make sure you clean off all old silicone
Agaliha, I had this problem too and I followed Mikes instruction which works well. I got my silicone at westmarine and it was just black regular stuff, not the super bonding one. I had just about all seats open up and did them all that way over 2 days.I will have to do some again as they did not set right... Recommend doing one at a time and make sure you clean off all old silicone, even take out some past the leaking area. I put masking tape on the hull and wood and applied the silicone liberally between, then smooth out using a latex glove.I missed cleaning out the old stuff and did not get a gooc bond, the tape works well as this stuff is really sticky and hard to get off the wood and hull.good luck