Ahh ok. I have never used one so I wouldn't know
I was going down the lines of Hydro and Hydraulic as I know its very sensitive to pressure.
now I have done a bit of home work I know why its a problem when Messy and hard to remove. I'll get back under my rock. I didn't fully understand what the die was for. I just found it a read a bit and can now see the issues that would be involved with Hydraulic oil.
