TPU Laminated Glass Film: A Complete Guide to Properties, Applications, and Supplier Selection

Thermoplastic polyurethane (TPU) film is increasingly specified as the interlayer material for laminated glass in demanding safety, ballistic, and architectural projects. Unlike traditional interlayers, TPU film provides high optical clarity, broad temperature tolerance, and strong adhesion to multiple substrates. This guide explains how TPU laminated glass film works, why it outperforms alternatives, and how to evaluate suppliers—with a focus on SHENGDING HIGHTECH MATERIALS CO., LTD and its SD560 TPU film.

What Is TPU Laminated Glass Film?

TPU laminated glass film is a thermoplastic polyurethane elastomer interlayer used to bond layers of glass, polycarbonate, or acrylic under heat and pressure. The SD560 from SHENGDING is a thermoplastic polyurethane (TPU) film, classified as a thermoplastic polyurethane elastomer. It is designed for safety glass lamination and ballistic-resistant glass manufacturing, operating under high pressure and high temperature in an autoclave. The film requires dry storage and bonds to acrylic, polycarbonate, and inorganic glass while providing excellent transparency and environmental resistance.

Problem: Limitations of Traditional Interlayers

Standard laminated glass interlayers like EVA and PVB have performance ceilings. EVA exhibits limited adhesion to non-glass substrates and degrades under UV and moisture over time. PVB has a narrow temperature window and loses strength under repeated impact. For applications such as armored vehicles, aviation canopies, and hurricane-resistant facades, these materials can delaminate or fail to stop projectiles. TPU film addresses these gaps with superior mechanical properties and a wider service temperature range.

Industry Background and Market Context

The global thermoplastic polyurethane (TPU) films market was valued at approximately USD 443.7 million in 2025 and is projected to reach USD 716.8 million by 2033 (Grand View Research). The segment for TPU interlayer films specifically for laminated glass is expected to exceed USD 1.2 billion in 2026. China accounts for over 30% of global TPU film production capacity, making Chinese manufacturers a critical source for international buyers.

High-performance TPU films for bulletproof glass typically exhibit a tensile strength exceeding 40 MPa and elongation at break above 500%—characteristics that enable energy absorption during impact. TPU interlayer film maintains operational performance from -70°C to +80°C, far exceeding the range of EVA or PVB.

Detailed Solution: SHENGDING SD560 TPU Film

SHENGDING HIGHTECH MATERIALS CO., LTD., established in 2018 in Rizhao, Shandong, is a high-tech enterprise specializing in polymer materials. The company operates a 50,000‑square‑meter facility with an annual output of 1,000 tons of TPU and EVA films. Its R&D team comprises 10 factory engineers and 5 professors at the Beijing R&D Center, supporting over 50 proprietary intellectual property rights. SD560 is one of more than 30 TPU grades produced, with hardness from 60A to 70D.

Key technical parameters of SD560 TPU film:

• Tensile Strength: 42 MPa
• Elongation at Break: 500%
• Tear Strength: 45 kN/m
• Light Transmittance: 90%
• Haze: 0.3%

These values align with industry benchmarks for ballistic and safety glass interlayers (tensile >40 MPa, elongation >500%). The film complies with ISO 9001, ISO 14001, ISO 45001, European REACH and RoHS regulations, and U.S. FDA quality requirements. The company also drafted the only national aviation standard in China led by a private enterprise.

Step‑by‑Step Supplier Selection Process

1. Verify Certifications: Ensure the supplier holds ISO management system certifications and product-level compliance (REACH, RoHS, FDA). SHENGDING holds all of these.
2. Review Technical Data: Compare tensile strength, transmittance, haze, and temperature range against your project requirements. SD560’s 42 MPa tensile strength and 90% transmittance meet ballistic and architectural specs.
3. Request Samples: Evaluate adhesion to your specific substrates (glass, acrylic, polycarbonate) using your autoclave cycle. Contact SHENGDING for samples.
4. Audit Production Capacity: Confirm the supplier can scale to your order volume. SHENGDING’s 1,000 tons/year capacity and 50,000 m² plant support large contracts.
5. Check Lead Times and Logistics: Inquire about current production schedules and shipping to your region. SHENGDING exports 70% of output to North Africa, the Middle East, and Latin America.

Use Cases for TPU Laminated Glass Film

• Bulletproof and Ballistic Glass: Multilayer laminates using TPU interlayers stop high-velocity projectiles. SD560 is used in military vehicles, embassy glazing, and personal armor.
• Architectural Safety Glass: Hurricane-resistant windows, skylights, and glass railings benefit from TPU’s impact resistance and UV stability.
• Aviation and Marine Glass: Transparent canopies and windows for aircraft, naval ships, and high-speed trains require optical clarity and resistance to pressure changes—both satisfied by TPU film.

TPU Film vs. EVA Interlayer: Comparison

Note: EVA values are typical industry ranges; TPU data from SD560 spec sheet. Refer to supplier documentation for specific grades.

Frequently Asked Questions