| Pomulux Acetal Property Data Sheet | ||||
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| Physical Properties | Metric | English | Comments | |
| Density | 1.41 g/cc | 0.0509 lb/in� | ASTM D792 | |
| Water Absorption | 0.22 % | 0.22 % | ASTM D570; 24 hrs. | |
Mechanical Properties |
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| Hardness, Rockwell M | 80 | 80 | ASTM D7852 | |
| Tensile Strength @ Yield | 60.7 MPa | 8800 psi | ASTM D638 | |
| Elongation at Break | 75 % | 75 % | ASTM D638 | |
| Tensile Modulus | 2.83 GPa | 410 ksi | ASTM D638 | |
| Flexural Modulus | 2.59 GPa | 375 ksi | ASTM D790 | |
| Compressive Strength | 110 MPa | 16000 psi | ASTM D695; at 10% Deflection | |
| Izod Impact, Notched | 0.801 J/cm | 1.5 ft-lb/in | ASTM D256 | |
Electrical Properties |
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| Dielectric Constant | 3.8 | 3.8 | ASTM D150; at 60Hz | |
Thermal Properties |
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| CTE, linear 68F | 84.6 m/m-C | 47 in/in-F | ASTM D696 | |
| Thermal Conductivity | 0.231 W/m-K | 1.6 BTU-in/hr-ft�-°F | ASTM C177 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 157C | 315 F | ASTM D648 | |
| Deflection Temperature at 1.8 MPa (264 psi) | 104°C | 219F | ASTM D648 | |
| Flammability, UL94 | HB | HB | at 0.060 | |
Typical Chemical Resistant Data
| CHEMICAL
PROPERTIES |
ENGLISH
VALUES |
COMMENTS |
METRIC VALUES |
| Water
Absorption Immersion, 24 hr., % |
0.3 |
ASTM
D570 |
0.3 % |
| Water
Absorption Immersion Sat, % |
0.6 |
ASTM
D570 |
0.6 % |
| Acids,
Weak (acetic, dilute HCl) |
3 |
Acceptable
Service |
3 |
| Acids,
Strong (conc. HCl or sulfuric) |
1 |
Unnacceptable |
1 |
| Alkalies,
Weak (dilute NaOH) |
3 |
Acceptable
Service |
3 |
| Alkalies,
Strong (conc. NaOH) |
1 |
Unnacceptable |
1 |
| Hydrocarbons,
Aromatic (toluene) |
1 |
Unnacceptable |
1 |
| Hydrocarbons,
Aliphatic (gasoline) |
2 |
Limited
Service |
2 |
| Ketones,
Esters (acetone) |
1 |
Unnacceptable |
1 |
| Ethers
(diethyl ether, THF) |
2 |
Limited
Service |
2 |
| Chlorinated
Solvents (methylene chloride) |
1 |
Unnacceptable |
1 |
| Alcohols
(methanol, anti-freeze) |
3 |
Acceptable
Service |
3 |
| Inorganic
Salt Solutions (NaCl, KCl) |
3 |
Acceptable
Service |
3 |
| Continuous
Sunlight |
2 |
Limited
Service |
2 |
| Steam |
3 |
Acceptable
Service |
3 |