Personally I prefer chicken fried rice,at least for eating.When I cook rice,there is no need for epoxy binder,it sticks fine,although I can not claim its vibration damping.It shure feeels like a brick in my stomach.
On corn,I would think it may pop with the heat of exotherm.Butter may be a good surfactant and air release agent.
Seriousley,I have in the past used puffed wheat and or puffed rice and epoxy to fill large viods for backup on large molds.The material is noted as named E/W or E/R.
Regards
Larry