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JS-300
Hot melt butyl sealant for insulating glass

JS-300 is a single component, solvent free, non fogging, non vulcanizing, and permanent plastic first layer sealant for insulating glass based on polyisobutylene rubber. JS-300 maintains its plasticity and sealing properties over a wide temperature range, and its surface does not crack and remains hard. It has good adhesion to materials such as glass, aluminum alloy, silver zinc steel, stainless steel, etc. Due to its extremely low water vapor transmittance, it can form an excellent moisture resistance system together with elastic sealants.

Product features

JS-300 is mainly used for the production of insulating glass. As the first sealant for insulating glass, it is used in conjunction with our company's two component polysulfide sealant for insulating glass, two component silicone structural sealant, or silicone sealant for insulating glass to achieve dual sealing.

Product parameters
Necessary compatibility testing must be completed before use

Color: Black
Specific gravity: 1.17 ± 0.05g/cm3
Solid content: 100%
Shear strength: 0.16 MPa
Water vapor transmittance: 0.10g/m2. d
Thermal weight loss: 0.2%
UV radiation resistance performance: tested according to GB/T1944 standard and qualified

 

Color and packaging

Paper barrel packaging: 6Kg/barrel, diameter 180mm, height 275mm; 7Kg/barrel, diameter 190mm, height 300mm.

Iron bucket packaging: 180Kg/bucket, with a diameter of 571mm.

Storage and expiration date

Storage conditions: -10 ℃~35 ℃ in a dry and ventilated place, storage period: 24 months. JS-300 sealant is a non hazardous material and can be transported by train, car, ship, and plane