Pu Mould Resin
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
|