since 2004 when we first entered Mexico. They have outlawed it also. Once, in about 2007, a marine store asked on the cruisers net (around La Paz area up to Puerto Escondido) if any one would be interested in some TBT additive. MANY people said "YES!". But none ever turned up and he never did get any.
We did not use it, but heard good words about the local bottom paint, both on the Baja and the mainland.
Also, in Puerto Escondido, PEMS – Channel 16 — Contact Owner Elvin – “Sealover” or “PEMS” is working with a company that applies a metal copper bottom that will last 10 years. And spending time in the Sea of Cortes ain't to bad!.......
Greg