What is TPU
TPU (Thermoplastic Polyurethane)
TPU stands for Thermoplastic Polyurethane.
In the 40s German manufactured polyurethane adhesives, and not until 50s a series of reports on PU was published on papers, did the world start to have a preliminary understanding of polyurethane elastomer. A number of European countries and Japan gradually developed a variety of polyurethane products, including polyurethane foam and coatings .
From 70s to 80s, there were more than 300 brands of polyurethane products , such as series injection molding, water polyurethane, flexible polyurethane foams, coatings, adhesives, and waterproof polyurethane products were all new materials developed in that period. After years of continuing national and institutional research and development TPU had increasingly become diverse and adopted in a range of applications, the strength and durability of material also had substantial improvement. TPU, whose physical properties is a polymer between plastic and rubber is made through a variety of different types of production procedures. You can find TPU is used artificial leather, fiber, and adhesive agent. The wide range of applications extends from everyday industry to defense industry and medical and health supplies.
[ The Future ]
As people look to take better care of the Environment by choosing Greener alternatives, TPU is growing in use. It is a healthy alternative to PVC. Because of this reason, many European Union countries have started limiting PVC.
TPU is bound to replace PVC and become the World's most widely used environmentally friendly polymer material in the future.
[ Properties of Polyester based and Polyether based TPU ]
  TPU(ESTER) TPU(ETHER)
Hydrolysis Over 48hrs Over 150hrs
Tensile Strength Over 250 Kg/cm2 Over 200 Kg/cm2
Tear resistance Over 100 Kg/cm2 Over 90 Kg/cm2
Hardness 70A~90A 70A~90A
¡° Hydrolysis test methods: Soaked in 10% NaOH aqueous solution / 80¢J
[Comparison of TPU Foam Composite Film and TPU Film ]
  TPU Foam Composite Film TPU Film
Production equipment Calendar mill + Foaming furnace Embossed Extruding Roller machine
Thickness 0.8mm ~ 3.0mm 0.1mm~2.0mm
Density Low High
Texture Excellent Inferior
Flaking Excellent Inferior
Production temperature Low Higher
Earth Friendly Very Yes
[ TPU Film Testing ]
Test Method: Mitsubishi ES-X60450
Test Test Methods Test values Standard Unit
Knitted Fabric

(N/30mm)
Tensile strength

MD 4.6 512 Over 196
CD 104 Over 98

Elongation (%)

MD 4.6 35 Over 25
CD 217 Over 110

Tear strengt (N)

MD 4.9 68 Over 14.7
CD 49 Over 14.7

Peel strength
(N/30mm)

MD 4.10 46 Over 19.6
CD 41 Over 19.6

Rupture strength (Mpa)

4.20 1.75 Over 0.69
Flame resistance test MVSS 302 Passed  
Weathering Test
(75¢J¡BHumidity95%)
Jungle hydrolysis Over 8 weeks One test week is equivalent to
1 normal environment year