Biro Ball point

[Kohe]

Can you tell me how to remove biro marks from a leaky pen off car fabric upholstery please

[Space cat]

Biro ink is alcohol based so try meths or surgical spirit first. Whatever you choose, the trick is to dab. If you rub you'll only spread the stain. Another solvent worth trying - carefully - is sold here as sticky label remover.

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Their base is so secret, even the space cats don't know where they are.