YOU SAID:

slap some flex seal (trade mark) right on there

INTO JAPANESE

その上にフレックスシール（商標）をたたいてください。

BACK INTO ENGLISH

Tap Flex Seal (trademark) on it.

INTO JAPANESE

その上にフレックスシール（商標）をタップします。

BACK INTO ENGLISH

Tap Flex Seal (trademark) on it.