sjmac
Hi there
Excuse my ignorance but I am fairly new to Sonata’s and ownership in general.
I noted at the end of last season that the antifoul had built up so many layers it was starting to crack and look unsightly. I thought it would be a good idea to remove it. I am starting to regret that decision.
Firstly I would appreciate feedback / recomendations as to how best to remove the old antifoul.
Secondly I was suprised when I started to scrape the hull at the front that there appears to be metal not GRP that I scrape down to? Is this normal? How should it be dealt with?
Any thoughts would be appreciated.
Thanks Scott 
fmeredith
It depends on how flakey your antifoul is. You could try scraping it off with a 50mm paint scraper (you need one that is not too flexible), be careful not to break into the gel coat.
Alternativly you could use an Antifoul stripper, International Paints make one. If you go this route be prepared for a messy operation.
When you get the bulk of the antifoul off you can disolve the remnants with plenty of acetone (wear mask, gogles and gloves).
The scraper followed by acetone is the best solution, it takes a while to get the knack but keep trying.
sjmac
Hi there
Thanks for the thoughts, turns out that the material that i can not scrape through that i thought was lead, is actually a layer to protect from osmosis.
The scraper worked fine, although it is a horrid job!!!
scott 
StevenRolland
I do not know much about the subject, but it is probably worth remembering that you should not dry sand antifoul as the dust will be toxic.
I don’t think there should be any metal except the very front where the anchor fairlead is.