UV Stabilized PET Film

Protective Film Factory is a manufacturer of uv stabilized pet film for outdoor labels, exterior overlamination, solar backsheet auxiliary layers, and weatherable composite laminates. This UV stabilized polyester film is made with UV additive modification or an absorber coating structure to slow yellowing, haze growth, brittleness, and tensile loss during outdoor exposure. Before bulk production, sample film can be checked for clarity change, tensile retention, coating surface condition, and bonding suitability.

Product Overview

Our uv stabilized pet film is developed for outdoor material structures where standard clear PET may lose appearance or strength after long-term sunlight exposure. It is used in exterior printed labels, durable decals, protective overlamination, and laminated outdoor panels where clarity, coating adhesion, tensile performance, and dimensional stability need to work together.

UV protection can be adjusted through a UV additive modified PET layer, UV absorber coating, or treated surface prepared for coating and adhesive bonding. For outdoor labels and external overlamination, this UV resistant PET film helps reduce graphic fading and surface aging. In solar backsheet auxiliary layers and weather resistant PET film laminates, it works as a supporting PET layer inside a composite structure, not as a finished solar backsheet by itself.

Benefits

Helps reduce yellowing, haze increase, and visible aging during outdoor exposure.
Supports better tensile retention and flexibility than untreated PET after UV aging test conditions.
Available with treated surface for coating, printing, adhesive lamination, and primer bonding.
Keeps dimensional stability for exterior overlamination and weatherable composite structures.
Uses UV additive or absorber coating structure to support lower UV transmission in selected applications.

How does UV stabilized PET film resist yellowing during outdoor exposure?

UV stabilized PET film helps slow the visible and mechanical changes that can appear when polyester film is used under sunlight for a long period. For outdoor labels, exterior overlamination, and weatherable composite structures, the concern is not only clear appearance. Yellowing resistance, haze increase, tensile retention, elongation retention, and brittleness after UV aging test conditions are also important. A UV additive modified core layer or absorber coating helps reduce UV energy reaching printed graphics, adhesive layers, and laminated substrates. For demanding outdoor use, the material should be checked by yellowness index, tensile strength retention, coating surface condition, and flexibility before bulk production.

Production Line

TDS

Item	Typical Value
Product Type	uv stabilized pet film / UV stabilized polyester film
Base Material	PET / BOPET
Thickness Range	25um-250um, custom thickness available
Standard Width	500mm-2050mm, slit roll available
Color Options	Clear, translucent, white, light tint
Surface Treatment	Corona treated side, coated side, or primer-ready side
Surface Tension	42-52 dyne/cm, typical value
Light Transmission	86%-91%, depending on thickness and coating
Haze	2%-8%, depending on structure and finish
UV Protection Structure	UV additive modified PET or UV absorber coating structure
UV Transmittance Check	Low UV transmission in selected UV range, sample confirmed
Tensile Strength	MD 150-220 MPa / TD 180-250 MPa, typical value
Elongation at Break	MD 90%-140% / TD 80%-130%, typical value
Heat Shrinkage	<=2.0% at 150C for 30min, sample condition
UV Aging Test Reference	In-house sample test under controlled UVA exposure
Tensile Retention After Aging	Typically 70%-85%, depending on exposure condition
Lamination Compatibility	Acrylic adhesive, PU adhesive, primer, coating sample test recommended

Applications

Outdoor printed labels, durable decals, and weatherable nameplates.
Exterior overlamination for printed graphics exposed to sunlight.
Solar backsheet auxiliary PET layer inside laminated structures.
Weatherable composite panels requiring PET support and UV aging resistance.
Industrial coating base film for protective surface layers exposed to sunlight.
Printed films where ink adhesion, clarity, surface treatment, and dimensional stability need to be tested together.

What should be checked before laminating UV stabilized PET film with coatings, adhesives, or solar backsheet layers?

Before this film is used in an outdoor laminate, it should be tested with the actual coating, adhesive, ink, or backsheet structure. Surface treatment level, coating wet-out, adhesive bonding, heat shrinkage, and UV aging performance can all change long-term laminate stability. In solar backsheet auxiliary layers and exterior composite films, the PET layer should keep stable dimensions while supporting adhesion between primer, adhesive, and protective layers. A practical sample test should include peel strength after lamination, visual residue or delamination observation, tensile retention after aging, haze and yellowing change, and outdoor exposure simulation. These checks help reduce edge lifting, yellowing, adhesive failure, coating separation, and loss of support strength during long-term outdoor use.

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FAQ

Is this film supplied as a finished consumer glass film?

No. It is supplied as a functional PET base film for industrial coating, printing, lamination, and long-term outdoor material structures.

Can this film be used for printing and lamination?

Yes. Treated or coated surface options can support printing, coating, primer bonding, and adhesive lamination after sample testing with the real ink or adhesive system.

What should be tested before bulk production?

Check yellowing index, haze, tensile retention, elongation retention, coating adhesion, peel strength, and laminate appearance after UV aging.

Can the UV resistance level be customized?

Yes. UV additive level, absorber coating structure, thickness, surface treatment, and roll format can be adjusted according to the final outdoor application.