Kastar PU FOAM is a polyurethane polymer that reacts with moisture in the air causing it to expand to fill any shaped hole or cavity.The cured foam can be cut or shaped and painted as disired. It is used preferably for insulation and installation in the construction sector application can be filling cavities, break-throughs, cracks and gaps, sound and heat insulation bonding fixing mounting, etc.
History e retardant pu foam,polyurethane foam manufacturer,pu foam machine
The pioneering work on polyurethanes was conducted by Otto Bayer and his coworkers in 1937 in Germany. Polyurethane foams, including SPF upholstery (flexibile) foams, etc. were developed in the 1950's.
FEATURES ADN APPLICATION
fire retardant pu foam,polyurethane foam manufacturer,pu foam machine
Excellent adhesion to a wide variety of surfaces such as UPVC, masonry, brick, block work, glass, steel, aluminum, timber and other substrates (except PP, PE and Teflon)
♦ Application where fire retardant properties are required;
♦ Installing, fixing and insulating of door and window frames;
♦ Filling and sealing of gaps, joint, openings and cavities;
♦ Connecting of insulation materials and roof construction;
♦ Bonding and mounting;
♦ Insulating the electrical outlets and water pipes;
♦ Heat preservation, cold and sound insulation;
♦ Packaging purpose, wrap the precious & fragile commodity, shake-proof and anti-pressure.
TECHNICAL FEATURES:
fire retardant pu foam,polyurethane foam manufacturer,pu foam machine
|
ITEM |
DATA |
|
Dry surface time/ Minute |
7-15 |
|
Curing time/ h |
1-2 |
|
Density (kg/cm3) |
11-18 |
|
Thermal Conductivity/ [mW/(m.k)] |
<30 |
|
Adhesive strength/ kPa |
>80 |
|
Tensile strength / kPa |
>30(10%) |
|
Bending strength/ kPa |
>40 |
|
Compressive strength/ kPa |
>40 |
|
Open cells rate% |
35~60 |
|
Oxygen index |
22~25(normal) / 28~32(flame retardancy) |
|
Permeate water Volume/ mL |
2~3(no epidermis) / <0.5(with epidermis) |
|
Application temperature |
+5°C - +35°C |
|
Temperature Resistance |
-35°C - +90°C |
|
Yield (L) |
40-45 |
|
Fire Class (DIN 4102) |
B2/ B3 |
|
Shrink |
NONE |
|
Post expansion |
NONE |
|
Storage life/month |
12 |