SailNet Community - View Single Post - Yards or companies that do barrier coating in Annapolis area?
View Single Post
post #30 of Old 04-01-2009
Senior Member
T37Chef's Avatar
Join Date: Oct 2006
Location: Maryland USA
Posts: 4,884
Thanks: 90
Thanked 64 Times in 44 Posts
Rep Power: 11
Originally Posted by Maine Sail View Post
Most hard paints are ineffective after a haul out. No matter how much you want them to work they are toast. If the paint becomes ineffective due to time in water or a haul out what is the point of having a hard paint under an ablative. It will be as effective as the barrier coat after the first season. It is a total waste of time if you are thinking it will offer any protection if your ablative layers wash away.
In a recent post on a similar topic I said I would consider using a hard paint for the first coat...may I retract that statement? When I did my bottom repair I used only ablatives, and now I am glad I did because what MS states makes total sense.

Below shows two coats of black ablative over the barrier coat, followed by one coat of blue ablative:

For the record, I spent the better part of a day sanding my hull using many 60 grit sanding disks after the blasting job was done. Maybe he didn't do as good as job as he should have blasting the hull? Maybe it was because there was years of hard paint build up, the boat is a 1982?

Dunno know, but the blasting did take off most of it (99%) and there was a lot to remove. I wanted to be sure, so I sanded till all I saw was pure white gel coat. So, three years now with the boat being stored in the water year round and I have found zero signs of blistering, voids, etc.

Here is what it looked like after he was done (yes, those a hundreds of tiny blisters about the size of a baby pea):


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by T37Chef; 04-01-2009 at 08:00 PM.
T37Chef is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome