Introduction
As a clear phone case manufacturer, YG understands the growing demand for high-performance, reasonably priced, and aesthetically flawless transparent cell phone cases. Brands in both the United States and Europe are facing a dilemma: how to strike a balance between military-grade drop protection, anti-yellowing clarity, and low-cost small-batch production. Here is our solution.
The Problem: Why do many transparent phone cases fail
- Pure PC or TPU designs have low durability
- Hard PC phone cases are prone to cracking upon impact, while ordinary TPU phone cases will turn yellow within a few months.
- Customer demand: A PC and TPU hybrid phone case that lasts 2+ years without yellowing.
- Expensive customization for small brands
- The traditional double-shot molding is expensive and only suitable for mass production of a single model. An order of 1,000 units is not profitable.
- Mobile phone case surface fingerprint, oil problem
- Standard PC phone case material absorbs oil and is prone to fingerprint adhesion, so they need to be cleaned every day.
YG’s Solution: Innovative Design of Hybrid Materials
Why Choose a PC + TPU Hybrid?
- PC Backplate (2.0mm): Provides crystal-clear transparency and scratch resistance to the back of the phone case.
- TPU Bumper (2.0mm): High elastic material frame design absorbs 90% of impact energy (test 1.8m drop).
PC + TPU hybrid design combines the advantages of the two materials at the same time, and avoids the problem that a hard PC phone case is easy to break when disassembled and assembled.
Is there a risk of yellowing for TPU? YG’s anti-yellowing TPU can effectively prevent the yellowing of transparent phone case frames through advanced material science and phone case manufacturing processes.
Core Innovation 1: IML Technology for Anti-Fingerprint Surfaces
Through IML technology will double the processed PET film on the PC back. Effect: The fingerprints are 85% less than those of a standard PC case.
We add a hardening coating on one side of the PET film to further enhance the surface hardness and scratch resistance of the phone case. One side is coated with AF, providing a smoother touch and anti-fingerprint effect.
Core Innovation 2: Insert Molding for Cost Efficiency
- What is insert molding? This is a process of placing prefabricated parts (such as PC backplanes) into molds and injecting molten TPU around them.
- The advantages of YG: The cost of single-mold production is 30% lower than that of dual-mold production.
→ Ideal orders of 1,000 to 5,000 units with a delivery time of 15 days.
Core Production Steps:
Stage 1: Fabrication of the IML-Bonded PC backplane
- UV-treated PET film + 2.0mm PC sheet → 150°C thermal fusion.
- By injection molding equipment and PC back to take out by the automation of mechanical arm, by a quality engineer to check back again, with thin film to prevent from dust.
Stage 2: TPU Bumper Integration via Insert Molding
- Place PC backplate into mold → Inject 215°C liquid TPU → Cool for 45 seconds.
Stage 3: Post-process and quality control
- Deburring: Remove 0.05mm excess material for seamless edges.
- Rigorous testing: 5,000+ abrasion cycles, 72-hour UV exposure, and 1.8m multi-angle drops.
Results: Metrics That Matter to Brands
- 92% Light Transmittance (vs. 85% industry average).
- 0.28% Defect Rate (ISO 9001-certified production).
- 22% Lower Production Costs per unit than dual-material methods.
Client Testimonial
“YG’s PC and TPU hybrid phone case gave us a 40% cost reduction for 1,000-unit orders. The insert molding solutions are perfect for startups!”
— David R., Founder of UrbanGear (U.S. Accessories Brand)
Why Partner With YG?
- Flexibility of small orders
- The MOQ is 1000 pieces, and the samples can be turned around within 72 hours.
- Top-quality phone case materials
- Medical-grade PC phone case material + anti-yellowing TPU. Provide the best TPU and pc hybrid phone case.
- End-to-End Service
- We offer ODM solutions and provide one-stop services from design to delivery.
Start your project today. Get your free quote →
