COMPOSITION
It consists of A&B component, A is polyol, and B is Iso-terminated polyurethane prepolymer.
CHARACTERISTICS
It has excellent processing properties, short gel time, solid in common temperature. The finished product has good properties of abrasion resistance, anti-hydrolyzing, transparence, good resilience and stable dimension.
APPLICATION
Used for making shoe and different kind of PU moulds. Substitute of Silicon rubber to make the mould of cultural stone.
STORAGE
Store in a cool and dry place. If you can’t use one drum up at one time, please fill Nitrogen gas and seal the drum well. The shelf life of original packing is 6 months.
PHYSICAL PROPERTIES
|
B |
Type | DM1295-B | |||
| Appearance | Colorless or light yellow transparent liquid | ||||
| Viscosity（30℃）mPa·s/ | 1500±150 | ||||
|
A |
Type | DM1260-A | DM1270-A | DM1280-A | DM1290-A |
| Appearance | Light yellow liquid | ||||
| Viscosity（30℃）/mPa·s | 560±200 | 650±100 | 750±100 | 850±100 | |
| Ratio A：B（mass ratio） | 1.4:1 | 1.2:1 | 1:1 | 0.7:1 | |
| Operation temperature/℃ | 25～40 | ||||
| Gel time（30℃）*/min | 6～15（variable） | ||||
| Appearance | Light yellow liquid | ||||
| Hardness （shore A） | 60±2 | 70±2 | 80±2 | 90±2 | |
| Tensile strength/MPa | 6 | 8 | 10 | 12 | |
| Elongation at break/ % | 500～700 | ||||
| Tear strength/（kN/m） | 25 | 30 | 40 | 40 | |
| Rebound/ % | 60 | 55 | 50 | 48 | |
| Specific gravity（25℃）（g/ cm3） | 1.07 | 1.08 | 1.10 |
1.11 |
|