it's 'sort of" drying.....Originally Posted by CCWKen
I suspect that your solution is removing the plasticiser that has separated out, and possibly some of the top layer of plastic.
The plasticiser is added to make the material literally "plastic", i.e. moldable, malleable, flexible.
Without it, the "plastic" becomes brittle, and the leaking plasticiser may smell bad. The plastic may also break down to a smelly product.
if you wipe off the plasticiser, and remove the top layer of degraded plastic, the smell is reduced or eliminated. The same result can be obtained by scraping off the surface, which I have done.