Chemical Coated PET Film

Films Protection Company is the manufacturer of Chemical Coated PET Film for converters that need a more dependable treated surface than standard untreated PET. This surface-treated BOPET film improves wettability, ink anchorage, coating uniformity, lamination bonding, metallizing consistency and adhesive coating compatibility. It is used for label stock, printed laminates, flexible packaging and industrial laminate converting where coating side, dyne level and production trial results must be confirmed before repeat use.

Product Overview

Chemical Coated PET Film is used when untreated PET cannot provide enough surface reliability for printing, coating, lamination or metallizing. Its purpose is to create a chemically treated interface that helps inks, adhesives, primers, functional coatings and metal layers attach more consistently to the PET base. The key selection point is not only film clarity, but whether the treated side can support the next converting process.

Untreated PET works well for clarity, stiffness and dimensional stability, but converting may require stronger wet-out and anchorage. Reverse printing may show ink lift after drying. Adhesive coating may show fisheye marks, voids or unstable edges. Lamination may lose peel bond. Vacuum metallizing may produce aluminum rub-off, pinhole weakness or layer separation. For approval, coating side, dyne level, ink system, adhesive chemistry, drying temperature, storage time and laminate structure should be checked with actual-line trials. For repeat rolls, compare retained samples, slit-edge cleanliness, roll flatness and winding direction.

Benefits

• Improves wettability on the treated PET side for ink, adhesive, coating liquid and metal deposition.
• Supports ink anchorage in reverse printing, label facestock and printed laminate structures.
• Helps coating liquids flow evenly, reducing fisheye marks, voids and unstable edges.
• Improves lamination bonding for adhesive coating, extrusion lamination and industrial laminate webs.
• Supports metallizing consistency by improving aluminum adhesion and reducing metal-layer separation risk.
• Gives practical approval checks, including dyne test, tape-pull test, rub test, peel bond review, metal rub-off inspection and retained sample comparison.

Before approving coating side, dyne level, haze, rub resistance, or tape-pull performance, review PET film process and coating adhesion checks for the upstream manufacturing factors that may affect coated PET film stability.

When Is Chemical Coated PET Film More Suitable Than Untreated PET Film?

Chemical Coated PET Film is more suitable when the next process depends on controlled surface behavior rather than only film clarity or tensile strength. Untreated PET may be acceptable for spacer films, but it can be less reliable for ink wet-out, adhesive coating, metallizing or multilayer lamination. A chemically coated surface gives the line a stronger anchorage layer, helping reduce ink lift, coating voids, weak laminate bonds and metal-layer separation. For label stock, printed packaging and industrial laminate webs, confirm coating side, dyne level, ink system, adhesive chemistry, converting temperature and retained sample match before approval.

TDS

Packing and Loading

Applications

• Reverse-printed PET laminates requiring tape-pull and rub checks after ink drying.
• Label stock and durable label facestock requiring printable or adhesive-coated PET.
• Adhesive coating base film where wet-out and edge stability matter.
• Industrial laminate converting with adhesive, foil, PE or functional coatings.
• Metallizable PET base film where aluminum adhesion and delamination need verification.
• Printed film converting where slit quality and repeat-order consistency matter.

How Should Ink Anchorage, Coating Stability and Metallizing Consistency Be Verified?

Before production, Chemical Coated PET Film should be tested on the actual printing, coating, lamination or metallizing line, not approved by appearance alone. A dyne pen or wetting tension test can confirm surface energy. Ink anchorage should be checked by tape pull, rub resistance and aging after drying. For adhesive coating or lamination, compare peel strength, edge lift and failure mode after dwell time. For metallizing, review aluminum adhesion, rub-off, pinholes and delamination after lamination. Retained samples should be kept for repeat-roll comparison.

FAQ

Is Chemical Coated PET Film the same as untreated PET film?

No. Untreated PET provides clarity, strength and dimensional stability. The coated grade adds a treated surface for wetting, ink anchorage, lamination bonding and metallizing adhesion.

Is this product mainly for surface durability coating?

No. This product focuses on adhesion-promoting surface treatment for printing, coating, lamination and metallizing. Surface durability performance should be tested separately if required.

What should be confirmed before repeat rolls?

Confirm coating side, dyne level, thickness, width, winding direction, slit-edge cleanliness, roll flatness, retained sample match and converting trial result.

Does the treated surface remain stable during storage?

Storage time, humidity, heat and contamination can affect surface performance. Keep rolls clean and dry, then recheck dyne level or bonding before critical converting runs.