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one component construction adhesive polyurethane bonding glue sealant for anti-wall airport runway plaza
SP821 is one component solvent-free polyurethane Low Modulus Construction Pu sealant
Key Features
1. Low modulus and high elasticity, good sealing and water-proof property
2. One component, convenient to apply, nonpoisonous and odorless after curing, green and environmental
3. The new and used sealant has good compatibility, easy to repair
4. Moisture-cure, no cracking, no volume shrinkage after curing
5. Excellent aging, water and oil resistance, resist to puncture, moldiness
6. Excellent extrudability, easy to scratch sewing operation
7. Bonding well with many substrates, no corrosion and pollution to substrate
Technical Data Table
PROPERTY | STANDARD/UNITS | VALUE |
Main raw material | ----- | Polyurethane |
Color/state | Visual inspection | Black/white/gray, paste |
Density | Gr/cc | 1.35±0.05 |
Volatile content | % | ≤4 |
Tack free time | min | ≤180 |
Curing speed | mm/ 24hrs | 3~5 |
Hardness | Shore A | 30±5 |
Tensile modulus | MPa | ≤0.4 90 |
Elongation at break | % | ≥600 |
Application temperature | °C | 5~35 |
Temperature resistance | Up to 1 hour short time, °C | 150 |
Shelf life | month | 9 |
Typical Applications
1. Sealing of expansion and settlement joint of house building, plaza, road, airport runway, anti-wall, bridges and tunnels, building doors and windows etc.
2. Sealing of upstream face crack of drainage pipeline, drains, reservoirs, sewage pipes, tanks, silos etc.
3. Sealing of through holes on various wall and at floor concrete
4. Sealing of joints of prefab, side fascia, stone and color steel plate, epoxy floor etc.
Operation:
Clean before operation
Clean and dry all surfaces by removing foreign matter and contaminants such as oil dust, grease,
frost, water, dirt, old sealants and any protective coating. Dust and loose particles should be cleaned.
Direction of operation
Tool:Manual or pneumatic plunger caulking gun
For cartridge
1.Cut nozzle to give the required angle and bead size
2.Pierce the membrane at the top of the cartridge and screw on the nozzle
3.Place the cartridge in an applicator gun and squeeze the trigger with equal strength
For sausage
1.Clip the end of the sausage and place in barrel gun
2.Screw end cap and nozzle on to barrel gun
3.Using the trigger extrude the sealant with equal strength

1. 310ml Cartridge, 20pcs per caton 1080pcs per cbm 33000pcs per 20ft container, 1080pcs per cbm 2. 600ml Sausage,
20pcs per carton 1cbm can take 800pcs 20ft container can take 20000pcs 600ml per sausae
Port: Shanghai,Qingdao,Ningbo,Any port in China
Lead Time :
Samples:3 days Standard order:7-10 days Other:depend on quantity
1.Senior Member International Chamber of Commerce,R&D Manufacturer concrete sealant
2.ISO9001,SGS


Q: Delivery time?
A: Normally 3-7 days after receive your payment .
Q: Can I get samples?
A:Yes , 500ML /1KG Tin /5kg Bucket samples are available .
Q: What is your MOQ?
A: Our MOQ is 1000kg for black /White /Grey / Blue color, 5000kg for customized color
Q: Can you do OEM lable for the products?
A: YES, We can
Any more questions, please contact us anytime!

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