Polyurethane Elastomer for Rotary Casting consists of 3 components:
32130 is Prepolymer
2-65 is curing agent
2-95 is curing agent
Packaging details and storage conditions
|
Items |
32130 |
2-65 |
2-95 |
||
|
2-65A |
2-65B |
2-95A |
2-95B |
||
|
Packing Details |
Round iron drum,50L/drum |
Round iron drum,50L/drum |
Square iron drum,2L/drum |
Round iron drum,50L/drum |
Square iron drum,3L/drum |
|
Storage Temperature |
＜30℃ |
＜30℃ |
＜30℃ |
＜30℃ |
＜30℃ |
|
The longest sealed storage time |
12months |
12months |
12months |
12months |
12months |
Process temperature and raw material technical parameters
|
Items |
32130 |
2-65 |
2-95 |
||
|
2-65A |
2-65B |
2-95A |
2-95B |
||
|
NCO% |
13.1±0.2% |
/ |
/ |
||
|
Appearance |
Liquid |
Solid |
Liquid |
Solid |
Liquid |
|
Pouring process temperature |
50±3℃ |
50±3℃ |
50±3℃ |
||
|
Viscosity cps/50℃ |
800-1000 |
500-700 |
50-100 |
300-600 |
50-120 |
|
Preheat condition |
50-60℃ 5-8 hours |
60-70℃ 5-8 hours |
/ |
60-70℃ 5-8 hours |
/ |
Pouring operation matters (Special moldless rotary pouring equipment)
A, Raw material preheating: Preheat the raw materials to be used according to the parameters in the above Table 2.
B, Prepare two chain extender components, 2-65 and 2-95, according to the parameters in Table 3.
C, Start the vacuum pump of the equipment, and perform stirring and vacuuming operations on the prepolymer and chain extender components. When there are almost no bubbles on the liquid surface, relieve the pressure with dry air or nitrogen.
D, According to the parameters of the equipment metering pump, the size of the pouring port (flat mouth), and the diameter of the rubber roller, set the corresponding pouring flow parameters and perform metering calibration. Note: The normal speed range of the metering pump is 45-120rpm to prevent distortion of the metering pump.
E, According to the thickness of the PU coating layer, set parameters such as the rotation speed of the rubber roller core, the moving speed of the mixing head, and the inclination Angle of the pouring port.
F, Post curing: 7 days at room temperature (≥25℃) or 2 hours at 100℃.
Package
50kgs/drum; 200kgs/drum; 20kgs/drum
Hot Tags: polyurethane elastomer for rotary casting, China polyurethane elastomer for rotary casting manufacturers, suppliers, factory, Castable Urethane Elastomers, Moulding Glue Urethane Material, Castable PU Prepolymer, polyurethane prepolymer for coating substrates, castable prepolymer for elastomer, PU rigid foam for pipe insulation
