Advanced Functional Films & High-Performance Materials

GusTek (Mianyang Prochema) is a trusted global manufacturer of EMI RFID shielding film, ITO PET conductive film, textured HC PET, synthetic paper, fluoroplastic products, PEEK materials, and perfluorinated ion exchange membranes — engineered for innovation and reliability.

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EMI & RFID Shielding

Protect sensitive electronics with high-efficiency conductive shielding films.

Conductive & Transparent Films

ITO PET and metal mesh films for touch panels, displays, and heating applications.

Fuel Cell & Electrolysis Membranes

PFSA perfluorinated ion exchange membranes for energy and industrial processes.

About GusTek

Mianyang Prochema Commercial Co., Ltd., operating under the brand GusTek, has been a leader in high-performance specialty films since 2004. Based in Sichuan, China, we specialize in conductive, insulation, and printing films for industrial and commercial applications worldwide.

In 2007, we expanded globally through our Hong Kong entity, Gus Industry (Hong Kong) Co., Limited, to serve international markets. By 2008, our Shenzhen factory began producing branded coated films, ensuring quality control and innovation.

Recognized as Vice Chairman of the Mianyang Commerce Association in 2016, we lead an Exporter Alliance to support global trade. During the 2020 pandemic, we non-profitly coordinated the export of critical medical supplies to over 30 countries.

18+

Years Experience

81-90%

Export Ratio

Product Categories

ISO-Certified Manufacturing

Our Product Range

From advanced conductive films to durable fluoroplastics, GusTek delivers high-performance materials engineered for reliability, efficiency, and innovation across industries.

ITO PET Conductive Film

Transparent conductive film with surface resistance as low as 30Ω, ideal for touch screens, displays, and heating elements.

• High transparency (>85%)
• Scratch-resistant coating
• Custom sheet or roll sizes

Textured HC PET Film

Hard-coated PET with anti-glare texture for premium printing, labels, and industrial overlays.

• Matte or glossy finishes
• UV and scratch resistant
• Available in 120μm and custom thicknesses

PP Synthetic Paper

Waterproof, tear-resistant synthetic paper for outdoor labels, maps, and high-durability printing.

• Offset, inkjet, and eco-solvent compatible
• Matte and glossy options
• Fast-drying barcode grade available

EMI RFID Shielding Film

Metal-coated film for blocking electromagnetic interference and securing RFID data.

• High shielding effectiveness (>60dB)
• Flexible and thin profile
• Ideal for smart cards, packaging, and electronics

PFSA Fuel Cell Membrane

Perfluorinated ion exchange membrane (N21x, N30x) for proton exchange membrane fuel cells.

• High proton conductivity
• Excellent chemical stability
• Designed for long operational life

FEP & PFA Fluoroplastic Tubes

High-temperature, chemically inert tubing for laboratory, semiconductor, and industrial applications.

• FEP heat-shrink and Bourdon tubes
• PFA welding rods and pipes
• UV-resistant and non-stick

Vanadium Flow Battery Membrane

N11x series PFSA membrane optimized for vanadium redox flow batteries.

• Low vanadium crossover
• High ion selectivity
• Stable under acidic conditions

PEEK Plastic Components

High-strength, thermally stable PEEK films, rods, tubes, and machined parts.

• Aerospace and medical grade
• Excellent wear resistance
• Custom processing available

View Full Product Catalog

Why Choose GusTek?

We combine innovation, quality, and global service to deliver materials that power your success.

Quality Certified

ISO standards, UL-certified materials, and rigorous in-house testing ensure consistent performance.

Global Exporter

Serving clients in Africa, Americas, Asia, Europe, and Oceania with reliable logistics and support.

In-House Production

Our Shenzhen factory enables tight control over coating, texturing, and quality assurance.

Customer Support

Dedicated team for technical consultation, samples, and after-sales service.

Frequently Asked Questions

What is ITO PET film used for?

ITO (Indium Tin Oxide) PET film is a transparent conductive film used in touch screens, OLED displays, EMI shielding, and defrosting heaters due to its high conductivity and optical clarity.

Can you customize film thickness and size?

Yes, we offer custom cutting, slitting, and coating services. Whether you need 120μm synthetic paper or 50μm ITO film, we can tailor dimensions and properties to your application.

Are your fluoroplastic products FDA compliant?

Many of our FEP, PFA, and PTFE products meet FDA and USP Class VI standards for food and medical applications. Please specify your requirements when inquiring.

Do you provide samples?

Yes, we offer free samples for qualified buyers. Contact us with your specifications and shipping details.

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