Tuffak® Polycarbonate Technical Data

Technical Specification

PROPERTIES

TEST METHOD

UNIT

TYPICAL VALUES

TUFFAK A

TUFFAK XL

Physical

Density

DIN 53479

g/cm³

1.20

Water Absorption

ASTM D 570

0.10

0.15

Poisson's ratio

ASTM D 638

0.38

Optical

Light transmission (3mm)

ASTM D 1003

Mechanical

Tensile strength at yield

DIN 53455

Mpa

Tensile strength at break

DIN 53455

Mpa

Elongation at break

DIN 53455

100

Tensile modulus

DIN 53457

Mpa

2300

Flexural modulus

DIN 53457

Mpa

2500

Charpy impact strength (notched, 23°C)

DIN 53453

KJ/m²

Izod impact strength (notched, 23°C)

ASTM D 256

J/m

850

700

Rockwell hardness (M scale)

ASTM D 785

Thermal

Vicat softening temp, 50 N

DIN 53460

°C

153

148

HDT, 1.82 MPa

DIN 53461

°C

138

134

Coeff. of linear thermal expansion

VDE 0304/1

m/m°C

7 x 10^-5

Thermal conductivity

ASTM C 177

W/m°C

0.20

Max. continuous service temperature

°C

100

Light Transmission

Through its excellent UV protection Tuftak XL will maintain these values over an extended period of time even when exposed to direct sunlight.

Accelerated Xenon tests run on Tuftak XL for 5000 hours (corresponding to more than 10 years of outdoor exposure) show a very small changing of light transmission and yellowness index, (Tuffak XL weathering characteristic graphs)

Fire Performance and Classification

PROPERTY	NORM	FIRE CLASSIFICATION
		TUFFAK A	TUFFAK XL
Rating	UL 94	V-2 -V-0	HB V-2