Thanks guys. Ted, I’ve decided to use the “other” lower copper concentration paint from Petit. I just don’t want to risk,getting turned back at the border. Its a hard non ablative paint. It’s going onto Trinidad SR. I talked to the people at Trinidad and they said it could go on the Trinidad with only sanding.
So orbital sander, with shop vac attachments. I’ve got all of those. I’m not going to go nuts with it, that’s for sure. And yes to the respirator. Mine’s due for replacement. It’s 10 years old now.
Jim
Jim:
I am surprised to see you posting this query, with all of your experience. Your boat is kept in the river at Steveston, right? So your need for antifouling arises through your extensive cruising in the Salt Chuck. Once you return to your river moorage, all that has grown on the bottom dies and falls away.
Whatever paint you have on your bottom has been well cured and unless there is some chemical incompatibility, anything new will have no trouble bonding to it. Your confirmation of this comes from your comment about being told by the Trinidad folks that all you need is sanding. Naturally, they have a standard response to such questions, without any knowledge of your specific circumstances (maybe I am being cynical?). I would be real surprised if anything more than a good washdown is required.
If you were operating a competitive racing sailboat, maybe a smoother bottom would be warranted. Without such critical needs, you should be able to power wash, let dry, repaint, splash.
For the past three haulouts I have used the Petit Water based Hydrocoat, that is touted as ablative, no VOCs, no buildup, no sanding required. Costs less than Trinidad and goes on with only power washing for prep. I am happy with its antifouling properties, though I do get barnacles on the running gear, so also use the Rustoleum spray galvanizing to cover the running gear.