Gender benders TBT is an additive that gives "antifouling" properties to the paint used on ships 'hulls, to prevent them becoming encrusted with barnacles and other shellfish. Today, many other items that are left in the water for long periods, such as fishing nets, are also protected with TBT paint.
男生女生變三丁基錫是一種油漆添加物，對於現代大洋中往來繁忙的漁船、貨輪，塗上含有三丁基錫的防鏽漆，輪槳便不畏藤壺、貝類附著；今天許多長期浸水的工具，包括漁網，也都會塗上這種讓附生貝類敬而遠之的防鏽漆。