S-Plastics Valox 308resin is PBT, For compounding only. Not intended for Injection Molding. Melt viscosity: 250C at 21.6 kgf is 3500-4500.
MECHANICAL | Value | Unit | Standard |
Tensile Stress, yld, Type I, 50 mm/min | 33 | MPa | ASTM D 638 |
Tensile Stress, brk, Type I, 50 mm/min | 54 | MPa | ASTM D 638 |
Tensile Strain, brk, Type I, 50 mm/min | 127 | % | ASTM D 638 |
Flexural Stress, yld, 1.3 mm/min, 50 mm span | 77 | MPa | ASTM D 790 |
Flexural Modulus, 1.3 mm/min, 50 mm span | 2150 | MPa | ASTM D 790 |
IMPACT | Value | Unit | Standard |
Izod Impact, unnotched, 23°C | 2029 | J/m | ASTM D 4812 |
Izod Impact, notched, 23°C | 64 | J/m | ASTM D 256 |
THERMAL | Value | Unit | Standard |
HDT, 0.45 MPa, 3.2 mm, unannealed | 115 | °C | ASTM D 648 |
HDT, 1.82 MPa, 3.2mm, unannealed | 45 | °C | ASTM D 648 |
PHYSICAL | Value | Unit | Standard |
Specific Gravity | 1.31 | - | ASTM D 792 |
Mold Shrinkage, flow, 3.2 mm | 1.9 - 2.1 | % | S-Plastics Method |
Mold Shrinkage, xflow, 3.2 mm | 2 - 2.2 | % | S-Plastics Method |
Melt Viscosity | 400 | Pa-s | S-Plastics Method |
Source GMD, last updated:01/05/2000 |
Parameter | ||
Compounding Extrusion | Value | Unit |
Drying Temperature | 110 - 120 | °C |
Drying Time | 4 - 6 | hrs |
Drying Time (Cumulative) | 8 | hrs |
Maximum Moisture Content | 0 | % |
Melt Temperature | 245 - 260 | °C |
Barrel - Zone 1 Temperature | 200 - 230 | °C |
Barrel - Zone 2 Temperature | 240 - 255 | °C |
Barrel - Zone 3 Temperature | 240 - 275 | °C |
Barrel - Zone 4 Temperature | 240 - 275 | °C |
Adapter Temperature | 240 - 275 | °C |
Die Temperature | 240 - 275 | °C |
Waterbath Temperature | 25 - 35 | °C |
Source GMD, last updated:01/05/2000 |
For more information please download the datasheet | |
![]() | S-Plastics Valox 308.pdf |
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