กลุ่มรับพ่นโฟม งานติดตั้งฉนวนกันความร้อน Polyurethane Foam -------------------------------------------------------------------------------------------------------------------------------------- งานติดตั้งฉนวนกันความร้อน Polyurethane Foam
Spray Foam Quality Key quality items:
35 kg/m3
Min. density for close cell 141b blown PU Foam
Compressive strength
150 kPa
For foam density 35-40kg/m3
Adhesion strength
Important for long term safety
Thermal conductivity
0.024 W/(m-K)
It will affect the R value
Closed cell content
90%
Dimensional stability -30?C, 24hrs +70?C, 24hrs
1.5% 1.5%
Water absorption
3%
Fire performance DIN4102 ASTM E -84 Oxygen Index
B2 Class 2 26%
Different country or project may have different fire performance requirements. Need to get the certificate in advance. PU foam final fire performance depends on the formulation. Important for building fire safety.