Application

Hydrophobic Coatings for Polymer Films

A polymer film may need water repellency while retaining its optical, mechanical, printing, laminating or sealing performance.

Illustrative polymer-film coating process with water-repellent surface behaviourIllustrative visual

The challenge

Why this equipment needs a defined material evaluation.

Low-surface-energy films can be difficult to coat consistently.

Very thin substrates can expose cracking, blocking or flexibility problems that are not visible on rigid panels.

Surface function must be tested after the film's real converting and handling process.

Relevant DSAN materials

Connect the application to available products.

DSAN NEW MATERIALS functional powders provide a formulation starting point for coating and film-development partners.

View Related Solution

Typical equipment

  • Protective polymer films
  • Packaging and release films
  • Optical or display-related films
  • Flexible industrial laminates

Key evaluation parameters

Define the test condition before comparing materials.

The table separates the parameter to evaluate from the value or project condition that still needs confirmation.

ParameterWhy it mattersCurrent value / status
Film polymer and surface treatmentDefines the substrate chemistry and adhesion requirements.Project input required.
Water contact and roll-off behaviourMeasures the target wetting response on the finished film.Project input required.
Coating weight / dry-film thicknessControls appearance, flexibility and material use.Project input required.
Flex and winding durabilityChecks cracking, delamination or loss of function during handling.Project input required.
Optical and converting propertiesConfirms haze, clarity, print, laminate or seal requirements where applicable.Project input required.

Related products

Review the relevant products.

Compare each product format with the actual substrate, equipment and operating conditions.

Technical questions to confirm

Questions an engineer should answer before selection.

Which polymer and surface treatment are used?

Identify the resin, grade, additives and corona, plasma or primer treatment applied before coating.

Which film property has priority?

State whether water repellency, optics, flexibility, printability, sealing or another function controls the decision.

How will the film be processed after coating?

Describe coating, drying, winding, slitting, laminating and storage conditions so the test plan follows the real process.

Discuss your application

Send the substrate, equipment and operating condition.

Use the form for an application discussion, joint R&D or materials distribution.

Inquiries are directed to sales@dsanmaterials.com.