Tech Support: Materials
SLA Resins
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ACRYLIC, GENERAL PURPOSE
PHYSICAL PROPERTIES
| Density |
0.0415-0.043 lb/in3 |
| Water Absorption |
.3-2 % |
| Moisture Absorption at Equilibrium |
0.3-0.33 % |
| Linear Mold Shrinkage |
0.003-0.0065 in/in |
| Melt Flow |
0.9-27 g/10 min |
MECHANICAL PROPERTIES
| Hardness, Rockwell M |
63-97 |
| Tensile Strength, Ultimate |
6820-11500 psi |
| Tensile Strength, Yield |
7980-12300 psi |
| Elongation @ break |
1-30 % |
| Elongation @ Yield |
4-5 % |
| Tensile Modulus |
319-551 ksi |
| Flexural Modulus |
435-508 ksi |
| Flexural Yield Strength |
11700-20000 psi |
| Compressive Yield Strength |
14500-17000 psi |
| Shear Modulus |
203 ksi |
| Izod Impact, Notched |
0.225- 0.375 ft-lb/in |
| Izod Impact, Unnotched |
5.06 ft-lb/in |
| Charpy Impact, Unnotched |
9.04-28.6 ft-lb/in2 |
| Charpy Impact, Notched |
0.952-1.9 ft-lb/in² |
| Gardner Impact |
0.17-1.03 ft-lb |
| Tensile Creep Modulus, 1 hour |
261000-392000 psi |
| Tensile Creep Modulus, 1000 hours |
174000-261000 psi |
ELECTRICAL PROPERTIES
| Electrical Resistivity |
1E+14-1E+15 ohm-cm |
| Dielectric Constant |
2.8-4 |
| Dielectric Constant, Low Frequency |
3-4 |
| Dielectric Strength |
450-1520 kV/in |
| Dissipation Factor |
0.03-0.55 |
| Dissipatin Factor, Low Frequency |
0.05-0.55 |
| Surface Resistance |
1E+14-1E+16 ohm |
| Comparative Tracking Index |
600 V |
THERMAL PROPERTIES
| CTE, linear 200 C |
33.3-72.2 µ in/in-°F |
| Heat Capacity |
0.349-0.351 BTU/lb-°F |
| Thermal Conductivity |
1.32-1.67 BTU-in/hr-ft²-°F |
| Melting Point |
266°F |
| Maximum Service Temperature, Air |
106-217°F |
| Deflection Temperature at 0.46 MPa |
176-217°F |
| Deflection Temperature at 1.8 MPa |
106-212°F |
| Vicat Softening Point |
117-243°F |
| Glass Temperature |
212-221°F |
| Flammability, UL94 |
HB |
| Oxygen Index |
18% |
OPTICAL PROPERTIES
| Refractive Index |
1.49-1.498 |
| Haze |
1-96% |
| Transmission, Visible |
80-93% |
PROCESSING PROPERTIES
| Processing Temperature |
469-482°F |
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