Using rice flour for plastic material:
12 part water
3 part rice flour
2 part vinegar
1 part glycerin
Here I made a double batch and when wet the mix is very opaque. As it dries it becomes clearer but is still only 1/2 transparent. I dried this on tin foil in the dehydrator and it took about a week because of the size of the batch. The “top” has a grainy texture and the bottom has a rubbery texture. I’m not sure why there’s such a difference in feel. Its fairly strong when pulled apart and feels like a thin rubber.
This recipe is semi-opaque and feels like an animal or plant-like material.
5 part water
1.5 part corn starch
1 part vinegar
1/2 part glycerin
2 drops food coloring
Cook mixed ingredients until they form a gel-like substance. Here I didn’t boil the mixture and the plastic turned out semi-opaque. The texture is very similar to a thin animal skin or a thin hydrated leaf. It is strong and semi-stretchy to a point.
Lesson: Don’t pour starch plastic onto material that will bend easily!
This recipe:
5 parts water
1 1/2 part starch
1 part vinegar
1/2 part glycerin
This is the bioplastic recipe using:
7 parts water
1 part vinegar
1/2 part glycerine
1 1/2 parts starch
Here I poured it in thick circle molds, not sure how it’s going to dry - seems to be like dried hair gel so far. But some people say it should be dried for a few days. I tried adding in some soot as a pigment but it didn’t separate very much in the liquid, hence the speckles.
