Question about Iron Golem

[Game]

Hello I'm curious about Iron golems damage reduction, is there any reason to get it above 100%, or is it 75% like on players? Except in the case of Amplify Damage hitting my Iron golem is there any chance the immune will be broken?

Also is the Iron golem maximum resistance 95%?

Wondering just how "immune" Iron golem can really be

Amplify Damage will lower damage reduction, it will break it just like Amplify Damage can potentially break monsters immunity to physical. There is no max resist on golem, it can go however high you want it to.