Adhesives & Sealants
RTV-1 & RTV-2
Agriculture Advajunts
Artificial Marble / Quartz
Building Protection
Coatings & Paints
Contact Lenses
Dental Surgery
Diffusion Pump Fluid
Fillers & Pigments
Foundry Investment Casting
Foundry Resins
Glass Fiber
Li-ion Batteries
Olefin Polymerisation
Personal Care
Photovolatics (Solar Cells)
Plastics & Thermoplastics
Polyurethane Foam
Rubber & Tyre
Silicone Rubber
Condensation Cure
Addition Cure
Heat Cure Elastomer
Sol-gel Coating
Textile Finishes

Condensation Curing Silicone Sealant Formulation Guide
  OH Polymer Silane Crosslinkers
  Silane Adhesion Promoters Silane Coupling Agents
  Fumed Silica Tin Catalysts
  Plasticizers Water Scavengers

Silane Crosslinkers
SiSiB SILANES has been developing and producing crosslinkers and coupling agents for the sealant industry for over 28 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    

Since in Europe MEKO releasing sealants are under a lot of pressure, more and more customer are looking for low MEKO crosslinkers. Probably in 2017 MEKO releasing sealants will be banned from the European market for a big part.As a solution, now we are producing Acetoxime & Methyl Isobutyl Ketoxime based crosslinkers, like our PC7131, PC7133, PC7530, PC7531 etc.

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:

SiSiB® Silicones for Textile SiSiB® SILANE DONORS
SiSiB® Silicones Water Repellents SiSiB® Silicones for Personal Care
SiSiB® Silicone PU Additives SiSiB® Silicone Coating Additives
SiSiB® Silicone Masterbatch for Plastic SiSiB® STP (Silane Terminated Polymer)
SiSiB® Silane Crosslinkers SiSiB® Silane Coupling Agents