SPRAY
POLYURETHANE INSULATION
How Spray-Foam
Work
In spray-foam application, rigid polyurethane foam
is formed when two chemical are mixed together in the presence of
suitable catalysts and activators in. This take place in the small
mixing chamber of the hand-hell spray-gun. On mixing, the reaction
gives off heat which is used to vaporise a 'refrigerant blowing
agents' which causes the mix to expand into a foam which is 30 times
the volume of its liquid constituents.
Density of foam: 30 - 35 kg/m³
| List of Reference |
| Selayang Hospital |
100,000 ft²
|
| Blood Bank Ipoh |
2,000 ft²
|
| Blood Bank Johor Bahru |
2,000 ft²
|
| Blood Bank Sg Buloh |
2,500 ft²
|
| National Blood Centre |
9,000 ft²
|
| Sarawak General Hospital |
32,000 ft²
|
|
Spray Polyurethane
Foam PU Chemical Data Sheet
Component A
|
Polyol Blended
|
| Component B |
Isocyanate
|
Mixing Ratio
|
1 : 1
|
Cream Time (s)
|
2 to 4
|
| Gel Time (s) |
5 to 9
|
| Rise Time (s) |
12 to 18
|
| Free Rise Core Density |
28 to 32 kg/m³
|
Sprayed Density
|
34 to 36 kg/m³
|
Compressive Strength
-Parallel to foam rise |
190 kPa
|
Dimension Stability
48 hours exposure @ 100°C |
1% Volume Change
|
| Thermal Conductivity |
0.020 W/m°K
|
|
Project List
|
Project Name
|
| Selayang Hospital |
NTT Expansion, Cyberjaya |
| Blood Bank Ipoh |
Keningau Hospital, Sabah |
| Blood Bank Johor Bahru |
Serdang Hospital |
| Blood Bank Sg Buloh |
Sg Buloh Hospital, KL |
| Blood Bank Jalan Tun Razak |
Sg Petani Hospital, Kedah |
| Sarawak General Hospital |
ACC Ipoh, Perak |
| Sibu Hospital Extension |
Jasin Hospital, Melaka |
|
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