Pre-sales Support
1. Design consultation 2. Drawing review 3. Sealant recommendation 4. Substrate experiment: compatibility test, adhesion test, pollution test 5. Solution (sealant seam decoration)
In-sales Support
1. Construction training 2. Process supervision 3. Special treatment 4. Rubber cutting spot check
After-sales Support
1. Issuing quality assurance documents 2. Project return visits
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Jointas Chemical is listed company specialized in R&D, manufacture and sale of Eco-friendly silicone sealant, thermal paste and water based paints&coatings founded in 1989, China.
We Provide acrylic sealant,anti corrosion coatings, silicone adhesive, construction sealant, silicone caulk, house paint, interior paint, insulating glass sealant, industrial paint, gutter sealant, gap filler, grout sealant, construction adhesive bathroom sealant, waterborne coatings, water-based coating for steel structure,silicone structural, silicone sealant, ms sealant, pu sealant, pu foam, polyurethane sealant, anti corrosion paint, weather sealant, If you feel interested in them ,You can browse related products and initiate consultations on our website.
Instructions for use of pu foam
a) Remove dirt and grease on the construction surface, and moisten the area to be filled with a little water.
b) It is used within the temperature range of 5℃-40℃. If the construction is carried out in the cold season, it is recommended to preheat the tank in an environment of 30℃.
c) Shake vigorously for more than 1 minute before use.
d) Remove the protective cover, screw on the special construction gun, turn the tank upside down, slowly press the handle of the gun, and start the construction when the material is discharged normally. The tank is in an upside-down state during construction.
e) After construction, use the cleaning agent to remove the residue on the nozzle and valve to avoid solidification and blockage.
f) The surface is dry in 20-30 minutes, and an elastic filling structure will be formed within 24 hours.
g) The molding filler can be cut, polished and sprayed. This product is not resistant to ultraviolet rays, and further coating is recommended.
h) The validity period is 18 months, and the production date is shown at the bottom of the tank.
Precautions for pu foam
a) Keep the tank out of the reach of children.
b) It is forbidden to pierce or burn material tanks and empty tanks. Keep away from fire and heat sources during construction.
c) Open flames are strictly prohibited during transportation and storage, collision and sunlight exposure are avoided, and the temperature of the tank should not exceed 45°C.
d) Wear protective goggles and gloves and ensure good ventilation during construction.
e) If the foam touches the eyes or skin, please rinse with plenty of water immediately, and seek medical attention if necessary.
f) Do not turn it upside down. Under normal conditions, the tank is under pressure, and improper handling may cause explosion hazard.
g) This product contains isocyanate ingredients, uncured foam is irritating.
Uses of pu foam
1. High efficiency and energy saving, no gaps after filling, strong bonding after curing.
2. It is shockproof and compressive, does not crack, corrode, or fall off after curing.
3. It has ultra-low temperature thermal conductivity, heat resistance and heat preservation.
4. Efficient insulation, sound insulation, waterproof and moisture-proof after curing.
5. This caulking agent can adhere to concrete, coating, wall, wood and plastic surface.
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Frequently Asked Question
Do you have any question?
1. Increase the total surface area of the bubble, that is, increase the free energy. 2. When the bubble liquid film wall becomes thinner, reduce the surface excess amount of adsorbed components, increase the surface tension, increase the free energy required to increase the surface area, and prevent the liquid film wall from thinning and breaking. 3. Increasing the viscosity of the material can effectively delay the thinning of the bubble film wall. This factor is the most important. Within 40-60s of the polyurethane foam foaming reaction, the influence of this factor will exceed other factors. 4. The double-sided electrical effect of the bubble liquid film also has a certain effect on the thinning of the liquid film.
1. The liquid film is dispersed due to the capillary action of the liquid film, and the dispersion phenomenon caused by gravity has the greatest impact. 2. The surface tension of the liquid film on the bubble wall is reduced due to the hot spots on individual parts or the presence of defoaming additives. 3. The van der Waals force between the surface of the bubble liquid film increases the tendency of the liquid film to thin. When the liquid film is very thin, its effect is more obvious.
Good thermal insulation performance, good waterproof performance, good bonding performance, suitable for new roofing or old roof repair, especially old roof repairing, no need to remove the original waterproof layer and insulation layer, just remove the ash and sand on the surface It can be sprayed, the construction is simple and fast, the closing structure is simple, the economic benefit is good, and the aging resistance is good.
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