One of the great advantages of Plastalin-Super is that it can be shed 99.9% bubble free! The mix is: 4 parts powder to 1 part water.
The consistency is then similar to milk, so much smoother than liquid Resin. Therefore, there are no bubbles in casting. Because of that,
there is no need to use a pressure pot (but I also have no pressure pot).
But it is not so good for complete models or for example "head's". Since Resin is still the best. Plastalin-Super is more a relief casting material.