Tbh Kwacky thinking about it I had the same issue of excessive chain lube when I installed my chain and it also was the horrible white muck.
As I never put a drop on it was the wax the manufacturer had applied. Even
though I wiped the excess off I still got white jizz on my tyre for a while
![Blush (blush)](./images/smilies/emoticon-0111-blush.gif)