I put sikaflex in the keel joints and used the cheapest antifoul I could find in Toolstation. Both worked pretty well.
Toolstation are great. I’ve bought loads of stainless fixings off them for different jobs over the past year. I love the fact you can buy 200 stainless screws from them for less than you can buy a pack of 5 from some chandlers.
I’ve bought yacht varnish from them but never realised they did anti-foul. Thanks for the tip.