Physical Properties
| Item |
Unit |
Value |
| Density (ρ) |
Kg/m³ |
1.18 |
| Light Transmission |
% |
92 |
| Water Absorption@23°C,24hrs |
% |
0.2-0.4 |
| Refractive Index (n) |
- |
1.4914 |
Mechanical Properties
| Item |
Unit |
Value |
| Tensile strength (σt) |
MPa |
69-72 |
| Elongation (ε) @ break |
% |
4-4.2 |
| Izod impact strength |
KJ/m |
10-15 |
| Flexural Strength |
MPa |
125 |
Thermal Properties
| Item |
Unit |
Value |
| Thermal deformation temperature |
°C |
95 |
| Coefficient of Linear Thermal Expansion (α) |
K |
65-70 × 10-6 |
| Thermal conductivity (k) |
W/(m·K) |
0.19-0.22 |
Electrical Properties
| Item |
Unit |
Value |
|
kV/mm |
30 |
| Dielectric constant (εr) @ 1 MHz |
- |
2.9 |
Chemical Resistance
| Item |
Value |
| Acids - Concentrated |
Poor |
| Acids - Diluted |
Good |
| Alcohols |
Poor |
| Alkalis |
Limited |
| Aromatic Hydrocarbons |
Poor |
| Mineral Oils |
Excellent |
| Halogenates HydroCarbons |
Poor |
| Aliphatic HydroCarbons |
Good |
| Ketones |
Poor |
| Aldehydes |
Good |
| Esters |
Poor |
| Ketones |
Poor |
| Oxidizing Agents |
Poor |
| Vegetable Oils |
Poor |
** Excellent (no attack) **Good (minor attack) ** Limited (moderate attack and suitable for short term use only) ** Poor (not recommended for use)
Disclaimer: the above properties data comply with international specifications for the raw material of PMMA. It is posted as general information and Gawad Plastics is not the initiator of such data and not liable for it by any means.
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