Instructables

Step 5: Hardening your mask.

Now you have to find a good recipes for the final covering.
I used raw white flour (1 cup) mixed with the previous 50/50 PVA glue (1 cup). It's important to add some kitchen salt as a fungicide to prevent mould developement.

Brush it over the mask 2-3 times.
Let it dry well , and you have done it.
 
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