Grass Green PET Insulation Tape: High-Temp Transformer & Battery Guide
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Grass Green High-Temp Polyester Insulation Tape: Specialized Applications Beyond Masking
By Yannis Lin | Overseas Technical Sales Lead at Hong Kong Huilink Trading Co., Limited
Beyond Simple Powder Coating: The High-Dielectric Reality
Most industrial buyers associate Green Polyester (PET) Tape exclusively with high-temperature powder coating masking. However, electrical engineers in power electronics, dry-type transformer manufacturing, and EV battery pack assembly specify Grass Green High-Temp Polyester Tape for its exceptional electrical dielectric strength (> 5.0 kV), high tensile mechanical holding power, and chemical resistance against varnish and electrolyte solvents.
Formulated with a 2.0 mil (0.050mm) bi-orientated polyester film backing coated with high-crosslink pressure-sensitive silicone adhesive, Grass Green PET tape provides reliable Class H (180°C continuous, 200°C short peak) electrical isolation while giving quality control inspectors unmistakable visual verification on production lines.
1. Grass Green PET Tape Technical Performance Matrix
At Hong Kong Huilink Trading Co., Limited, our Dongguan coating lines produce grass green polyester tapes engineered specifically for stringent dielectric and chemical environments:
| Technical Property | Grass Green PET Insulation Tape Value | Testing Method / Industry Standard |
|---|---|---|
| Backing Film Material & Pigment | Bi-Oriented Grass Green Polyester (PET) Film | Visual Contrast / UL Compliance |
| Film / Total Nom. Thickness | 0.025mm / 0.060mm ± 0.003mm (2.4 mil) | GB/T 7125-2014 |
| Dielectric Breakdown Voltage | ≥ 5.0 kV (5,000 Volts) | GB/T 1408.1 High Voltage Test |
| Continuous Thermal Insulation Rating | 180°C Continuous (200°C 30-min peak) | UL 510 / Class H Rating |
| 180° Peel Adhesion to Steel | 600 ± 100 gf / 25mm | GB/T 2792-2014 |
| Tensile Strength & Elongation | ≥ 120 MPa / ≥ 80% | GB/T 30776 Tensile Standard |
| Chemical & Varnish Resistance | Exceptional (Resists acid, alkalis, epoxy resins) | Varnish Immersion Bake Test |
2. Three Specialized Industrial Applications
A. Dry-Type Transformer & Motor Coil Interlayer Wrapping
In high-capacity dry-type transformers, copper magnet wire windings require turn-to-turn and layer-to-layer dielectric barriers. Grass Green PET tape holds high tension without tearing, withstands 180°C epoxy vacuum-pressure impregnation (VPI) varnish baking, and gives operators instant visual inspection of wrapped boundaries.
B. Lithium Battery Module & Cathode Tab Heat Sealing Protection
Pouch and prismatic lithium battery cells undergo hot-bar tab welding at 180°C–200°C. Grass Green PET tape protects aluminum-copper terminal tabs from thermal short-circuiting and prevents aggressive electrolyte solvents from degrading internal separator barriers.
C. Acid Chemical Electroplating & Anodizing Masking
During chromic anodizing and gold/nickel electroplating, aggressive acid baths corrode exposed metal surfaces. Grass green PET tape creates an airtight seal over polished faces, resisting chemical undercut and stripping cleanly off metals without leaving sticky silicone residue.
Request Free Testing Sample Rolls for Your Production Line
We manufacture master jumbo rolls (1020mm x 66m/500m) and custom slit rolls (from 2mm to 1020mm width) with full TDS, UL, and RoHS certificates ready for immediate dispatch.
Request Free Sample Pack via WhatsApp3. Why Global Electrical Manufacturers Sourcing from Huilink
Sourcing specialized grass green PET tapes from Hong Kong Huilink Trading Co., Limited delivers commercial and technical peace of mind:
- Precision Narrow Slitting Down to 2mm: Clean, burr-free roll edges prevent edge lifting when wrapping ultra-fine transformer bobbins or micro-inductors.
- Zero Silicone Residue Guarantee: Thermally crosslinked silicone adhesive remains locked to the PET backing film, ensuring zero contamination during post-bake removal.
- Direct Manufacturer Pricing: Reduce unit insulation costs by 20% to 35% compared to western distribution channels, supported by flexible EXW, FOB, FCA, or CIF shipping terms.
Get Direct Factory Wholesale Quotes for Grass Green PET Tapes
Hong Kong Huilink Trading Co., Limited provides direct factory quotes, master jumbo roll slitting, custom die-cut shapes, and rapid export logistics.
Get Wholesale Quote on WhatsApp (+86 13798812128)