TPU vs EPU vs PET, Which is the Suitable Selection for Your Shop

For distributors and retailers using screen protector cutting machines to reduce inventory, the wide range of material options—like TPU, EPU, and PET—can be confusing. At rock space, we understand this challenge. This guide will explain their unique strengths, and show you how our integrated solutions can simplify your inventory and boost your profits.

Understanding the Core Materials: TPU, EPU, and PET

Choosing the right film starts with understanding its DNA. Here’s a breakdown of the three pillars of modern screen protection:

TPU Film (Thermoplastic Polyurethane): The Reliable Standard

TPU is the foundation of flexible protection. Known for its softness, thin profile, and excellent elasticity, it offers reliable performance at a compelling price point. It offers seamless, full-screen coverage — a key advantage for curved displays. And minor scuffs and micro-scratches can disappear within 24 hours, keeping the screen looking new. Drawing from its origins in high-end aerospace applications, TPU is valued for its reliable protection, making it the preferred choice for high-volume retailers and value-focused customers. (While TPH is more economical, it falls short in optical clarity and long-term durability.

EPU Film (Enhanced Polyurethane): The Self-healing Evolution

EPU material is engineered with an enhanced self-healing coating that repairs scratches dramatically faster—in as quick as one second. Furthermore, its advanced anti-curling property ensures the film lays flat and resists lifting at the edges over time. This means a pristine, "like-new" look that lasts, making it ideal for customers who value long-term durability and a premium service tier.
 

PET Film (Polyethylene Terephthalate): The Hardened Shield

This category is for customers seeking the higher level of scratch resistance in a flexible format. PET films start as a flexible sheet. rock space offer two main types: some require UV curing to chemically harden and achieve up to 9H hardness (Such as UV Armor 9H Hybrid Glass Film), and some are pre-manufactured to be inherently rigid and require no curing (Such as Super Tough 7H HD Hybrid Glass Film), they both provide a sensation very close to real glass, high anti-scratch performance and a smooth, premium glide.

Detailed Comparison & Strategic Application Guide

To make the best choice for each customer, consider this comparative analysis:

How to Successfully Promote and Sell Different Films in Your Shop?

Create a Tiered Service Menu: Offer tiered protection by material: Present TPU (ultra-thin and crystal clear), EPU (1 second self-repair), and PET (high hardness) and their ideal customer scenarios.

Demonstrate the Difference: Visuals sell. Keep sample pieces on hand. Show customers how an EPU film self-heals a scratch instantly versus a standard film. Let them feel the smooth, hard surface of a cured PET film compared to a soft TPU. This tangible proof builds value and justifies price differences.

Build Profitable Service Bundles: Increase your average transaction value by creating packages. Offer a "Complete Device Protection" bundle that includes a front film and a matching back film. For the ultimate customization, combine a screen protector with a custom-printed phone case using our rock space heat transfer machine, creating a unique, high-margin service.

Leverage the Power of On-Demand Cutting: With a rock space cutting plotter, you break free from pre-cut inventory limits. Every walk-in customer represents a direct sales opportunity. This “unlimited SKU” capability, paired with a range of film options, allows you to serve anyone instantly—building trust and showcasing professionalism on the spot.

Conclusion & Your Next Step to Success

There is no single best screen protector material—only the best material for a specific customer and device. By mastering the properties of TPU, EPU, and PET, you equip your team to make expert recommendations for customers.

At rock space, we provide more than just films; we provide the complete Cellphone Beautify ecosystem. From our range of high-performance films (Flexible HD Film, EPU self-healing films, UV Glass-like Films) to our smart cutters and application tools, we give you everything needed to offer a superior, efficient, and highly profitable screen protection service.

Ready to streamline your inventory and empower your sales? Contact rock space today to request material samples, get detailed information on our cutting machines, and learn how our front film + back film combo packages or film + custom case bundles can transform your shop's revenue. Let's build your perfect product portfolio together.