Ebalta Kunststoff Gmbh MG 425PUR 19
- Chemical Family
- Polyurethanes (PU)
ebalta MG 425 is processed on a two-component low pressure device. The systems MG 400 / MG 425 / MG 475 are cured with the hardener PUR 19. By mixing MG 425 with MG 400 the E-modulus can variably between 630 – 1550 MPa. After grinding with a sand paper , grit 280, the surface can be varnished with a commercial lacquer. For better adhesion we recommend the use of a primer coat. Nitrocellulose lacquers have a better adhesion on polyurethane surfaces than on acryllacquer- systems. Release agent – please see category release agent
Product families
Applications
- Aftermarket Parts & Components
- Exterior & Body
- Interior
- Tooling & Moldmaking
- Data Communication Cables
Product Families
- Polyurethanes
Other characteristics
- Density
- 1130.0 - 1170.0 kg/m³
- End Uses
Automotive Components, Automotive Exterior Parts, Automotive Interior Parts, Electronic Data Processing, Modeling Material
- Polymer Name
- Polyurethane (unspecified)
- Processing Methods
Casting, Injection Molding, Reaction Injection Molding (RIM)
- Basis
- RIM Polyurethane Casting resin
- Markets
- Automotive & Transportation
- Electrical & Electronics
- Industrial
- Storing
Storage at room temperature 18-25 °C. Opened containers should be closed immediately after use and should be used up as soon as possible.
- Properties
medium E-modulus high impact resistance excellent flow properties
- Technology
- Plastics
- Material Features
- Excellent Flow Properties
- Impact Resistance
- Processing Instruction
It is essential to stir component A before use, as the additives tend to sedimentation. Component B has not to be stirred. The molding tools should be made of a polyurethane- resp. epoxy resin system, with a high-quality surface. In order to improve the surface appearance of the component, it is possible:; to preheat the material to 30°C; to preheat the molds to 40 - 50°C; A combination of preheated material and molds is the optimum. The wall thicknesses of the components are approx. 4 mm. Ribs or bigger material accumulations can also be produced. Shrinkage of the parts depends on geometry, wall thickness and temperature. Laboratory values are available on demand. The components can be demoulded after approx. 20 - 30 min. This can differ accordingly to wall thickness and temperature. The postcuring has to be made by means of a supporting structure.
- Plastics and Elastomers End Uses
- Automotive Components
- Automotive Exterior Parts
- Automotive Interior Parts
- Electronic Data Processing
- Modeling Material
- Plastics and Elastomers Functions
- Resin
- Plastics and Elastomers Processing Methods
- Casting
- Injection Molding
- Reaction Injection Molding (RIM)
Technical data
Table 1 of 1
12 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Shore hardness | 75 ± 2 | Shore A | DIN ISO 7619-1 |
| Viscosity (25°C) | 750 ± 100 | mPa.s | — |
| Flexural elongation at break | 6.8 ± 0.3 | % | EN ISO 178 |
| Density (20°C) | 1,15 ± 0,02 | g/cm3 | — |
| Flexural modulus | 1550 ± 150 | MPa | EN ISO 178 |
| Pot Life (20°C) | 50 - 60 | minutes | — |
| Flexural strength | 62 ± 6 | MPa | EN ISO 178 |
| Curing time at RT | 20 - 30 | Hrs | — |
| Glass transition temperature TG | 80 | °C | — |
| Post Curing | 4-5 | Time in h (Temperature in °C) | — |
| Heat resistance (HDT) | 73 ± 2 | °C | DIN EN ISO 75 B |
| Impact resistance (Charpy) | 80 ± 12 | kJ/m2 | EN ISO 179 |
