how to waterproof transom

[pfish]

Is there a product that seals the through hull transom bolts and fittings with out using glue? I want to be able to disassemble it in the future. Do you guy's use some sort of bedding compound?
Thanks

[motorfixer1]

I just use rtv sealer from the autoparts store, its cheap and works well. It also can be removed without damage to the finish of the hull.

[rstarny]

plumbers putty work well also and wont leave any residue if you want to repaint