Re: bottom paint striper
Gary it depends on how old the bottom coat is. The method doesnt have to change but safety is a valid concern. Older bottom paint contained TBT, a chemical that inhibited the growth of aquatic critters on the paint. It is extremely toxic stuff and requires a license to buy as of a couple years ago. You definitely do not want to be sanding on the stuff. I would avoid using chemical strippers, as well. Depending on the scope of your project, I would be inclined to use an industrial power washer then recoat with new bottom paint.<br /><br />Edit: bottom paint containing TBT is still being made on the East Coast (ref: Sea Hawk Island 44 Plus bottom coat), but it cannot be sold in the US. All of it is shipped to the Caribbean for sell there. Most paint stores have or can get a small bottle of TBT ($15) to be mixed with any paint to inhibit mold on paint used in high humidity locations. I know of one boatyard local to me that will hire a licensed person to come in, witness the little bottle of TBT being poured into the bottom paint, and then apply the paint to a boat. The painters wear exposure suits with breathing apparatus. Due to the cost, most people opt for the non-TBT bottom coat.
