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Baydur® GS-772
| Category: | PUR-MDI , Polyurethane (MDI) |
| Manufacturer: | Covestro - PUR |
| Trademark: | Baydur® |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | DSyynL_Baydur-GS-772.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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Baydur GS-772 is a solid polyurethane system used in the reaction injection molding (RIM) process. The system is supplied as two reactive liquid components. Component A is a polymetric diphenylmethane diisocyanate (PMDI) and component B is a formulated polyol system. Baydur GS-772 system is used in applications where harsh environmental conditions are encountered, such as pump housings, catch basins, and underground equipment. It is also used as a replacement for cast iron where the application requires weight reduction, improved corrosion resistance, and/or improved abrasion resistance. As with and product, use of the Baydur GS-772 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability. |
| General Information | |
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| Features |
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| Uses |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | |||
| -- | 0.708 | g/cm³ | ASTM D1622 |
| -- | 1.13 | g/cm³ | ASTM D792 |
| Molding Shrinkage - Flow | 1.0 - 1.2 | % | Internal method |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D) | 76 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength (Break) | 39.3 | MPa | ASTM D638 |
| Tensile Elongation (Break) | 10 | % | ASTM D638 |
| Flexural Modulus | 1380 | MPa | ASTM D790 |
| Flexural Strength | 60.0 | MPa | ASTM D790 |
| Compressive Strength | 34.5 | MPa | ASTM D695 |
| Films | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Film Thickness - Tested | 6400 | µm |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Notched Izod Impact | 48 | J/m | ASTM D256 |
| Unnotched Izod Impact | 370 | J/m | ASTM D256 |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Deflection Temperature Under Load (0.45 MPa, Unannealed) | 98.9 | °C | ASTM D648 |
| Flammability | Nominal Value | Test Method | |
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| Flame Rating | V-0 | UL 94 |
| Thermoset | Nominal Value | ||
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| Thermoset Components | |||
| Component a | Mixing ratio calculated by weight: 100, mixing ratio calculated by capacity: 86 | ||
| Component B | Mixing ratio by weight: 100, mixing ratio by capacity: 100 |
| Additional Information |
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| Part A Type: Isocyanate Appearance: Dark brown liquid Specific Gravity @ 25°C: 1.24 Viscosity @ 25°C: 200 mPa*s Flash Point PMCC: 199°C NCO: 31.0 min wt% Part B Type: Polyol Appearance: Black liquid Specific Gravity @ 25°C: 1.05 Viscosity @ 25°C: 1700 mPa*s Flash Point PMCC: 206°C Water: 0.08 wt% Hydroxyl Number: 370 mg KOH/g Material Temperature: 32 to 38°CMold Temperature: 60 to 71°CMachine Reactive @ 35°C: 16 secTypical Cure Time: 3 to 6 minTypical Mold Density: 65 to 71 lb/ft³ |
| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| RheTech Thermoplastic Polyolefin FT7016-50UV | RheTech, Inc. | Polyolefin, Unspecified | RheTech Thermoplastic Polyolefin |
| SITRALAC 45E-AS | SITRAPLAS GmbH | ABS | SITRALAC |
| VAMPORAN 0024 V0 13 | Vamp Tech | PPE+PS | VAMPORAN |
| NYLEM® 66 GTF 45 | EMAS Plastik San.Tic.AS. | Nylon 66 | NYLEM® |
| ISPLEN® PB 141 N2M | REPSOL | PP Impact Copolymer | ISPLEN® |
