Pentamethylphenyl dihydrotrisiloxane has good compatibility when in combination with methyl silicone oil, liquid silicone rubber, phenyl silicone rubber and phenyl silicone resin. It can be used as crosslinking agent for silicone rubber, phenyl silicone rubber and phenyl silicon resin. Pentamethylphenyl dihydrotrisiloxane IOTA 2238-IOTA (phenylsilicone.com)