Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
PUR，Unspecified BJB Polyurethane WC-783 A/B BJB Enterprises, Inc.
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Plastic Datasheets
| Impact resistance | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| Impact strength of cantilever beam gap | ASTM D256 | 53 J/m |
| Supplementary Information | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| CureTime | 25°C | 5.0to7.0 day |
| hardness | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| Shore hardness | 邵氏D | ASTM D2240 | 80to84 |
| thermal performance | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| Linear coefficient of thermal expansion | -20到130°C | 9E-05 | |
| Heat Deflection Temperature | 0.45MPa,未退火，HDT | ASTM D648 | 70.0 °C |
| Mechanical properties | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| elongation | 屈服 | ASTM D638 | 65 % |
| compressive strength | ASTM D695 | 57.6 MPa | |
| Tensile modulus | ASTM D638 | 1790 MPa | |
| tensile strength | 屈服 | ASTM D638 | 45.9 MPa |
| Compression Modulus | ASTM D695 | 2410 MPa | |
| bending strength | ASTM D790 | 75.8 MPa | |
| flexural modulus | ASTM D790 | 2210 MPa |
| thermosetting | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| Thermosetting components | WorkTime5(25°C) | 15.0 min | |
| 部件A | 按重量计算的混合比:100.按容量计算的混合比:100 | ||
| DemoldTime(25°C) | 6.0to8.0 hr | ||
| 部件B | 按重量计算的混合比:90.按容量计算的混合比:93 | ||
| 贮藏期限 | 26 wk |
| Physical properties | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| density | PartA | 1.057 g/cm³ | |
| PartB | 1.027 g/cm³ | ||
| shrinkage rate | --2 | 0.20 % | |
| --3 | 0.20 % | ||
| --4 | 0.20 % | ||
| density | ASTM D792 | 1.05 g/cm³ |
| Filling analysis | Test Condition | Test Method | BJB Enterprises, Inc./BJB Polyurethane WC-783 A/B |
|---|---|---|---|
| Brookfield viscosity | Mixed:25°C | 600to700 mPa·s | |
| PartA:25°C | 550to650 mPa·s | ||
| PartB:25°C | 550 mPa·s |
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