Sealing Bottom Hatch Question

Ok since Ive got a full hatch and the bottom when closed rests on the back end of the frame..
How do I go about sealing that area so water wont get up into the galley floor area... or dust for that matter..
Classic Finn
How do I go about sealing that area so water wont get up into the galley floor area... or dust for that matter..


Classic Finn
