SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING SAME

Provided is a silane coupling agent composition with which it is possible to obtain a rubber composition having excellent scorch resistance and a crosslinked product of a rubber composition having excellent viscoelastic properties. The silane coupling agent composition of the invention includes a silane compound and a protein denaturant and/or a silanization reaction accelerator, in which the silane compound includes a first silane compound represented by the following Formula (1) and a second silane compound represented by the following Formula (11):