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Bayflex® 957
| Category: | PUR-MDI , Polyurethane (MDI) |
| Manufacturer: | Covestro - PUR |
| Trademark: | Bayflex® |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | LqZ1PW_Bayflex-957.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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| Message |
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Bayflex 957 is a fully compounded polyether-based polyurethane system consisting of two liquid components which can be water-blown. Component A is a modified diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. The Bayflex 957 system is used in the manufacture of microcellular polyurethane shoe soles. Soles prepared from these components combine light weight, comfort, and durability. Processibility and dynamic flexural properties are excellent over a wide range of densities. The combination of excellent physical properties and ease of processing has made the Bayflex 957 system a prime soling material for fashion and casual shoes. As with any product, use of the Bayflex 957 system in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. The properties of the Bayflex 957 system, listed below, are representative of typical performance characteristics of molded panels. Actual results may vary, depending on part design and processing conditions. |
| General Information | |
|---|---|
| Features |
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| Uses |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 0.497 | g/cm³ | Internal method |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore A) | 50 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Taber Abrasion Resistance (1000 Cycles, 1000 g, H-18 Wheel) | 70.0 | mg | ASTM D3489 |
| Ross Flex 1 | ASTM D1052 | ||
| -29°C, 6.35 mm | > 5.0E+4 | Cycles | ASTM D1052 |
| 23°C, 6.35 mm | > 1.0E+5 | Cycles | ASTM D1052 |
| Additional Information | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Oil Resistance | % | ASTM D5694 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength (Break) | 3.10 | MPa | ASTM D412 |
| Tensile Elongation (Break) | 400 | % | ASTM D412 |
| Tear Strength | |||
| -- 2 | 4.38 | kN/m | Internal method |
| -- 3 | 14.0 | kN/m | ASTM D624 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Thermoset Components | |||
| Component a | Mixing ratio by weight: 77 | ||
| Component B | Mixing ratio by weight: 100 |
| Additional Information | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Part A Type: Isocyanate Appearance: Light yellow viscous liquid Specific Gravity @ 25°C: 1.20 Viscosity @25°C: 1100 mPa*s Flash Point PMCC: 207°C Bulk Density @ 20°C:10.01 lb/gal NCO: 18.7 - 19.1 wt% Part B Type: Polyol Appearance: Milky white liquid Specific Gravity @ 25°C: 1.07 Viscosity @25°C: 1100 mPa*s Flash Point PMCC: 132°C Bulk Density @ 25°C: 8.93 lb/gal Water: 0.45 wt% Hydroxyl Number: 170 Material Temperature: 28°CMold Temperature: 49°CDemold Time: 3.5 minLinear Shrinkage @ 0.50 g/cm³: <1.0%Hand Mix Reactivity @ 25°C Cream Time: 12 to 16 sec Tack Free: 23 to 33 sec Pull Time: 32 to 43 sec Free-Rise Density: 12.5 to 15 lb/ft³ |
| Note Message | |
|---|---|
| 1 . | 0% Cut Growth |
| 2 . | Block |
| 3 . | C mould |
| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| Rynite® 545 NC010 | DuPont Performance Polymers | PET | Rynite® |
| Supol HP310E | LyondellBasell Industries | PP Copolymer | Supol |
| NEXUS PC PC1510UV | Nexus Resin Group, LLC. | PC | NEXUS PC |
| Cevian®-V 770 | PlastxWorld Inc. | ABS | Cevian®-V |
| Sylvin 8280-65 White 1518 | Sylvin Technologies Incorporated | PVC, Unspecified | Sylvin |
