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Technical & protective film

— APPLICATION

Film grades for surface protection, release and hygiene film

A surface protection film grade has to leave the surface exactly as it found it. Film on a window profile, a steel sheet or a gloss panel is peeled off at the end of the job, and any mark it leaves becomes the converter's complaint. This page covers film that is not a food pack: protective, release, hygiene, stationery and textile film, and the grades we can supply for them.

Teal protective film peeled back from a white plastic panel, next to a roll of white release film on a plastic core

— REQUIREMENTS

What technical film has to do

Protective film must stick evenly and stay on through forming or transport. Then it must come off cleanly. A gel in the film presses into a soft or polished surface and leaves a dent. Release film must part from an adhesive or a composite without tearing. Hygiene backsheet needs softness and an even gauge, and stationery film needs a flat, print-ready surface.

Much of this film is thin, so a small defect shows. On the converting line every roll has to unwind without blocking and slit with straight edges.

— SELECTION

Choosing a low gel LDPE film grade

  • Low-gel LDPE without additives is the usual start for protective film. Slip agents migrate to the surface, so film that carries an adhesive coat or touches a sensitive surface normally runs without slip or antiblock.

  • HDPE gives stiff, thin film that lies flat, for release liners, labels and synthetic paper.

  • PP random copolymer cast film is clear and soft, for stationery folders, sleeves and textile packs. PP homopolymer cast film is stiffer and glossier.

  • Easy-flowing LDPE suits hygiene film and extrusion coating, where a thin, even layer matters more than toughness. Hygiene film is often laminated to a nonwoven web, covered on nonwovens.

Compare gel level first. If a data sheet describes gels only in words, ask for film from a trial before you commit a critical surface to it.

— GRADES

Grades we can supply

Check each data sheet for additives and gel level before trials on a sensitive surface.

— NEED HELP CHOOSING?

Not sure which grade fits?

Tell us the surface or product the film protects, the gauge and how the film is converted.

— PROCESSING

Gauge and gel control on the line

Gels come from the resin and from the line: degraded melt in dead spots, or a worn screen pack. Clean filtration and a steady melt temperature keep a low-gel grade low in gels. Cast film gives tighter gauge and better clarity; blown film is tougher and more balanced. Tell us the line, die and screen pack.

Blown film extrusion

Film extrusion

— DOCUMENTATION

Documents for non-food film

Most technical film never touches food, so the documents that matter are the safety data sheet under the REACH Regulation (EC) No 1907/2006 and the producer's regulatory summary. The safety data sheet also lists uses the producer advises against, which can include some medical uses. Hygiene film touches skin, so ask for the regulatory summary of the exact grade. Textile and stationery packs are packaging under Regulation (EU) 2025/40, like any other pack.

— FAQ

Common questions

What makes a good release film polyethylene?

Which hygiene film grade suits a backsheet?

Why does my protective film leave marks?