Industrial-grade green polyester masking tape with silicone adhesive, rated for extreme temperatures from -60°F to 425°F, ideal for aerospace, composite bonding, and high-temperature applications.
3M™ Polyester Tape 8403 is a premium industrial-grade masking tape designed for demanding applications requiring exceptional performance under extreme temperature conditions. This translucent green polyester tape features a silicone adhesive formulation that provides superior bonding to difficult surfaces including silicone-coated papers, films, and composite materials. The tape maintains flexibility and adhesion across a broad temperature range from -60°F (-50°C) to 425°F (218°C), making it ideal for aerospace, automotive, and manufacturing applications.
This heavy-duty masking tape is specifically engineered for high-temperature applications, composite bonding, and permanent splicing operations. The silicone adhesive ensures clean, one-piece removal from most surfaces without leaving residue or damaging underlying materials. The tape's chemical-resistant properties make it exceptionally durable in harsh environments such as anodization baths, metal bonding processes, and caustic chemical milling operations. As a thicker version of the 3M™ Polyester Tape 8402, the 8403 offers enhanced durability and extended service life.
The 14-inch wide by 72-yard roll format provides ample coverage for industrial splicing, masking, and protective applications. Meeting multiple aerospace specifications (ASTM D3330, ASTM D3652, ASTM D3759), this tape is engineered for professionals who require reliable performance in the most challenging work environments. The translucent green backing facilitates easy identification during splicing operations, while the tape's 140% elongation at break ensures it maintains integrity even under stress.
Key Features
- Silicone adhesive provides clean removal in one piece from most surfaces
- Operates reliably across extreme temperature range from -60°F to 425°F (-50°C to 218°C)
- Chemical resistant backing and adhesive for durability in anodization and caustic environments
- Translucent green backing enables easy identification for splicing applications
- Thicker, more durable version of 3M Polyester Tape 8402 with extended service life
- Bonds exceptionally well to difficult-to-adhere surfaces including silicone-coated papers and films
- Meets multiple aerospace specifications including ASTM D3330, D3652, and D3759
- 140% elongation at break ensures flexibility and integrity under stress
Technical Specifications
| Specification |
Value |
| Product Name | 3M™ Polyester Tape 8403 |
| Part Number | 8403 |
| UPC Code | 00051115118586 |
| Backing Material | Polyester |
| Adhesive Type | Silicone |
| Product Color | Translucent Green |
| Overall Width (Imperial) | 14 inches |
| Overall Width (Metric) | 355.6 millimeters |
| Overall Length (Imperial) | 72 yards |
| Overall Length (Metric) | 65.83 meters |
| Backing Thickness (Imperial) | 1.4 mils |
| Backing Thickness (Metric) | 0.04 millimeters |
| Thickness (Mil) | 2.4 mil |
| Tensile Strength (Imperial) | 46 pounds per inch |
| Tensile Strength (Metric) | 71.8 Newtons per 100mm |
| Elongation at Break | 140 percent |
| Minimum Operating Temperature (Fahrenheit) | -60°F |
| Minimum Operating Temperature (Celsius) | -50°C |
| Maximum Operating Temperature (Fahrenheit) | 425°F |
| Maximum Operating Temperature (Celsius) | 218°C |
| Application | High Temperature Masking |
| Units per Case | 1 Roll |
| Smallest Saleable Unit | Roll |
| Specifications Met | ASTM D3330, ASTM D3652, ASTM D3759 |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Marine, Metalworking, Military & Government, Paper, Print, Specialty Vehicles, Transportation |
| Brand | 3M™ |
| Recommended Uses | Splicing, Composite Bonding, Masking, Flash Breaker, Surface Protection, Paint Masking |
| Removal Type | Clean Removal - One Piece |
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