Did you do your extraction in some sort of plastic vessell?
I ran into this problem when using mason jars or plastic jugs that had some sort of rubbery sealant under the lid. Like how a pop bottle has that little rubbery disk thing inside of it to help seal it to the bottle?
if your solvent touches this type of plastic/rubber or similar, it will break it down and it will end up in your product.
i know what youre talking about though. its almost like that clear rubbery adhesive stuff that they use to stick cologne samples into magazines and such. its stretchy, rubbery, and NOT DMT. lol
Coinci-Transcendentalism