SILCOLEASE XL 321 is used as a crosslinker for the bath preparation of SILCOLEASE solventless systems in the proportion of 2 to 15 parts for 100 parts of polymer. It is always used with an appropriate polymer and catalyst from the SILCOLEASE range of products.
Warning: SILCOLEASE CROSSLINKER and SILCOLEASE CATALYST may react violently together and therefore must not be blended together separately from the other components of the system.

SILCOLEASE XL 321 may be stored at temperatures between 2°C / 36°F and 30°C / 86°F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


SILCOLEASE XL 321 is a silicone polymer used as a crosslinker for solventless polyaddition SILCOLEASE systems.


SiH Fluid

Asia Pacific;Europe Middle East Africa;Central and South America;North America




SiH content32.5Monocomp%