7939 MS sealant is a silicon alkyl terminated polyether as a main component, low viscosity, general type of one component moisture curable sealant. Curing material combines the advantages of polyurethane and silicone adhesive sealant products, is a new generation of. The operating period is long, low modulus, without bottom coating, curing, paintable with high elasticity, resistance to ultraviolet light and excellent weather ability. Free of solvent, isocyanine free, non silicone, products tasteless environmental protection.
Applicable to the operating period is long, there is preliminary fixed the sealing of joints, such as weld seam sealing, etc.
Characteristics before curing
Base material: Silane modified polyether
Density (g/cm3): 1.47g/cc(GB/T13354-1992)
Tack free time (min): 15minutes(23℃/50%RH)
Pressure flow viscosity(s/10g): 15(0.5MPa, 23℃,3mm)
Characteristics after curing
|Room temperature vulcanized depth (mm/24h)||3.0|
elongation at break (%)
|Short use temperature(℃)||120|
Instructions for use
Clean:Clean the surface: remove the rust, dust and oil etc...
Gluing: The nozzle sleeve cut, take the glue mouth, cut into appropriate slope, using squeeze can glue gun is coated onto the construction site; pneumatic pressure recommended that no more than 0.4MPa sizing.
Curing:The parts are arranged in the air sizing, when after the formation of epidermis, from the surface to the interior of a room temperature curing, and 55% relative humidity at 24 hours, the curing depth of 2 ~ 4mm. With the extension of time, the curing depth increases gradually. The 7 day curing depth 6mm.
Storage: Unused plastic blocks should be tightened immediately, to seal the tube mouth save. Again, if sealed, a little crust, remove immediately after, does not affect the normal use. In the process of storage, the nozzle may also appear a few crusts, remove after normal use, does not affect the product performance.
The matters needing attention
Keep away from children.
If you accidentally come in contact with the skin, wipe in the curing a cloth before class, and using alcohol solvent scrubbing.
If the case of contact with eyes, rinse immediately with water, and medical treatment.
Recommended for use in a well ventilated place
Product safety data please refer to the product MSDS.
White: 310ml/Tube, 10tube/box, 30tube/carton
White: 600ml/ Sausage,20tube/carton
Black: 310ml/Tube, 10tube/box, 30tube/carton
Black: 600ml/ Sausage,20tube/carton
Grey: 310ml/Tube, 10tube/box, 30tube/carton
Grey: 600ml/ Sausage,20tube/carton
Store in cool and dry place 8-28 C
600ml/ Sausage 9months