Protective Film China Company is a polyester PET film manufacturer supplying PET / BOPET base films for industrial converting. The range covers clear, white, matte, glossy, corona-treated, coated and heat-stabilized grades. Thickness, finish, treatment level and supply format can be matched to printing, lamination, insulation, slitting, die cutting and laser processing.
Showing all 12 results
Polyester PET film material is commonly selected when production requires stable dimensions, mechanical strength and a controlled surface appearance. BOPET, or biaxially oriented polyester film, is stretched in machine and transverse directions. This supports tensile strength, flatness and reliable handling. Heat-stabilized grades suit processes where shrinkage or print registration need closer control.
When sourcing polyester PET film from China, it is useful to start with the actual converting route. Lightweight rollstock, medium-gauge film and thicker sheet grades behave differently. Web tension, treated side, finish, temperature and geometry all influence the final choice.
Product Series | Main Selection Points | Typical Production Uses |
Clear and Low-Haze PET Film | Clarity, haze, smoothness | Printing, coating, lamination |
White PET Film | Opacity, light transmission, printable finish | Labels, graphics, insulation parts |
Matte PET Film | Lower gloss, reduced glare | Overlays, labels, display parts |
Glossy PET Film | Smooth finish, visual consistency | Printing, laminating, coating |
Corona-Treated PET Film | Treated side, dyne check | Printing, coating, lamination |
Chemically Treated or Coated PET Film | Wettability, adhesion compatibility | Printing, coating and lamination requiring closer surface control |
Heat-Stabilized PET Film | Shrinkage, flatness, registration | Printed electronics, membrane switches |
Slit Rolls and PET Sheets | Width tolerance, clean edges, flatness | Slitting, sheeting, cutting |
Protective Film China Company supplies master rolls, slit-to-width rolls and cut sheets. Standard, surface-treated and heat-stabilized grades are reviewed before repeat production. As a base PET film factory, we keep treated-side records and retained samples for repeat orders.
Choose the grade by starting with the downstream process. Continuous web handling calls for stable tension, thickness uniformity and clean winding. Sheet parts need stiffness and flatness. Printing, coating and lamination require treated-side confirmation. When the process includes heat, shrinkage should be checked at the actual temperature and dwell time.
Option | Best Used When | Points to Confirm Before Volume Production |
Standard Clear PET / BOPET | General converting | Thickness, haze, light transmission, flatness |
White PET Film | Opacity and print surface matter | White level, print method, finish |
Matte PET Film | Reduced glare is required | Haze, gloss, texture |
Glossy PET Film | Smooth appearance is preferred | Clarity, surface inspection |
One-Side Corona Treated | One surface needs improved wettability | Treated side, dyne reference, winding direction |
Two-Side Corona Treated | Both surfaces enter conversion | Treatment level, storage time, process trial |
Chemically Treated or Coated | More demanding adhesion is required | Ink, coating or lamination system |
Heat-Stabilized Grade | Elevated temperature or tight registration matters | Test temperature, dwell time, flatness |
Option | Best Used When | Points to Confirm Before Volume Production |
Standard Clear PET / BOPET | General converting | Thickness, haze, light transmission, flatness |
White PET Film | Opacity and print surface matter | White level, print method, finish |
Matte PET Film | Reduced glare is required | Haze, gloss, texture |
Glossy PET Film | Smooth appearance is preferred | Clarity, surface inspection |
One-Side Corona Treated | One surface needs improved wettability | Treated side, dyne reference, winding direction |
Two-Side Corona Treated | Both surfaces enter conversion | Treatment level, storage time, process trial |
Chemically Treated or Coated | More demanding adhesion is required | Ink, coating or lamination system |
Heat-Stabilized Grade | Elevated temperature or tight registration matters | Test temperature, dwell time, flatness |
For PET film thickness inquiries, 12um is often evaluated for lightweight web processing and lamination. A 75um / 3 mil grade gives more body for slitting and sheeting. A 125um grade is more suitable for cut sheets and precision parts. Other gauges should be checked against equipment and handling requirements.
Corona-treated PET film should be rechecked after extended storage, after a change in ink, coating or lamination system, or before an adhesion-sensitive run. Surface energy can fall over time because of storage conditions and surface migration. A dyne-level reading is a useful wetting-tension reference, but it is not a substitute for an adhesion trial. For critical runs, confirm the treated side and test the process before volume production.
Item | Typical Range / Customizable Value |
Material | PET / BOPET polyester base film |
Thickness | Grade-dependent; common references include 12um, 75um / 3 mil and 125um |
Appearance | Clear, ultra-clear, translucent white, opaque white, matte, glossy, hazy or colored |
Surface treatment | Untreated, one-side corona treated, two-side corona treated, chemically treated or coated |
Dyne-level reference | Confirm by treated side, ink or coating system, storage time and process conditions |
Optical properties | Haze, light transmission and gloss confirmed by grade and agreed test method |
Mechanical properties | Tensile strength, stiffness, thickness uniformity and dimensional stability confirmed by grade and test method |
Heat stability | Standard or heat-stabilized grade; confirm shrinkage by temperature and dwell time |
Width and roll length | Confirm by equipment, thickness and winding condition |
Core size and winding direction | Confirm according to converting equipment |
Slitting quality | Width tolerance, slit-edge cleanliness, roll flatness and winding quality to confirm |
Sheet supply | Width, length, flatness and interleaf requirement to confirm |
Process validation | Printing, coating, lamination, insulation, die-cutting or laser-cutting trial where required |
Repeat-order control | Approved sample, retained sample, treated-side record and batch traceability |
As a polyester PET film manufacturer, Protective Film China Company confirms the film format before production. Available items include thickness, width, roll length, core size, winding direction, finish, haze, gloss, treated side and sheet size. Retained samples and treated-side records simplify repeat-order checks.
For slit rolls, inspect width tolerance, slit-edge cleanliness, roll flatness and winding quality. For sheets, check dimensions, flatness and interleaf requirements. For die-cut parts, review edge splitting, waste removal and tool condition. For laser-cut parts, evaluate the actual polyester PET film grade, thickness, finish, cutting edge and equipment settings.
Thickness should follow the converting method. A 12um film is generally reviewed for controlled web processing, while 75um / 3 mil and 125um grades provide more body for slitting, sheeting and precision parts. Nominal thickness is only a starting point. Film grade, heat stability, finish, tool condition and part geometry should also be checked. Laser-cut projects need approval on the actual equipment.
PET refers to the polyester material. BOPET refers to PET film stretched in machine and transverse directions to improve mechanical and dimensional performance.
Confirm thickness, width, roll length or sheet size, appearance, treated side, core size, winding direction, converting route and tolerance requirements.
It is worth evaluating for elevated-temperature processing, tight print registration, printed electronics and membrane-switch conversion.
Yes. The suitable grade depends on opacity, haze, gloss, finish, ink system, coating process and treatment requirement.