature (Fahrenheit) | 425°F |
| Maximum Operating Temperature (Celsius) | 218°C |
| Minimum Operating Temperature (Fahrenheit) | -60°F |
| Minimum Operating Temperature (Celsius) | -50°C |
| Application | High Temperature Masking |
| Units per Case | 12 rolls |
| Smallest Saleable Unit | Roll |
| Specifications Met | ASTM D3330, ASTM D3652, ASTM D3759 |
| Brand | 3M |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Marine, Metalworking, Military & Government, Paper, Print, Specialty Vehicles, Transportation |
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