Product introduction
The Polycin® GR series are 100% solids, castor oil based polyols used as reactive resins in polyurethane systems. For the first time, these products will yield a range of mechanical properties not available from the glyceryl ricinoleate chemical composition. Shore hardness from high D to low A can be achieved by MDI curing. The GR range uses castor oil as its sole base and is a completely natural product from renewable sources.
Preliminary technical information
|
nature |
GR-340 |
GR-220 |
GR-160 |
GR-110 |
GR-80 |
GR-50 |
GR-35 |
|
molecular weight |
370 |
650 |
928 |
1330 |
1770 |
2610 |
3450 |
|
Hydroxyl value |
342 |
220 |
164 |
109 |
78 |
52 |
38 |
|
equivalent |
164 |
255 |
342 |
515 |
716 |
1085 |
1457 |
|
functionality |
2.9 |
2.8 |
2.7 |
2.6 |
2.4 |
2.2 |
2.0 |
|
Viscosity (cP) |
900 |
775 |
720 |
1000 |
1050 |
1400 |
2000 |
|
specific gravity |
0.985 |
0.968 |
0.959 |
0.948 |
0.946 |
0.943 |
0.941 |
|
Color value (Gardner) |
3 |
2+ |
1+ |
3+ |
3- |
4 |
5 |
|
p-MDI curing hardness |
|||||||
|
Shore D |
70 |
35 |
12 |
10 |
0 |
0 |
0 |
|
Shore A |
98 |
80 |
60 |
52 |
35 |
13 |
3 |
|
Shore OO |
100 |
90 |
90 |
88 |
80 |
60 |
40 |
|
Tensile Strength(psi) |
6,345 |
2,600 |
540 |
165 |
135 |
65 |
38 |
|
Elongation(%) |
10 |
100 |
90 |
55 |
65 |
65 |
130 |
|
Tear Strength(pli) |
750 |
375 |
50 |
18 |
13 |
11 |
8 |
Note: The above properties are typical data and should not be considered specification.