Polyester Release Film for OCA Die Cutting
product detail
Optical Grade PET Release Film for OCA Die-Cutting
Product Overview: Our PET Release Film is specifically engineered for high-precision OCA (Optically Clear Adhesive) and PSA (Pressure Sensitive Adhesive) die-cutting applications. Utilizing premium optical-grade polyester film as the base material and coated with an ultra-stable silicone release agent, this film ensures a smooth, consistent peel-off experience. It is manufactured in a Class 1000 cleanroom environment to prevent contamination, ensuring that the optical integrity of your touch panels and displays remains flawless.
It uses optical grade PET as the base material, can be coated with polythiophene antistatic coating on one or both sides, and then coated with polyorganosiloxane on the antistatic coating. The coating process is micro-concave, and the dry silicon content is controlled at 0.50-1.50g/m2. The product is widely used in the OCA die-cutting industry.
Mainly compatible with 3M 2 series, 3 series, 7 series OCA glue and Mitsubishi OCA glue.
Technical Specifications & Critical Features
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Ultra-Stable Release Force: Precisely controlled release levels (Ultra-light, Light, or Medium) that prevent "locking" or adhesive transfer during the high-speed die-cutting process.
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Exceptional Surface Quality: Free from "fish-eyes," scratches, and coating streaks. The surface is extremely smooth, ensuring the OCA adhesive maintains its perfect optical profile.
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Optical Clarity: High light transmittance and low haze, allowing for precise visual or automated optical inspection (AOI) after lamination.
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Minimal Silicone Migration: Specialized curing technology prevents silicone oils from migrating onto the adhesive, protecting the bonding strength of the final electronic product.
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Dimensional Stability: Superior resistance to heat and mechanical tension, ensuring the film remains flat and accurate during complex die-cutting and multi-layer lamination.
Application
Precision Engineering for the Electronics & Display Industry
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OCA Die-Cutting: The primary carrier and protector for optically clear adhesives used in mobile phones, tablets, and automotive displays.
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Polarizer Film Manufacturing: Acts as a high-quality protective liner during the lamination and cutting of polarizing sheets.
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FPC & Electronic Components: Serving as a release base for flexible printed circuits and precision thermal interface materials (TIMs).
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Medical Device Assembly: Ideal for medical-grade adhesives and patches where cleanroom standards and consistent release are required.
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Label & Graphic Arts: High-end carrier for specialty labels and graphics that require a clear, high-gloss finish.