High Temp Polyimide Tape (Kapton / Gold Finger) – Up to 260°C / 500°F
Leader Masking Polyimide Tape (often called Kapton Tape) is our highest-performance masking tape. Featuring a thin, amber-colored film and a premium Silicone Adhesive, it offers superior heat resistance up to 260°C (500°F) without shrinking or leaving residue.
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Color: Amber (Golden)
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Max Temp: 260°C (500°F) Continuous
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Adhesive: Silicone (Clean Removal)
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Feature: Ultra-thin for precision masking lines
Description
Product Overview
When your coating process involves temperatures exceeding 230°C, or when you need the sharpest possible paint line for E-Coating, standard masking tapes just won’t cut it. You need Leader Masking High Temp Polyimide Tape.
Known in the industry as “Gold Finger Tape” or “Kapton Tape”, this is the highest temperature-rated tape in our lineup.
While Green PET tape is great for standard jobs, our Polyimide Tape offers superior thermal stability and chemical resistance. It is the problem-solver for Fluorocarbon spraying, High-temperature sintering, and Precision masking where the tape thickness must be kept to a minimum.
Key Features & Benefits
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🔥 Ultimate Heat Resistance: Rated for continuous use at 260°C (500°F) and short-term spikes up to 300°C (572°F). Ideally suited for high-cure powder coating ovens where green tape might become brittle.
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📏 Ultra-Thin & Conformable: At only 0.06mm total thickness, this tape is thinner than Green Tape. It conforms tightly to complex shapes and leaves a sharper, cleaner paint line (less paint buildup at the edge).
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🚫 Zero Residue: The high-quality Silicone Adhesive ensures clean removal in one piece, even after long bake cycles.
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⚡ Chemical & Water Resistant: Impervious to chemicals used in E-Coating and Anodizing. It creates a tight seal against liquid ingress.
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💪 High Tensile Strength: Despite being thin, the Polyimide film is incredibly tough and resists puncturing.
Technical Specifications
| Property | Value |
| Base Material | Polyimide Film (PI) |
| Adhesive Type | Silicone (Pressure Sensitive) |
| Total Thickness | 0.06 mm (2.4 mil) |
| Backing Thickness | 0.025 mm (1 mil) |
| Temp Resistance | 260°C (500°F) / 30 mins |
| Dielectric Strength | 6,000 Volts |
| Adhesion to Steel | 6N/25mm |
| Color | Amber (Golden) |
Standard Size Chart
| Part No. | Width (mm) | Width (inch) | Rolls/Case |
| LM-006 | 6 mm | 1/4″ | 144 |
| LM-010 | 10 mm | 3/8″ | 96 |
| LM-012 | 12.7 mm | 1/2″ | 72 |
| LM-019 | 19 mm | 3/4″ | 48 |
| LM-025 | 25.4 mm | 1″ | 36 |
| LM-050 | 50.8 mm | 2″ | 24 |
| LM-100 | 100 mm | 4″ | 12 |
Industry Applications
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High-Temp Powder Coating: Essential for masking parts requiring high curing temps (above 230°C) such as non-stick coatings.
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Precision E-Coating: Used when the masking tape needs to be extremely thin to avoid a “step” in the coating thickness.
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Electronics (PCB): Masking gold fingers on circuit boards during wave soldering.
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3D Printing: Excellent bed adhesion surface for ABS/PLA printing.
Why Buy from Leader Masking?
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Custom Slitting: We slit in-house. From 2mm to 500mm, we cut to your exact specification.
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Fresh Stock: We ensure our silicone adhesive is fresh for maximum tackiness.
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Free Sample Rolls: Contact us to test the heat resistance in your own facility.
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