Ventruce Polycin® GR polyol series_Toluene diisocyanate manufacturer

Ventruce Polycin® GR polyol series

Product Introduction
Polycin® GR series are 100% solids, castor oil based polyols used as reactive resins in polyurethane systems. These products will, for the first time, yield a range of mechanical properties not obtainable from the ricinolein chemical composition. High D grade to low A grade Shore hardness can be obtained by MDI curing. Using castor oil as its sole base, the GR range is a completely natural product from renewable resources.

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 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