OS 9000 Phenyl tris silane 34036-80-1 Honeywell Crosslinking / Coupling / Curing Agents >> Silane Silicones (Si) SEALANT ADHESIVE Phenyl tris (MEKO) silane. OS-9000 is clear and almost colorless fluid with a typical smell (MEKO). The product readily hydrolyzes upon contact with moisture. The product is used as a crosslinker in the manufacturing of 1-part neutral cure silicone sealant and will allow the skilled formulator to develop low modulus sealants with high movement capability. Using OS-9000 in sealant-formulations will also provide improved tear-resistance and heat-resistance. Another important advantage of using OS-9000 in silicone sealants is that extended tooling times can be achieved without jeopardizing crack-resistance. Phenyl tris (MEKO) silane. Used as a crosslinker in the production of adhesives and 1-part neutral cure silicone sealants. Gives low modulus sealants with high movement capability. Provides improved tear and heat resistance. Offers extended tooling times without jeopardizing crack-resistance.