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Bayflex® MP-25000
| Category: | PUR-Ether/MDI , Polyurethane (Polyether, MDI) |
| Manufacturer: | Covestro - PUR |
| Trademark: | Bayflex® |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | KKH6gG_Bayflex-MP-25000.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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Bayflex MP-25,000 is a solid elastomer which has a flexural modulus of 25,000 psi (172 MPa) at room temperature.* It is processed on reaction injection molding (RIM) equipment and is used for rollers, gaskets, and encapsulated windows. This system combines rapid demold times, excellent integrity at demold, improved release characteristics and outstanding physical properties. As with any product, use of the Bayflex MP-25,000 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability. Bayflex MP-25,000 is a formulated RIM system supplied as two liquid components. Component A is a diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol. Note: Component B should be agitated thoroughly prior to transfer of contents from the drum to the day tank. |
| General Information | |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.04 | g/cm³ | ASTM D792, ASTM D1622 |
| Molding Shrinkage - Flow (3.00 mm) | 1.5 | % | Internal method |
| Water Absorption (24 hr, 3.00 mm) | 3.3 | % | Internal method |
| Water absorption rate- 240 hr (3.00 mm) | 5.0 | % | Internal method |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Low Temperature Brittleness (-50°C, 3.00 mm) | No Cracking | ASTM D746 |
| Additional Information | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Water Immersion, Length Increase (3.00 mm) | 1.4 | % | Internal method |
| Hardness | Nominal Value | Unit | Test Method |
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| Durometer Hardness (shaw d, 3.00mm) | 50 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength (Break, 3.00 mm) | 24.1 | MPa | ASTM D638 |
| Flexural Modulus | ASTM D790 | ||
| -30°C, 3.00 mm | 441 | MPa | ASTM D790 |
| 23°C, 3.00 mm | 172 | MPa | ASTM D790 |
| 65°C, 3.00 mm | 124 | MPa | ASTM D790 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Stress | ASTM D412 | ||
| 20% strain 1 | 7.93 | MPa | ASTM D412 |
| 50% strain, 3.00mm 2 | 8.27 | MPa | ASTM D412 |
| 100% strain, 3.00mm 3 | 9.65 | MPa | ASTM D412 |
| Tensile Strength (Break, 3.00 mm) | 24.1 | MPa | ASTM D412 |
| Tensile Elongation (Break, 3.00 mm) | 250 | % | ASTM D412 |
| Tear Strength 4(3.00 mm) | 85.8 | kN/m | ASTM D624 |
| Thermal | Nominal Value | Unit | Test Method |
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| CLTE - Flow (3.00 mm) | 1.4E-4 | cm/cm/°C | ASTM D696 |
| Thermoset | Nominal Value | Unit | Test Method |
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| Thermoset Components 5 | |||
| Component a | Mixing ratio by weight: 48 | ||
| Component B | Mixing ratio by weight: 100 | ||
| Shelf Life (30°C) | 26 | wk | |
| Demold Time | 0.50 | min |
| Additional Information | Nominal Value | Unit | Test Method |
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| Part A Type: Isocyanate Specific Gravity @ 25°C: 1.21 Viscosity @25°C: 700 mPa-s Flash Point PMCC: 213 °C Part B Type: Polyol Specific Gravity @ 25°C: 1.03 Viscosity @25°C: 1200 mPa-s Flash Point PMCC: 193 °C Molding Parameters Material Temperature: 32 to 42 °C Mold Temperature: 65 to 75 °C |
| Note Message | |
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| 1 . | Die C, 510 mm/min |
| 2 . | C mold, 510mm/min |
| 3 . | Mouth die C, 510mm/min |
| 4 . | C mould |
| 5 . | 105 Index |
| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| Unichem 7002A-02 | Colorite Polymers | PVC, Unspecified | Unichem |
| Estane® 58245 TPU | Lubrizol Advanced Materials, Inc. | TPU-Polyether | Estane® |
| Fainplast PVC RKS 325 | Fainplast Compounds S.r.l | PVC, Rigid | Fainplast PVC |
| EPO-TEK® 377H | Epoxy Technology Inc. | Epoxy | EPO-TEK® |
| POFEX EP8300S 60DM | POLYROCKS CHEMICAL CO., LTD | TPU, Unspecified | POFEX |
