Blend Polyol LY-5460 Series for Pipe Shell Insulation
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. Blowing agent provides with HCFC-141B.
2.Chemical characterization of system components LY-5460:
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 |
When stored in a tightly closed container in a dry place at the recommended temperature.
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 |
≥120 |
7.APPLICATION GUIDELINES
7.1Facing Preparation
The facings should be clean, dry, and free of grease, oil, solvent or other contaminants, which will interfere with proper adhesion and/or polyurethane insulation quality.This product should be used with facing temperatures in the range 25-45°C.Higher facing temperatures (40° - 45° C) will enhance foam flow and adhesion.
7.2Equipment Type
This product is suitable for both Low or High Pressure dispensing equipment and hand mix.
8.STORAGE OF MATERIALS
The materials are sensitive to humidity and partially used drums should be tightly sealed to prevent the ingress of moisture.
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