03-13-2010, 01:10 PM
Even with a pressure pot I get a few undesirables. If your not using one you really need to make sure all the other factors are working in your favour. Things like temperature & humidity come into aswell as the size of your castings & the style of mould you make/use. Im still a learner & learn everyday from my mistakes but have also had good success. Check out http://www.smoothon.com I highly recomend their products & they have excellent training videos/tutorials. I do do castings also.