Product Overview

12μm Metallized BOPET Film is a lightweight, high-performance polyester film developed for flexible packaging, lamination, printing, and industrial applications where strength, appearance, and barrier protection need to work together.

The film uses a 12μm biaxially oriented polyethylene terephthalate (BOPET) substrate with a precisely deposited aluminum layer. The thin PET base helps achieve efficient material usage while retaining the dimensional stability and mechanical strength associated with polyester film. The metallized surface adds a reflective metallic appearance and improves protection against light, moisture, and oxygen. Metallized BOPET is widely used in flexible packaging and lamination structures because PET provides strong mechanical properties and the metallized layer contributes additional barrier performance.

For packaging converters, 12μm is a practical gauge when balancing film performance, material consumption, roll yield, and production efficiency. Depending on the final structure, the film can be supplied with different surface treatments to improve metal adhesion, printing, or lamination performance.

Why 12μm Metallized BOPET?

Choosing film thickness is not simply a matter of using a thinner material. The substrate must still provide sufficient mechanical stability for converting, transportation, and final packaging.

The 12μm BOPET structure provides a useful balance between lightweight construction and reliable film handling. Commercial metallized BOPET products are available in 12μm grades for flexible packaging and other converting applications, while different metallization and surface-treatment options can be selected according to the required performance.

For large-volume packaging production, this balance can translate into better material utilization without moving directly to a much thicker polyester substrate.

Key Product Features

• Lightweight 12μm Structure

The 12μm thickness helps reduce unnecessary material usage while maintaining the basic mechanical advantages of BOPET. It is particularly suitable for packaging structures where weight and material efficiency are important.

• Strong Dimensional Stability

BOPET provides good dimensional stability during printing, laminating, slitting, and other converting processes. This helps maintain more consistent web tracking and roll handling.

• Improved Barrier Performance

The aluminum metallization creates an additional barrier against light, moisture, and oxygen. Actual OTR and WVTR performance depends on metallization quality, film structure, and test conditions, so application-specific specifications should be confirmed before production. Commercial technical data for 12μm metallized BOPET demonstrates the barrier improvement achievable through metallization.

• High-Gloss Metallic Appearance

The reflective silver surface gives packaging a bright, clean appearance while also helping reduce light transmission.

• Good Metal Adhesion

Surface treatment can be selected to improve bonding between the aluminum layer and polyester substrate. Chemical-coated and corona-treated grades are commercially used where higher metal adhesion and lamination performance are required.

• Excellent Converting Compatibility

The film can be processed through printing, adhesive lamination, slitting, and other downstream operations when matched with the appropriate grade.

Product Specifications

Item	Typical Specification
Product Name	12μm Metallized BOPET Film
Base Material	Biaxially Oriented PET
Nominal Thickness	12μm
Metallization	Vacuum Aluminum Metallization
Maximum Width(after coated PE)	1550mm
Wrinkle	0 (Strip/m)
Thickness Tolerance	±3%
Appearance	Bright Silver / Metallic
Surface Treatment	Untreated / Corona / Chemical Coated
Optical Density	Available in different grades
Barrier Performance	Moisture, Oxygen & Light Barrier
Width	Customized
Film Surface Tension	≥52(mN/m)
Roll Length	Customized
Processing	Printing, Lamination, Slitting
Application	Flexible Packaging & Industrial Converting

Specifications can be adjusted according to the final application. Barrier values, optical density, adhesion, and surface treatment should be confirmed against the applicable technical datasheet and test conditions.

Performance Advantages

• Efficient Material Utilization

For high-volume packaging, film thickness has a direct influence on material consumption. A 12μm structure provides an opportunity to optimize packaging weight while retaining the mechanical advantages of BOPET.

• Reliable Barrier Layer

The metallized aluminum layer provides additional protection compared with uncoated PET. This makes the film suitable for packaging products that require greater resistance to light, moisture, and oxygen.

• Better Packaging Appearance

The reflective silver surface creates a clean metallic effect that works well with printed graphics, helping packaging achieve a more distinctive appearance.

• Stable Lamination Base

BOPET is commonly used as a structural layer in flexible packaging because of its mechanical strength and dimensional stability. Metallized versions are also commercially offered for lamination applications.

• Flexible Specification Options

The 12μm film can be configured with different treatments and metallization levels according to whether the priority is standard barrier performance, higher adhesion, printing, or demanding laminate construction.

Application Areas

Building Insulation

Metallized BOPET can help reduce radiant heat transfer through its reflective, low-emissivity surface. When incorporated into insulation systems with suitable air spaces and other insulating layers, it can support thermal efficiency in residential, commercial, industrial, and agricultural buildings.

Agricultural Applications

Metallized film can support modern agricultural applications by reflecting sunlight, improving thermal insulation, and helping regulate the light and temperature environment around crops. High-reflectivity metallized films can improve light distribution, while reflective mulch films and agricultural protection systems can support photosynthesis, fruit coloring, and earlier ripening. Their lightweight structure and weather resistance also make them suitable for greenhouse and crop protection applications.

Flexible Food Packaging

Suitable for snack foods, confectionery, coffee, tea, dry foods, and other products requiring protection from environmental exposure. Metallized polyester is widely used in food packaging and laminate structures.

Coffee & Tea Packaging

The metallic barrier layer can help limit light and atmospheric exposure while the PET substrate provides structural support for laminated packaging.

Decorative Packaging

The bright metallic appearance can be combined with printed designs for gift packaging, seasonal products, promotional packaging, and premium consumer goods.

Lamination Structures

12μm Metallized BOPET can serve as a functional outer or intermediate layer in composite structures with PE, CPP, BOPP, and other packaging films.

Industrial Applications

The combination of mechanical strength, dimensional stability, and reflective performance also makes metallized BOPET useful in selected industrial and technical applications.

Common Customer Challenges

High Material Consumption

Using an unnecessarily thick polyester substrate can increase packaging material costs.

Solution: A 12μm structure provides a lightweight option for applications where this gauge meets the required mechanical and converting performance.

Insufficient Light Protection

Transparent films alone may not provide adequate protection for light-sensitive products.

Solution: The aluminum layer adds a reflective barrier that significantly reduces light transmission.

Unstable Metallization

Poor aluminum adhesion can lead to metal transfer or performance loss during converting.

Solution: Appropriate corona or chemical surface treatment can improve metal-to-film adhesion for demanding structures.

Packaging Structure Is Too Complex

Multiple material layers can increase production and procurement complexity.

Solution: A well-designed metallized BOPET laminate can combine structural support, visual effect, and barrier functionality within a relatively thin layer.

Why Choose Taiwangte New Material?

• 12μm Specialized Supply — Focused on practical packaging-grade metallized BOPET solutions.
• Customized Metallization — Different optical density and surface treatment options can be developed according to application requirements.
• OEM & Wholesale Orders — Suitable for converters, distributors, packaging manufacturers, and long-term bulk purchasing.
• Factory-Direct Pricing — Direct manufacturing helps provide competitive prices for volume orders.
• Quality Control — Film appearance, thickness consistency, metallization quality, adhesion, and mechanical performance can be monitored throughout production.
• Technical Support — Professional assistance with film selection, lamination structure, processing requirements, and customized specifications.
• After-Sales Service — Continued communication helps resolve application issues and maintain stable long-term supply.

FAQ

What is your MOQ for metallized films?

MOQ is I ton per item for PET-based metallized fims. For other fim types, please contact us for specific MOQ requirements.

What’s your typical lead time?

Standard orders: 7–15 days. Custom orders (non-standard thickness, width, or metallization spec): 20–30 days. Lead time starts from order confirmation and deposit receipt.

What is 12μm Metallized BOPET Film used for?

12μm Metallized BOPET Film is commonly used as a barrier and support layer in flexible packaging, lamination, food packaging, industrial packaging, and decorative applications. The aluminum layer helps improve protection against moisture, oxygen, and light while maintaining the mechanical strength and dimensional stability of BOPET.

Why choose 12μm Metallized BOPET Film instead of thicker film?

12μm provides a practical balance between material consumption, mechanical performance, barrier protection, and converting efficiency. Its relatively low thickness can help reduce material usage while providing sufficient strength for many laminated packaging structures. The final film selection should be based on the required barrier level, packaging structure, and processing conditions.

Can 12μm Metallized BOPET Film be laminated with PE, CPP, or other films?

Yes. 12μm Metallized BOPET Film is widely used as part of multilayer flexible packaging structures. It can be laminated with materials such as PE, CPP, BOPP, or other functional films depending on the required sealing, barrier, stiffness, and processing performance. Surface treatment and adhesive selection should be matched to the specific converting process.

Does 12μm Metallized BOPET Film provide high barrier performance?

Metallization can significantly improve the barrier performance of BOPET against moisture, oxygen, and light. However, actual OTR and WVTR performance varies according to aluminum coating quality, optical density, surface treatment, laminate structure, and test conditions. Different grades can therefore be selected for standard or higher-barrier applications.

Can Taiwangte customize 12μm Metallized BOPET Film?

Yes. 12μm Metallized BOPET Film can be supplied according to application and converting requirements, including roll specifications, surface treatment, metallization performance, and packaging requirements. For bulk orders, the recommended grade can be selected according to the target barrier level, lamination process, printing requirements, and end-use application.