TF2 is a brand of bike lube from the UK, brand, as in there are lots of different products which all have TF2 in the title.
For the OP, your question is a bit too vague, what fork, and which TF2 product? Add to that, confusing terminology, the term Shock is normally reserved for the rear, Forks for up front.
For cleaning after use, just water will be fine, if adding product to them, would be using whatever the manufacture specs,, not a general lube on fork seals