My teak is now all sanded and oiled and ready to go back on...but when I pulled it off, it was not embedded with a silicone type sealant. Instead, it looked like they used some kind of white caulk that literally scraped off the bottom of the teak. With such a large area in contact with the boat, I'm concerned about too much (if any) adhesive property in whatever I embed it with. What are the recommended sealants for the teak boards...handrails? hatch slides? thanks!