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FT-998/998M
Polysulfide insulating glass sealant

JS-998 two-component polysulfide sealant for insulating glass is a solvent-free, two-component, room temperature curing sealant.

JS-998M two-component ordinary civil insulating glass polysulfide sealant is a solvent-free, two-component, room temperature curing sealant.

Product features

Two component, room temperature curing, free from solvents and low boiling substances, without polluting the environment;

Good bonding performance, excellent aging resistance, extremely low water vapor and inert gas permeability, and the hollow glass produced meets the requirements of GB/T 11944 standard.

Product parameters
The following data is for reference only and is not recommended for developing specifications. To develop specifications, please contact your local sales representative

Project technical indicators
Mechanical construction and manual construction
Appearance: Component A is white, with uniform viscosity and paste like substance. White, with uniform viscosity and paste like substance
B component black, uniformly viscous paste black, uniformly viscous paste
Viscosity (Pa s) Component A 250-400 180-350
Component B 100-250 100-250
Pot life (min) ≥ 30 ≥ 30
Surface drying time (h) ≤ 2 ≤ 2
Sag (mm) ≤ 1 ≤ 1
Tensile bonding strength (Mpa) ≥ 0.8 ≥ 0.7
Hardness after vulcanization (Shore A) 5h ≥ 30 ≥ 25
24h ≥40 ≥35

Note: The above experimental conditions are temperature 23 ± 2 ℃, relative humidity 50 ± 5%, mixing ratio A: B=100:10, and the tensile bond strength is placed under the above conditions for 7 days.
Color and packaging

Product packaging: Component A is 191L/barrel, 300Kg/barrel, 30Kg/barrel, and the supporting packaging for Component B is 19L/barrel, 30Kg/barrel, and 3Kg/barrel.

Storage and expiration date

Store in a cool, ventilated and dry place for a storage period of 12 months