BQ8223 cold storage and exterior wall insulation system blend polyol is a kind of spray rigid PU foam blend polyol, specially used for the insulation of the wall of storage and building insulation. It used together with isocyanate(PM-200) to make rigid PU foam through PU spray machine. The foam produced has the characteristics as following:
The strong adhesive force, convenient construction and no seams.
The low thermal conductivity, low water absorption and good dimensional stability.
The long service life.
TYPICAL PHYSICAL PROPERTIES
|
Physical Properities |
Test Method Standard |
Metric |
Value |
|
|
Core Density |
GB/T 6343-2009 |
kg/m3 |
38.3 |
|
|
Compressive Strength |
GB/T 8813-2008 |
kPa |
264 |
|
|
Tensile Strength |
GB/T 9641-88 |
kPa |
136 |
|
|
Oxygen index |
GB/T 2406.2-2009 |
% |
23.4 |
|
|
Initial Thermal Conductivity |
GB/T 10294-2008 |
W/(m·K) |
0.023 |
|
|
Close Cell Content |
GB/T 10799-2008 |
% |
≥88 |
|
|
Water Absorption |
GB/T 8810-2005 |
% |
≤3 |
|
|
Dimensional Stability |
-25°C 70°C |
GB/T 8811-2008 |
% |
≤±1 |
|
(Foam made After 6 days) |
≤±1 |
|||
USAGE ATTENTIONS
The thickness of one gun spray foam should not exceed 50 mm. If over 50mm, which may cause foam charring or spontaneous combustion and poor foam performance.
It is suggested that spray next layer of the foam after the internal temperature of last spray foam blow 25℃. And the maximum thickness spray during 24hperiod is 203mm(8inches).
Like most of foam product, foam made by BQ8223 is combustible. An thermal barrier must be installed in accordance with approved construction standards.
The service temperature of the foam with BQ8223 is between -60~80℃ .
PACKING SPECIFICATION
220KGS/drum, blue paint or zinc coating drums (Drum Weight: 18-23kgs)
STORAGE RECOMMENDATIONS
The blend polyol should be stored in the sealed container to avoid the absorption of water vapor. 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 15～25℃ .
SAFETY PRECAUTIONS
Direct contact with BQ8223 type blend polyol can lead to moderate eye irritation and mild skin irritation, which can cause skin
allergies. Repeated inhalation of high concentration of volatile gas will cause respiratory allergy, and should be treated immediately. Anti- inflammatory and anti-allergic treatment measures should betaken.
Please be careful in the operation to prevent contact with the skin and splash into the eye, please wear the necessary protective equipment (gloves, protective goggles, working clothes, etc.).
Once splashed on the skin or the eye, rinse with water immediately for at least 15 minutes, and the skin is washed with soapy water. Please seek medical treatment immediately after swallowed.
COMBUSTION AND EXPLOSION HAZARDS
This product is not classified as a flammable liquid, explosives, oxidants, corrosives, poisons and radioactive dangerous goods during storage and transportation. It is not classified as dangerous.
Extinguishing media: Use carbon dioxide, foam or chemical dry powder fire extinguishers. When there is no other fire extinguishing agent, a large amount of misty water can be sprayed.