TPU interlayer, hot melt interlayer

Argotec SKU Number

ST-6050 25mil

Typical application

Glass lamination optical interlayer film

Polymer

Thermoplastic polyurethane, aliphatic polyether

Extrusion method

Flat die

Gauge

 25mil

Width

Up to 80 inches (2.032 meters)

Length

Up to 80 non-spliced yards (73.15 meters)

Key attributes

鈻?Eliminates need for glass surface primer

鈻?Clear, non-yellowing

鈻?Contains additive package for UV resistance

Typical Properties

Test Method

Value

Durometer

ASTM D-2240

70A

Specific gravity

ASTM D-792

1.08

Tensile strength @ 100%

450 psi (3.10 MPa)

ASTM D-638

Tensile strength @ 200%

760 psi (5.24 MPa)

(Die-IV used with

Tensile strength @ 300%

1775 psi (12.24 MPa)

grip separation rate

of 20-in./min. on

Tensile strength @ break

6500 psi (44.82 MPa)

SU 50-mil film)

Elongation @ break

400%

Tear strength

ASTM D-624

300 pli (52.50 kN/m)

DSC mid point, Tg掳C

n/a

-57

TMA peak

n/a

223掳F (106掳C)

TMA range

n/a

181-266掳F (83-130掳C)

Coefficient of thermal

n/a

~0.0002 L/Lo 掳C

expansion

Haze*

ASTM D-1003

<0.25%

Transmission*

85-95%

Yellowness index*

ASTM E-313

<1

Refractive index*

ASTM D-542

1.40

* Film tested between two pieces of 1/8-in. glass; sample size 4鈥漻4鈥漻50-mil; lamination

temp 175掳F; time & pressure: 2-min. @ 400#, 2-min. @ 600#, 2-min. @ 1000#.

Revised: February 18, 2015