Hi everyone.
About a year ago I bought some Milliput modelling putty for a build I was working on at the time. I didn't use much at the time, so I stored it away for later. Fast forward to present day, and I'm working on a build which requires lots of scratch-building, so I got the Milliput back out to find that one of the sticks had developed a hard yellowy skin on the outside. It seemed to blend ok though after mixing it with the other stick, so I went ahead and applied it to the parts I'm working on. Now a week later it still hasn't fully hardened, and I'm having to scrape it off which is ruining parts of my build. I'm certain it was properly mixed, and i know I'm a fool for not testing it. I'm kicking myself over it now.
Has anyone else experienced this with Milliput? Can anyone recommend a better brand of putty that will actually last in storage? Or is this a common trait for putty in general?
Thanks
Chris