The Invisible Shield
Behind Bulletproof Glass
Aliphatic TPU interlayer film engineered for high-security laminated glass — bulletproof, blast-resistant, and extreme-temperature durable.
Trusted by defense, aerospace, and automotive sectors in 60+ countries.
What Is TPU Interlayer Film?
TPU Interlayer Film is a high-performance aliphatic thermoplastic polyurethane film designed as the bonding layer between glass, polycarbonate (PC), and PMMA in laminated safety glazing. Unlike traditional PVB interlayers, TPU delivers superior impact energy absorption, extreme low-temperature flexibility, and non-yellowing optical clarity.
Our aliphatic TPU interlayer absorbs ≥60% of bullet kinetic energy while preventing glass shattering. It bonds flawlessly to glass, PC, PET, PMMA and acrylic — without any plasticizer that could corrode PC substrates.
TPU Interlayer Film — Parameter Reference
All parameters can be customized. Contact our technical team for special formulations or ballistic certifications.
| Material Base | Aliphatic TPU (non-yellowing) |
|---|---|
| Thickness Range | 0.38mm – 1.91mm (customizable) |
| Standard Thickness | 0.38 / 0.635 / 0.76 / 1.27 / 1.91 mm |
| Width | Up to 2,800 mm (standard 1,016 – 1,800 mm) |
| Roll Length | 100 m per roll (customizable) |
| Light Transmittance | ≥ 91% (optical grade) |
| Haze | ≤ 0.25% |
| Yellowing Index | ≤ 0.2 (aliphatic grade) |
| Shore Hardness | 75A (aliphatic elastomer) |
|---|---|
| Tensile Strength | ≥ 45 MPa |
| Elongation at Break | ≥ 530% |
| Tear Resistance | ≥ 72.5 kN/m |
| Peel Strength (Adhesion) | ≥ 18.6 kN/m (to glass/PC) |
| Glass Transition Temp. | ≤ -60°C |
| Working Temperature | -60°C to +120°C |
| Density | 1.06 g/cm³ |
| Compatible Substrates | Glass, PC, PMMA, PET, Acrylic |
|---|---|
| Plasticizer-Free | ✅ No PC corrosion risk |
| Lamination Process | Autoclave vacuum bag |
| Lamination Temp. (85°C) | 60 min at -100 kPa vacuum |
| Lamination Temp. (95°C) | 30 min at -100 kPa vacuum |
| Bubble-Free | ✅ No interlayer bubbles |
| Edge Seal Required | No — chemical-resistant |
| Shelf Life | ≥ 12 months (original packaging) |
| Bullet Energy Absorption | ≥ 60% kinetic energy |
|---|---|
| Anti-Spalling | ✅ Prevents glass fragmentation |
| Blast Resistance | Available per EN 13123 / EN 13541 |
| High-Speed Rail | ✅ 350 km/h windscreen certified |
| Aviation | ✅ Bird-strike test qualified |
| UV Resistance | Grade 4 — super anti-yellowing |
| Hydrolysis Resistance | Excellent (aliphatic grade) |
| RoHS / REACH | ✅ Compliant |
Where TPU Interlayer Film Protects Lives
From military armor to civilian safety — TPU interlayer is the invisible shield behind the world’s toughest glass.
Bulletproof & Security Glass
VIP vehicles, bank counters, security booths, embassies — our TPU interlayer absorbs ≥60% bullet energy, prevents spalling and glass fragmentation. 50% lighter and thinner than traditional all-glass bulletproof solutions.
- ✅ FJ79B ballistic standard qualified
- ✅ Anti-spalling — zero glass shard ejection
- ✅ Glass+PC hybrid laminate ready
Armored Vehicles & Military
Military & VIP protection vehicles rely on TPU+PC composite glass for weight savings and multi-hit capability. Certified for polar expedition vessels and arctic armored vehicles at -60°C.
High-Speed Rail & Aviation
350 km/h train windscreens and aircraft windshields — TPU+PC composite passes collision, bird-strike and extreme temperature certification.
Architectural Safety
Blast-resistant curtain walls, skylights, bank facades
Automotive Glass
Premium windshields — acoustic, UV, impact protection
Marine & Polar
Expedition ships — certified for -60°C arctic conditions
Electronics Displays
Touchscreen overlays, flexible display substrates
Sound Insulation
Office partitions — TPU blocks acoustic waves effectively
UV-Blocking Glazing
Museum display cases — Grade 4 UV protection
TPU vs. PVB — Why Security Glass Makers Are Switching
TPU interlayer (left) maintains clarity & flexibility after ballistic testing, while PVB (right) shows delamination & yellowing.
| Property | TPU Interlayer | PVB Interlayer |
|---|---|---|
| Low-Temp Flexibility | ≤ -60°C ✅ | Brittle below -20°C ❌ |
| Yellowing Resistance | Aliphatic — non-yellowing ✅ | Yellows over time ❌ |
| PC Bonding | Strong, no corrosion ✅ | Plasticizer corrodes PC ❌ |
| Bullet Energy Absorption | ≥60% ✅ | ≈30-40% ⚠ |
| Edge Seal Requirement | No edge seal needed ✅ | Requires edge sealing ❌ |
| Moisture Sensitivity | Low — chemical resistant ✅ | High — delamination risk ❌ |
| Multi-Material Bonding | Glass+PC+PMMA+PET ✅ | Glass only ⚠ |
| Weight / Thickness | 50% lighter & thinner ✅ | Heavier & thicker ❌ |
Core Advantages That Set Us Apart
01 Superior Ballistic Protection
Absorbs ≥60% of bullet kinetic energy. TPU’s elastomeric nature stretches under impact, trapping projectiles and preventing glass fragmentation — zero spalling, zero glass shard ejection.
- ✅ FJ79B ballistic standard qualified
- ✅ Blast-resistant per EN 13123/13541
- ✅ Multi-hit capability with glass+PC hybrid
02 Extreme Cold & Non-Yellowing
Glass transition ≤ -60°C. Aliphatic TPU remains flexible in arctic conditions and delivers lifelong optical clarity — haze ≤0.25%, yellowing index ≤0.2, even after decades of UV exposure.
- ✅ No brittleness at -60°C — polar vessel certified
- ✅ Grade 4 UV resistance, no plasticizer migration
- ✅ Optical clarity preserved 20+ years
03 Universal Bonding & Easy Processing
Strong adhesion to glass, PC, PMMA, PET and acrylic — no plasticizer, no PC corrosion. Designed for autoclave vacuum-bag lamination with easy vacuum exhaust and bubble-free results.
- ✅ Peel strength ≥ 18.6 kN/m
- ✅ Edge-seal not required — chemical-resistant
- ✅ 85°C/60min or 95°C/30min lamination
8,500 m² Production Base · Dedicated R&D Lab
Our integrated factory ensures consistent ballistic-grade quality from raw material to finished roll.
Full Customization for Every Security Glass Project
From TPU resin formulation to final roll specifications — we tailor every parameter to your exact ballistic and optical requirements.
0.38mm to 1.91mm — 5 standard gauges + custom available
Up to 2,800mm wide, roll length customizable, sheet cut to size
NIJ Level I–III, EN 13123/13541, custom certification support
Glass-only, Glass+PC hybrid, Glass+PMMA+PET combo
Aliphatic TPU standard, custom hardness 65A–85A, special UV formulations
UV-blocking grade, sound insulation enhanced, anti-fog coating
PE core / carton box / pallet, vacuum pack, private label
ISO 9001, SGS, REACH/RoHS, ballistic test reports
Quality Assurance & On-Time Delivery
From raw material to your door — every step is controlled and documented.
Quality Control
Multi-stage inspections backed by a certified lab.
- Raw material testing (purity, MFI, density)
- In-process thickness & optical monitoring
- Peel strength & adhesion testing
- Low-temp flexibility testing (-60°C)
- Ballistic sample testing per customer standard
- Final shipment QC & COA report
Production Capacity
High throughput lines for any order volume.
- Monthly capacity: 500+ tons TPU film
- Dedicated aliphatic TPU interlayer lines
- Clean room zones for optical-grade film
- Automated slitting & rewinding
- Stock program for fast-moving specs
- Rush order capability available
Delivery Guarantee
98% on-time delivery rate.
- Sample orders: 3–5 business days
- Standard orders: 7–15 business days
- Express production available
- DHL, FedEx, UPS, sea freight
- Real-time shipment tracking
- Insurance & export docs included
Our Order-to-Delivery Process
Inquiry & Specs
Ballistic level & glass structure
Formulation
R&D confirms TPU grade & thickness
Sample
Trial lamination & ballistic testing
Production
Mass production with in-line QC
Inspection
100% roll QC & COA issuance
Shipment
On-time dispatch with logistics
Let’s Talk About Your Security Glass Project
Shanghai Functech Tech Co., Ltd.
上海寰亘新材料科抨有限公司
Professional TPU film manufacturer since 2009.
