High temperature masking tape is designed to withstand high temperatures, often up to 260°C (500°F), making it suitable for use in extreme conditions like powder coating or automotive painting. Suitable for use in multiple industries such as electronics, automotive, aerospace, and painting.
Backed by Jiangsu Gelly Adhesive Material Technology Co., Ltd and our 30 years of special tape expertise, our High Temperature Masking Tape (Blue PET Series) is an elite shielding solution engineered for extreme thermal environments. Combining a premium blue PET (Polyester) film backing with a specialized heat-resistant silicone adhesive, this tape reliably withstands temperatures up to 260°C (500°F). The distinctive blue color is widely used in industrial facilities for process color-coding, distinguishing high-heat zones, and providing high visibility against metal surfaces. It guarantees clean, residue-free removal even after intense powder coating and automotive bake cycles.
Extreme Heat Resistance (Up to 260°C): Specially formulated to survive extreme conditions like powder coating curing ovens, autoclave cycles, and automotive paint baking without melting, shrinking, or degrading.
Process Color-Coding (Blue): The vibrant blue color allows factory managers to easily distinguish this tape from standard green or amber tapes, preventing errors by ensuring the correct high-temperature grade is used for specific 260°C processes.
Superior Chemical & Solvent Resistance: The dense PET backing and silicone adhesive system are highly resistant to harsh solvents, acids, alkalis, and plating solutions, ensuring structural integrity in aggressive environments.
Zero Residue Clean Removal: Provides excellent grip on metals, glass, and PCBs, but is engineered to peel off easily in one piece after heat exposure, leaving absolutely zero sticky residue behind.
High Tensile Strength & No Tearing: The robust PET film backing prevents the tape from tearing or breaking during removal, minimizing surface damage and eliminating costly post-process cleaning.
Powder Coating & Industrial Ovens: Effectively masks off threaded holes, grounding points, and contact surfaces during high-temperature powder coating and curing processes.
Automotive Painting & Baking: Protects trim, glass, and sensitive electronics during spray painting and high-heat paint booth bake cycles.
Electroplating & Anodizing: Its exceptional acid and alkali resistance makes it ideal for masking specific areas during chemical etching and anodizing baths.
Electronics & PCB Manufacturing: Used for masking components during wave soldering, SMT reflow, and high-heat testing where a blue visual indicator is required.
Construction: Blue PET (Polyester) Film + Heat-Resistant Silicone Adhesive
| Item | Unit | Data |
| Backing Material | / | PET Film (Polyester) |
| Adhesive Type | / | Heat-Resistant Silicone |
| Color | / | Blue (High Visibility / Process Coding) |
| Temperature Resistance | ℃ | 220°C (Long term) / Up to 260°C (Short term) |
| Total Thickness | μm | 60 / 80 (Customizable) |
| 180° Peel Adhesion (to Steel) | N/25mm | 6.0 - 8.0 |
| Tensile Strength | N/25mm | ≥ 100 |
| Elongation at Break | % | ≥ 40 |
| Width / Length | mm / m | 3mm - 500mm / 33m, 50m, 66m (Custom available) |
| Core Size | mm | 26mm / 32mm / 76mm / Custom |




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In industrial facilities, color-coding is critical for safety and process control. Many factories use Blue PET tape specifically to designate a 260°C extreme heat zone, or to differentiate it from green tapes used for standard 200°C powder coating. It prevents operators from accidentally using the wrong temperature grade, reducing costly manufacturing errors.
No. Our heat-resistant silicone adhesive system is specifically formulated to remain chemically stable under extreme thermal stress. Unlike rubber-based adhesives that melt and bake onto surfaces, our blue PET tape peels off cleanly in one piece without tearing or leaving any sticky residue, eliminating post-process cleaning.
Yes. The dense PET backing combined with the silicone adhesive provides outstanding resistance to harsh acids, alkalis, and plating solutions. It is widely used to mask off threaded holes and contact points during chemical etching, electroplating, and anodizing baths without degrading.
Absolutely. As a direct manufacturer with 30 years of experience, we supply standard jumbo rolls for tape converters and offer comprehensive OEM/private-label services. We utilize advanced high-speed slitting machines to provide custom narrow widths starting from 3mm, ideal for precise PCB masking and automated manufacturing lines.