Transparent PET Film

PET Film Supply Company is a Transparent PET Film manufacturer producing clear polyester base film in rolls, slit widths, sheets, and application-specific sizes. Standard grades are non-adhesive and intended for printing, graphics, basic packaging layers, lamination, transparent covers, and general industrial converting. Optical and mechanical properties vary with thickness and test conditions. Projects requiring specified corona treatment, chemical priming, certified electrical insulation, heat resistance, UV stability, conductivity, anti-static control, scratch resistance, or release performance should use the related functional PET grade.

Product Photos

Product Overview

Transparent PET Film is a clear biaxially oriented polyester film selected for balanced stiffness, tensile strength, and dimensional stability. It tracks more consistently than many softer polyolefin films, helping maintain print registration, web alignment, and sheet handling during ordinary converting.

Transparency should be assessed through light transmittance, haze, gloss, flatness, and visible-defect inspection. Suitable clear grades may show light transmittance around 89-91% and haze around 0.5-2.0%, depending on thickness and grade. Standard clear film is not automatically optical grade. An approved sample can define acceptable gels, specks, scratches, wrinkles, damaged edges, and handling marks.

Slit rolls suit continuous printing, coating, and lamination. Cut PET sheets are practical for screen printing, overlays, templates, stencils, transparent covers, and general sheet converting. Confirm core size, winding direction, sheet flatness, edge condition, and interleaving before production.

Benefits

Stable MD and TD behavior supports registration, slitting, sheeting, and repeated converting steps.
Consistent gauge and clean slit edges help reduce tracking problems, edge damage, and material loss.
A smooth clear surface provides good visibility and a reliable base for reverse printing.
Untreated and basic treated grades suit common printing and laminating processes.
PET stiffness supports overlays, packaging structures, templates, and transparent industrial parts.
Retained samples and lot records improve repeat-order comparison and traceability.

What Should Be Checked Before Transparent PET Film Enters Printing or Lamination?

Approval should use the actual ink, adhesive, curing conditions, and equipment speed. Confirm whether the film is untreated or supplied with a basic treated side before loading. Printing trials should check wetting, tape adhesion, rub resistance, and cure completion. Lamination trials should inspect adhesive wet-out, bubbles, silvering, curl, and edge separation after curing. A trial roll is more reliable than a hand sample for checking tracking, tension, flatness, and dimensional stability on the intended line. A controlled dyne level or adhesion primer requires the corresponding treated PET film.

TDS / Technical Data Sheet

Item	Typical Value
Material	Biaxially oriented polyethylene terephthalate
Appearance	Clear, transparent, glossy
Typical thickness	12-250 um; confirm by application
Density	1.39-1.40 g/cm3, grade-dependent reference
Light transmittance	89-91%, ASTM D1003, thickness-dependent reference
Haze	0.5-2.0%, ASTM D1003, grade-dependent reference
Tensile strength	MD 150-220 MPa / TD 160-230 MPa, typical reference
Elongation at break	MD 90-160% / TD 80-150%, typical reference
Dimensional change	Confirm MD/TD at specified temperature and dwell time
Surface options	Untreated / one-side treated / two-side treated
Surface condition	Confirm the required side according to the downstream process
Supply format	Master roll / slit roll / cut sheet
Core size	3 in or 6 in, subject to roll specification
Slitting tolerance	Typically +/-1 mm; tighter control by agreement
Sheet control	Confirm size, squareness, flatness, edge quality, and interleaving
Test status	Reference values are not acceptance limits; final data follow the approved specification or batch report

Packing and Loading

How Should Transparent PET Film Thickness and Supply Format Be Selected?

Thickness should match flexibility, stiffness, machine handling, and finished-part support. Thin transparent BOPET film rolls suit continuous printing, flexible packaging, and high-volume lamination. Medium gauges suit graphics, labels, overlays, and general converting. Thicker grades are easier to handle as cut PET sheets and provide greater rigidity for templates, covers, and sheet-based industrial parts.

For rolls, confirm slit width, tolerance, length or weight, core diameter, maximum outside diameter, winding direction, and splice limits. For sheets, confirm dimensional tolerance, squareness, flatness, stacking direction, edge condition, and whether interleaving is needed. Drawing-based die cutting, laser cutting, adhesive backing, or tight tolerances belong in the Custom Converted PET Film range.

Applications

General printing, reverse printing, graphics, and clear overlays
Film-to-film, film-to-paper, and carton lamination
Basic packaging structures where PET acts as the printed or supporting layer
Inspection windows, transparent covers, templates, and stencils
Clear stock for downstream slitting, sheeting, coating, or fabrication
General dielectric separation where no certified electrical grade is specified

FAQ

Is Transparent PET Film supplied with adhesive?

No. Standard material is a clear polyester base film without adhesive.

Can the film be printed directly?

Printability depends on the ink system and surface grade. Test the actual ink and curing process before production.

Is standard clear PET suitable for direct heat sealing?

Not automatically. Direct sealing requires a verified heat-sealable coating, copolymer layer, or compatible structure.

Can rolls and sheets be produced to custom dimensions?

Yes. Standard slit widths and cut-sheet dimensions can be adjusted within production limits. Precision parts should be handled through the converted PET film range.