I saw some kind of waterproof grease called green degrees supposed to be pretty good I thinking about using it.
Does it mix well ? Any good for heavy Equipment
Assuming you are talking about the Green Grease in the link above - the MSDS says it uses a lithium complex thickener, so it should be compatible with most other greases. Check your operators manual to see what type of grease is recommended, and what the greasing procedure is - some manufactures want you to rotate the cab after you grease the zerks, then grease them again.
"Green Grease" would not be my first choice for an excavator. I am sure it would be fine for the swing bearing, but there are less expensive (and easily available) greases that will work fine for the swing bearing also. A calcium or aluminum complex grease with moly would be a better choice for the pins.