Test Results

Norlite® Acrylic material is manufactured using a monomer/polymer slurry method and information supplied by I.C.I. Darwen (Perspex Divn.)

The end product (polymethylmethacrylate) conforms closely in composition to "Perspex". Although essentially the same there is a difference due to the method of manufacture. We use additives to aid machining and give slightly more flexibility.

TEST RESULTS

TEST

Impact Strength

Refractive Index

Water Absorption

Compressive Deformation

Tensile Strength

Elongation @ break

Tensile Modulus

Compressive Strength

Compressive Modulus

Shear Strength

Rockwell Hardness

Flexural Strength

Specific Gravity

UV Transmittance
Wavelength mm
290
300
310
320
330

Clarity

Thermal Expansion
Temperature ºC
-40
-29
-18
-7
4
16

 UNITS

J/m

%

%

MPa

%

MPa

MPa

MPa

MPa

MPa


%




-1 -5
ºC x 10





 RESULT

16 (mean)

1.492 (mean)

0.25 (mean)

0.66 (mean)

58.9 (mean)

2.6 (mean)

3310 (mean)

106 (mean)

3390 (mean)

63.2 (mean)

99 (mean)

106 (mean)

1.192 (mean)



0.4
4.2
43.2
57.9
64.7

Passed readability test



4.7 (mean)
5.6 (mean)
6.0 (mean)
6.0 (mean)
6.7 (mean)
7.0 (mean)


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