Physical properties

Density ­ Volumic mass (Method A)

1.19

g/cm³

ISO 1183

Water absorption (Method 1)

0.19

%

ISO 62

Mechanical properties

Tensile strength (test type 1, speed B)

72

Mpa

ISO 527

Modulus of elasticity (test type 1, speed B)

3000

Mpa

ISO 527

Tensile elongation (test type 1, speed B)

4

%

ISO 527

Impact strength (Charpy Method )

14

KJ/m²

ISO 179/2D

Rockwell hardness (Scale M)

100

ISO 2039/2

Flexural strength

116

Mpa

ISO 178

Electrical properties

Specific resistance

10¹⁵

Ohm

DIN 53458

Volume resistance

10¹⁵

Ohm.cm

DIN 53458

Dielectric constant
a) 50 Hz
b) 0.1 Hz

3.6
2.8

DIN 53483

Thermal properties

Coefficient of lineal expansion

70.6.10^-6

K^-1

EN 2155-12

VICAT softening point

105-120

ºC

ISO 306

Deflection temperature under load (Method A, 1,8 Mpa)

105

ºC

ISO 75

Dimensional change at high temperature (contraction)

2.3

%

Anexo

Optical properties

Light transmittance
a) Total light transmittance
b) Light transmittance at 420 nm
c) Light transmittance at 420 nm after 1000 hours on the xenon

93
92.6
91.04

%

ISO 2857

Ageing under artificial light. XENOTEST

5

Grey scale

ISO 4892

Defection temperature under loal (Method A, 1,8 MPa)

105

ºC

ISO 75

Turbidity index HAZE

0.4

%

EN 2155-9

Refractive index nº (Method A)

1,492

-

ISO/R 489

CAST ACRYLIC SHEETS (PMMA)

CHEMICAL DATA SHEET

Resistant

Limited resistance

Not resistant

Olive oil
Mineral oil
Acetic acid (10%)
Chromium acid (10% solution)
Formic acid (10% water solution)
Phosphoric acid (10%)
Hydrochloric acid
Lactic acid
Nitric acid (10%)
Oxalic acid
Sulphuric acid
Distilled water
Anthracene
Sodium carbonate
Cyclohexane
Ammonium chloride
Calcium chloride
Potassium chloride
Sodium chloride
Potassium dichromate
Formaldehyde
Glycerine
Ethylene glycol
Ammonium hydroxide
Potassium hydroxide
Sodium hydroxide
Sodium hypochlorite
Mercury
Methylamine
Paraffin
Potassium permanganate
Hydrogen peroxide (3%)
Sodium thiosulphate (40%)
White spirit

Silicone oils
Ethyl alcohol (10%)
Ethyl alcohol (50%)
Isopropyl alcohol (10%)
Isopropyl alcohol (100%)
Methyl alcohol (10%)Methyl alcohol (50%)
Butyl stearate
Dibutyl phthalate
Petrol
Aviation fuel (100 octane)
N-octane
Naphthalene
Ozone

Butyl acetate
Ethyl acetate
Acetone
Acetonitrile
Glacial acetic acid
Citric acid
Chromic acid (saturated solution)
Formic acid (90%)
Phosphoric acid (95%)
Nitric acid
Tartaric acid
Allyl alcohol
Amyl alcohol
Benzyl alcohol
Ethyl alcohol (100%)
Methyl alcohol (100%)
n-butylic alcohol
Ammonia
Aniline
Benzene
Chloroform
Methyl chloride
Epichlorohydrin
Diethyl ether
Phenol
Methyl ethyl ketone
Monochlorobenzine
Naphtha
Nitrobenzene
Perchloroethylene
Hydrogen peroxide (90%)
Methyl salicylate
Carbon tetrachloride
Tetrahydrofuran
Toluene
Trichloroethane
Trichloroethylene
Xylene

Tests carried out on colourless ^® by immersion at 20ºC.

The tests of resistance to chemical agents are hard to interpret given that ^® can be affected in different ways and also the conditions of the exposure can play an important role in the final result. Therefore this table should be used as a guideline and in case of any doubt further tests should be carried out under the conditions in which ^® is going to be used.

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