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High Uniform Color Blue BOPET Polyester Film, Low Shrinkage & High Temperature Resistant Blue PET Base Film for Silicone Coating
Our royal blue BOPET polyester film adopts high-purity virgin polyester resin, presenting exquisite uniform tint across batches. Boasting ultra-low thermal shrinkage and outstanding dimensional stability under high temperature, it delivers superior flatness and consistent surface energy. An elite functional substrate dedicated to silicone coating, high-temperature masking tape, release liner and electronic insulation applications.
Jul 7th,2026
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High Cleanliness Blue Polyester Substrate for High-End Adhesive Tape
Product Overview
Conventional colored polyester film only serves a basic marking purpose, while our royal blue BOPET substrate is engineered from the molecular level.
Precise biaxial stretching aligns polyester molecular chains in two directions, delivering ultra-consistent optical tint without batch deviation. The distinctive low-saturation blue tone creates sharp visual contrast in high-speed coating and die-cutting processes, helping operators quickly distinguish liner layers, greatly reduce missing peeling and leftover residue, and elevate overall production yield by 6%–12%.
Product Features
1. Adopts internal masterbatch coloring process. The pigment is fully integrated into the polyester molecular chain instead of surface dyeing. It has uniform color across the entire roll with consistent batch color, no fading or graying after high-temperature baking.
2. Optimized biaxial molecular orientation structure delivers ultra-low thermal shrinkage and low thermal creep. It maintains stable dimensions under continuous heating, avoiding warping, ripples and edge curling during high-speed silicone coating.
3. Manufactured with three-stage melt filtration for ultra-clean surface, free of crystal points, fish eyes and impurities. Balanced surface tension on both sides ensures uniform glue coating without missing coating.
4. High tensile modulus and low elongation with excellent tear resistance. Stable tension during high-speed slitting and rewinding greatly reduces film breakage in fully automatic production lines.
5. Excellent chemical inertness with good resistance to solvents, weak acids and alkalis, plus reliable insulation performance. Compliant with RoHS and REACH standards, no precipitation under high temperature.
6. The distinctive blue tone provides clear visual layering, convenient for automatic die-cutting and peeling identification, effectively reducing operating errors and improving production yield.
Beyond Ordinary Colored Film, We Focus On Your Production Yield
Unlike ordinary colored polyester films on the market that only focus on appearance, our blue PET substrate is developed focusing on downstream processing performance and production benefits. With consistent batch stability and fewer defective products, it is the preferred long-term cooperative material for high-end adhesive tape and electronic material manufacturers. Custom thickness and slitting width are available, and free samples can be provided for your quality testing.
Related Links
• Royal Blue BOPET Polyester Film – Explore our premium range of colored polyester substrates ideal for silicone coating and high-temperature masking tape manufacturing.
• Functional Colored PET Base Film – We supply green PET, amber PET, red PET, glossy black PET, matte black PET and other tinted polyester films for precision coating, electronic insulation and rigorous high-temperature industrial processes.
• Product Range – Browse our full selection of industrial polyester films to find the perfect material match for your production requirements.
• All Film Collections – View our complete lineup of BOPET substrates including clear, colored, glossy and matte grades suited to diverse industrial manufacturing needs.
• About Us – Learn more about our expertise as a trusted manufacturer of high-quality PET polyester base film for adhesive and electronic material industries.
