SILANE CROSSLINKERS | SILANE CROSSLINKING AGENTS

SiSiB SILANES has been developing and producing crosslinkers and coupling agents for the sealant industry for over twenty-five years, supplying world markets with a successful range of innovative products.

	Acetoxy Silane Crosslinker		Oximino Silane Crosslinker		Alkoxy Silane Crosslinker
	SiSiB® PC7930 MTA		SiSiB® PC7130 MOS		SiSiB® PC5131 MTMS
	SiSiB® PC7950 ETA		SiSiB® PC7500 VOS		SiSiB® PC5132 MTES
	SiSiB® PC7960 VTA		SiSiB® PC7400 TOS		SiSiB® PC5420 TEOS
	SiSiB® PC7970 PTA		SiSiB® PC7600 POS		SiSiB® PC5424 TEOS-40
			SiSiB® PC7133 Methyl MIBKO Silane		SiSiB® PC5430 TPOS
			SiSiB® PC7530 Vinyl MIBKO Silane		SiSiB® PC6110 VTMO
			SiSiB® PC7410 Tetra MIBKO silane		SiSiB® PC6151 Enoxy
			SiSiB® PC7131 Methyl Acetoxime Silane		SiSiB® PC8151 Enoxy
			SiSiB® PC7531 Vinyl Acetoxime Silane

The crosslinking agent used in RTV silicone systems consists of a species that can be represented as R-Si-X3 (typically used in one component systems) or Si-X4 (typically used in two component systems). The R is an organic group such as a methyl, ethyl, or vinyl, and the X is a moisture hydrolysable group. A simplified cure mechanism for a one-component silicone RTV sealant is shown in below:

Figure A: Reaction of crosslinker with polymer ends:

Figure B: Reaction of crosslinker-capped polymer end with moisture:

Figure C: Reaction of resultant polymer end with another polymer: