BAYDUR® STR/C 675 by Covestro is a medium to high density polyurethane grade consisting of polymeric diphenylmethane diisocyanate (PMDI) and polyether polyol components. It is reinforced with 37% glass. Offers fast cure time and long gel time. It is suitable for processing by reaction injection molding (RIM). BAYDUR® STR/C 675 is used in long fiber injection (LFI) technology and large part applications.
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BAYDUR® STR/C 675 properties
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flexural Modulus | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Elongation | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Composite Thickness | 0.0 Visible After Login | Visible After Login | Visible After Login |
| De-mold Time | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| CTE, Linear | 0.0 Visible After Login | Visible After Login | Visible After Login |
BAYDUR® STR/C 675 Processing Guidelines
Injection Molding Processing Guidelines
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Chemical Temperature | Visible After Login | Visible After Login | |
| Chemical Temperature | Visible After Login | Visible After Login | |
| Component A Weight Ratio | Visible After Login | Visible After Login | |
| Component B Weight Ratio | Visible After Login | Visible After Login | |
| Gel Time | Visible After Login | Visible After Login | |
| Mold Temperature | Visible After Login | Visible After Login | |
| Polyol Nucleation (Sp Grav) | Visible After Login | Visible After Login | |