Can you test some on some scrap, that's the best way to tell.
I've not sprayed tamiya but have used various other Aerosols over faskolor without any problem.
Make sure the Faskolor is completely cured, ideally heat with a heat gun prior to applying the aerosol. Then you need to mist on the first couple of coats and dry with a heat gun in between coats. Then you can put a slightly thicker coat on but lots of thin coats heat dried in between won't hurt.
HTH
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