Glue knowledge

Polyurethane foam sealant related introduction


Polyurethane (PU) foam sealant is a single component, moisture curing, multi-purpose polyurethane foam filling elastic sealing material. It fills the polyurethane prepolymer, catalyst and gas ejector in the pressure resistant iron aerosol tank. During construction, the aerosol colloid is sprayed to the construction part through the supporting sizing gun or manual nozzle, and the molding, foaming, bonding and sealing process is completed in a short term. General table dry time in less than 10 minutes (room temperature 20℃ environment), dry time with the environment temperature and humidity and different, under normal circumstances, summer dry time about 4-6 hours, winter zero or so it takes 24 hours or longer to dry. Its solidified foam elastomer has excellent properties such as bonding, waterproof, thermal expansion and shrinkage resistance, heat insulation, sound insulation and even flame retardant (limited flame retardant type). It is widely used for filling and sealing of building doors and Windows, expansion joints and holes of components. It is estimated that the service life of the foam is not less than ten years under normal use conditions (and in the case of covering layer on its surface), and the solidified foam body maintains good elasticity and bonding force in the temperature range of -10℃ ~ 80℃.

Advantages:

1. High efficiency and energy saving, no gap after filling, strong bonding after curing.

2. Anti-shock and anti-pressure, no cracking, no decay and no shedding after curing.

3. With ultra-low temperature thermal conductivity, weather resistance and insulation.

4. High efficiency insulation, sound insulation, waterproof and moisture-proof after curing.

5. This sealant can adhere to concrete, coating, wall, wood and plastic surface.

Application scope:

This product business field: door and window engineering installation, home decoration and so on.

1. Seal and fix wood, plastic steel, aluminum alloy and other metal door and window frames.

2. Wrap and seal the cable box, air conditioning pipe and heat and cold water pipe.

3. Fill the void in the masonry building; Fill in the gaps in the hull.

4. Home repair: fill holes and cracks, and repair floor tiles and floors.

5. Landscape gardening: flower arrangement, gardening landscape, scenery, light and beautiful.

6. Advertising exhibition: model, sand table manufacturing, display board repair.

7. Packing and transportation: wrap valuable and fragile goods instantly.

8. Refrigeration and air conditioning: caulking, sealing and heat preservation around cold storage and air conditioner.

Instructions:

A) Remove dirt and grease from the construction surface, and moisten the part to be filled with a little water.

B) It is used in the temperature range of 5℃-40℃. If it is constructed in cold season, it is recommended to preheat the tank in the environment of 30℃.

C) Shake vigorously for more than 1 minute before use.

D) Remove the cover, screw on the special construction gun, invert the tank, and slowly press the handle until the material is normal. The tank is inverted during construction.

E) Remove residue on nozzle and valve with cleaning agent after construction, so as to avoid curing and blocking.

F) 20-30 minutes dry table, 24 hours to form an elastic filling structure.

G) The forming filler can be cut, polished and sprayed. This product is not resistant to ultraviolet light, and further coating is recommended.

H) The validity period is 18 months, and the production date can be seen at the bottom of the tank.

Notes:

A) Keep the cans out of reach of children.

B) It is forbidden to Pierce and burn tank and empty tank. Keep away from fire and heat source during construction.

C) In the process of transportation and storage, open flame is prohibited, collision and sunlight are avoided, and the temperature of the tank shall not exceed 45℃.

D) Wear protective goggles and gloves and ensure good ventilation during construction.

E) If the foam touches the eyes or skin, flush immediately with plenty of water and seek medical attention if necessary.

F) It cannot be inverted. Under normal conditions, the tank is under pressure. Improper disposal will cause the risk of explosion.

G) This product contains isocyanate component, uncured foam is irritating.