EAS Data

The following values are typical for 3mm clear acrylic sheet at nominal 24 C temperature. Tests were conducted in the extrusion direction.

 


 

Test Method & units

Std Impact

Medium Impact

High Impact

PHYSICAL PROPERTIES
Refractive Index ASTM D-542

1.49

1.49

1.49

Specific Gravity ASTM D-792

1.19

1.17

1.15

Light Transmission ASTM D-1003, Total Light %

92

91

90

Haze ASTM D-1003, %

<2

<2

<3

Rockwell Hardness ASTM D-785, (M scale)

91

68

45

MECHANICAL PROPERTIES
Tensile Strength ASTM D-638C, 0.1cm/cm/min
Initial strain rate, Max. kgf/cm2

720

490

390

Elongation at Break ASTM D-638C, %

5.5

35

50

Flexural Strength ASTM D-790C, Span-depth ratio16, Maximum kfg/cm2

1050

1010

720

Flexural Modulus kfg/cm2

32000

27000

19000

Notched Izod Impact Strength ASTM D-256C Kgf-cm/cm of notch

1.2

3.2

5.9

Falling Dart Impact Strength ASTM D-638C, (15.2cm x 15.2cm x 0.3cm
1.4kg dart w/0.64cm radius), kg-cm

14

95

136

Water Absorption ASTM D-570, %

0.3

0.4

0.4

THERMAL PROPERTIES
Deflection Temperature
Under Load, Annealed ASTM D-648, 2 C/min, 18.6 kgf/cm2

93

89

79

Vicat Softening Point ASTM D-1525, Unannealed, C
50 C/hr, 1kg

103

100

98

50 C/hr, 5kg

97

92

86

Glass Transition Temperature ASTM D-348, C

104

N/A

N/A

Continuous Service
Temperature Range C (Dependent on part “molded-in” stresses)

74-88

74-85

71-82

Shrinkage from Mold Dimension ASTM D-955 (cold mold to cold piece), %

0.2-0.6

0.3-0.6

0.3-0.8

Longitudinal Orientation
Shrinkage (150 C/20min) K-LRT1, %

5

5

5

TOLERANCES

Length

Width

Thickness

 Sheet length up to 1.5m

+3/-1.5mm

+1.5/-1.5mm

+/-5%

 Sheet length 1.5 to 4m

+10/-0mm

+5/-0mm

+/-5%

 Special sizes over 4m

+20/-0mm

+5/-0mm

+/-5%

These figures report reliable and accurate information to the best of our knowledge, however, guarantees cannot be given due the the conditions of use being beyond our control.  Sheeting applications should be considered on their merits and, if in doubt, contact York Plastic Products.

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