Product description
SD2502 formulated polyol is a kind of pouring polyurethane rigid foam system designed with the HCFC-141B system. It is specially used for the solar. It contains all the raw materials and auxiliaries necessary for the production of rigid polyurethane foam including the blowing agent. It has the characteristics as following:
n The destiny is uniform distribution. It has strong bonding force with other substrates.
n The light weight, high strength and good dimensional stability
n The low thermal conductivity and good low temperature resistance
Product use
This product is suitable used for the thermal insulation of the solar and engineering water tank.
Characteristics
① Basic Parameters
|
Characteristics |
Index |
Unit |
Testing Method |
|
Density (25°C) |
1.10±0.10 |
g/cm3 |
GB/T6343-2009 |
|
Viscosity (25°C) |
200-400 |
mPa.s |
GB/T12008.7-2010 |
② Reaction Time Parameter and Product Properties
SD2502 type component polyether system will need use foaming machine, here with the laboratory index for reference, while the actual value will be different depending on the construction conditions. Testing formula:
|
Yantai Shunda（SD2502） Component B |
100 lots |
|
Yantai Wanhua（PM-200) Component A |
100 lots |
Reaction index（Laboratory free foaming, mixing speed 3500r/min）
|
Environment temperature（℃） |
25±1 |
|
Component A temperature（℃） |
25±1 |
|
Component B temperature（℃） |
25±1 |
|
Mix Ratio/（A:B）in Weight |
1:1 |
|
Mixing Time /（s） |
8"00 |
|
Cream Time/（s） |
10"00-15"00 |
|
Gel Time/（s） |
45"00-55"00 |
|
Tack Free Time/（s） |
60"00-100"00 |
|
Free Rise Density/（kg/m3） |
28-35 |
③ Product Performance
Under the condition of the specified process, typical foam specification shows following:
|
Items |
Index |
|
|
Core Density kg/m3 |
≥30 |
|
|
Thermal Conductivity w/m.k |
≤0.028 |
|
|
Dimensional Stability |
（100℃±3）℃, 48h % |
≤1.5 |
|
-（30℃±3）℃, 24h % |
≤1 |
|
|
Compressive Strength kPa |
≥130 |
|
|
Water Absorption（v/v） |
≤5 |
|
|
Rate of Closed Cell % |
≥90 |
|
Remark: Above data is obtained by the lab testing, actual data at customer side may be different because of test machine and condition, etc. And all the data listed of our products will have no any legal force.
Packaging：
The material is normally supplied in iron pail with Zinc coating in standard container, 220kgs/drum.
Storage Recommendations：
The SD2502 is hygroscopic and containers must be kept sealed tightly to prevent absorption of moisture, which can adversely affect processing. During the transportation, it should avoid serious shake and strong sunlight. It should be stored in ventilated place, avoiding light, water and fire. Recommended storage temperature is 10～25℃.
