Description
SY-Spray435 blend polyols with HFO as blowing agent, it reacts with isocyanate to produce foam which has good performances:
1-fine and uniformity cells
2- low thermal conductivity
3-perfect fire resistance
4- excellent low temperature dimensional stability.
Suitable for all kinds of thermal insulation projects,such as cold room, large tank, large pipeline, external wall or internal wall and other use of spray insulation projects.
Pphysical property
COMPONENT 1-Blend polyol
| Appearance |
Light yellow to brown liquid |
| Hydroxyl Value mgKOH/g |
200-300 |
| Dynamic viscosity(25ºC) mPa.S |
100-200 |
| Specific gravity (20 ºC ) g/ml |
1.12-1.20 |
| Storage temperature ºC |
10-25 |
| Storage stability month |
6 |
COMPONENT 2-Polymeric MDI
| Appearance |
brown transparent liquid |
| NCO content % |
30.50-32.50 |
| Dynamic viscosity (25ºC) mPa.S |
160-240 |
| Density (20ºC) g/ml |
1.22-1.25 |
| Storage temperature ºC |
10-25 |
| Storage stability month |
6 |
RECOMMENDED RATIO
| Raw materials |
pbw |
| Blend polyols |
100 g |
| Polymeric MDI |
100-105g |
(The temperature of the system is 20ºC,and the exact value varied depending on processing condition)
Foam performances
| Items |
Metric Unit |
| Spray Density |
ASTM D1622 |
≥35kg/m3 |
| Closed-cell Rate |
ASTM D 2856 |
≥90% |
| Initial Thermal Conductivity(15ºC) |
GB 3399 |
≤24mW/(m.K) |
| Compressive Strength |
ASTM D1621 |
≥150kPa |
| Adhesive Strength |
GB/T16777 |
≥120kPa |
| Water Absorption |
ASTM E96 |
≤3% |
| Flame retardant grade |
DIN 4102 |
Level B2 or B3 (Self distinguish) |
The above testing data have been generated in lab or field conditions which are typical for this application. They are believed to be correct but data variations due to varying processing or ambient conditions can not be excluded. The customer remains responsible for making his own interpretation of data and suitability of the chemicals to his particular operation.
Package
220kg/drum with pallets, or 1100kg/IBC
Company and factory introduction:
R&D Centre
We have built a doctor's studio and a R&D laboratories,strong scientific research strength.
Quality control & foam performance test
Audited Supplier 
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