Removing Tree Pitch?

[Grizzled Ian]

I wonder if eucalyptus oil or tea-tree oil work as solvents for tree pitch. I have no idea if either of them stains woollen tartan fabric.

Now, I'm not expecting answers to my ponderings above, but I do thank Todd for the idea about testing offcuts. Who would have thought that about mayonnaise? And to think, they expect us to eat that stuff!