Polyurethane
Polyurethane adhesive is a type of flexible and colorable sealant based on polyurethane. This adhesive is specifically designed for metals and various other surfaces, providing excellent adhesion speed and a strong and reliable bond. It is highly suitable for both internal and external sealing applications, effectively preventing water and dust penetration. Additionally, it enhances corrosion resistance. Polyurethane adhesive effectively seals gaps, holes, joints, and seams on metal or painted surfaces, as well as on pure metal surfaces.
The resistance and hardness of single-component polyurethane adhesives are measured using a unit called Shore A. Typically, for construction products, a Shore hardness of 40 is common, while higher Shore hardness values are used in the automotive industry.
technical specifications
|
Polyurethane |
curing system |
|
Moisture |
curing mechanism |
|
45-60 min |
skin forming time |
|
2-2.5 mm/day |
curing rate |
|
More than 300 |
ultimate elongation |
|
1.90 N/mm2 |
tensile strength |
|
45 |
hardness shore a |
|
1.33 g/cm3 |
density |
|
-40c تا 180c |
thermal resistance |
|
15 |
movement capability |
|
0.90 N/mm2 |
elastic modulus at 100% |
|
+5c/+40c |
application temperature |
|
+5c/+35c |
storage temperature |
product usage
- Sealing in dry facades such as cement board (fiber cement board) and dry ceramic facade
- Sealing the curtain and facade glass
- Used as an adhesive for bonding precast concrete parts or GFRC
- Gluing electrical components
- Gluing the body of car parts and installing car glass
- Sealing and gluing in the automotive industry
- Cabs, containers, and wagons
- Ship industries
- Construction of car bodies, containers, caravans, and…
- Gluing and sealing ducts, ducts of air conditioning systems, studs, fountains, and…
- Sealing the distance and seams of metal plates and also creating the required distance between galvanized and metal plates
how to maintain
Polyurethane adhesives in sealed packaging have a shelf life of 12 months from the production date. After that, they start to harden and become unusable. The storage location should be away from direct sunlight and moisture, and the storage temperature should be maintained between +5 to +25 degrees Celsius.
How to use
The first step to using polyurethane adhesive is to buy a gun for polyurethane adhesive, which should be requested from the seller of polyurethane adhesive when buying polyurethane adhesive.
The next step is to hold the thumb on the piston trigger to fully lower the piston rod and place the polyurethane adhesive in the injection gun chamber.
Then remove the polyurethane adhesive placed in the injection gun, about 10-15 cm, and use a pair of pliers or a cutter to remove the polyurethane adhesive attached to the aluminum foil, and then the funnel. Attach the plastic to the cut part of the polyurethane glue and place it inside the polyurethane glue injection gun.
Then the holder or the metal holder of the threaded head of the gun closes the injection of polyurethane glue and now the polyurethane glue is ready to be injected into the desired surface.
