POLYURETHANE POLYOL AND ISOCYANATE SYSTEM FOR TROWEL
1.APPLICATION:
A two-component polyurethane foam insulation system for the manufacture of shells, plates trowel and other products.The system does not contain ozone-depleting CFCs.
2.Chemical characterization of system components LY-5046:
2.1Component A brand Polyol blend:
A mixture of polyethers and special additives.
2.2Isocyanate:
Polymeric diphenylmethane diisocyanate
3.Typical property:
| Polyole blend | Isocyanate | |
| Density, g/cm3 (20ºC) | 1.08 | 1.24 |
| Viscosity, mPa s (25ºC) | 1700 | 200 |
| Storage stability,month | 3 | 6 |
| Storage temperature, ºC | 20~25 | 20~25 |
4. The recommended mixing ratio.
Polyol blend, 100 parts by weigh
Isocyanate 100-150 parts by weight
5.Application Guidline
made according to the data presented in this technical information on the casting machine, high and low pressure.The temperature of the forming equipment is 30 - 35 C°
6.Typical Physical Properties
| Property | Unit | Value |
| Density | kg/m3 | ≥50 |
| Closed cell content | % | 90 |
| Coefficient of thermal conductivity | W / m K | 0.026 |
| Compressive strength (10% deformation) | Kpa | ≥150 |
7.STORAGE OF MATERIALS
The materials are sensitive to humidity and partially used drums should be tightly sealed to prevent the ingress of moisture.
Polyol Blend
The Polyol blend has a shelf life of six months from date of manufacture when stored in doors at temperatures of 20-30°C.The Polyol blend should be thoroughly mixed before use.
Isocyanate
The Isocyanate has a helf life of one year from date of manufacture when stored indoors at temperatures of 20-30°C.Avoid storage temperatures of below 0°C (as some crystallization may occur) or above 50°C (as formation of insoluble solids may occur). 
