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    CH-4900 Silicone Structural Sealant

  • Category:
    Silicone Sealant
  • Browse number:
  • Release time:
    2019-12-12 14:26:48

CH-4900 is a single-component, neutral, room temperature curing, high-performance structural sealant for construction; specially designed for the adhesive assembly of curtain wall structures, which is non-corrosive to metal, coated glass, concrete and marble; the product has excellent weather resistance, aging resistance, UV resistance and ozone resistance after curing, giving it a long service life; excellent high and low temperature resistance, with little change in performance within the range of -40℃-150℃; good adhesion to most building materials and good compatibility with other neutral silicone adhesives.


Main usage:

Ø Various glass curtain walls. Aluminum-plastic curtain wall, glass lighting roof and structural bonding seal for metal structure engineering;

Ø Two adhesive seals of insulating glass;

Ø Other construction and industrial adhesive seals.



Ø Conduct the compatibility test of bonding materials before use, and confirm that the product and substrate can meet the construction requirements before construction;

Ø Please refer to "Chenhua silicone structure sealant use process guide" for the construction method, and set the minimum width and thickness according to the load and wind pressure borne by the curtain wall construction design.


Construction summary:

Ø Not applicable to all oozing grease, plasticizers, solvents or frosted, wet surfaces;

Ø Not suitable for use in closed Spaces or on surfaces in direct contact with food or drinking water;

Ø The construction environment temperature is less than 15℃ or more than 27℃, and the humidity is less than 50%;

Ø Do not bond to materials containing copper or alloys.


Safety instructions:

Ø Uncured structural adhesives and structural adhesives will release volatile compounds during curing. Long-term inhalation of high concentration of volatile compounds will harm health. Therefore, good ventilation should be maintained in the workplace;

Ø The uncured structural adhesive should not be in direct contact with the skin for a long time. If it accidentally enters the eye, it should be immediately washed with plenty of water and checked by the doctor if necessary;

Ø The structural adhesive will not release harmful substances or cause damage to the skin after curing;

Ø In case of accidental ingestion of structural glue, immediately seek medical treatment.


Color and packaging:

Ø 950ml composite membrane in soft package, 300ml plastic pipe in rigid tube;

Ø Color: black, gray, white or other color required by the user.


Storage period:

Ø Store in a dry and ventilated place below 27℃;

  Ø Shelf life: 12 months