rptb1
Member
Over the winter I've stripped the 30-something-year-old paint from the bottom of my 1983 Newbridge Coromandel, Tammy Norie, mostly in order to prepare her for an osmosis-prevention barrier. A lot of similar aged boats from Newbridge suffer from osmosis and I thought prevention was better than cure.
Under the old paint I find a lot of small circular bumps, a few millimetres across, and mostly below the waterline. Many of them have small cracks around them. If you dig at them they pop out, leaving a crater in the gelcoat only. There is no evidence of moisture or blistering behind them, or any damage to the laminate. They don't seem to fit the pattern of osmosis.
I'll insert a teaser picture here, but take a look at this Flickr album if you want to see more context.
Obviously I'm intersted in doing the right thing (whatever that is) before I add permanent layers of epoxy.
By the way, I'm looking at this today and am happy to scrape and dig (I can lay up glass and gelcoat as needed to fix things) so I can respond to requests and post more pictures.
Thanks!
Under the old paint I find a lot of small circular bumps, a few millimetres across, and mostly below the waterline. Many of them have small cracks around them. If you dig at them they pop out, leaving a crater in the gelcoat only. There is no evidence of moisture or blistering behind them, or any damage to the laminate. They don't seem to fit the pattern of osmosis.
I'll insert a teaser picture here, but take a look at this Flickr album if you want to see more context.
Obviously I'm intersted in doing the right thing (whatever that is) before I add permanent layers of epoxy.
By the way, I'm looking at this today and am happy to scrape and dig (I can lay up glass and gelcoat as needed to fix things) so I can respond to requests and post more pictures.
Thanks!
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