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shoestringsailor

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Posts: 30
Reply with quote  #1 
It's getting to that time of year again where I'm thinking about the plan of work to be done on Idris over the winter. One of the things I noticed last year was a few osmosis blisters at the waterline and the turn of the bilge. There's a great many layers of antifoul hiding the true extent of this and so I'm contemplating having her blasted at the yard when they crane her out so she can sit and dry (with the occasional pressure wash to remove the nasty osmotic acids) over the winter months. Next spring will then require much sanding,epoxy and coppercoating before she can go back in again. I'm wondering if any other Halcyon owners have been through this process and if so what level of damage they found? Is the gellcoat fairly thick on these old H27's? I would be grateful for any information.
Cheers, Steve.
Bert

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Posts: 103
Reply with quote  #2 
Are you sure it's osmosis and not blistering due to water getting in the many layers of antifouling
Cuan

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Posts: 14
Reply with quote  #3 
If you have a boot top and it doesn't overlap the antifouling, water can migrate between the two causing blisters in the boot top
shoestringsailor

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Posts: 30
Reply with quote  #4 
Aha, yes good point. The couple of blisters I speared last winter were definitely osmosis but it may not be as bad as it looks with the possibility of trapped water under antifoul. Maybe I'll have a closer look this winter before making a decision on it, another year isn't going to make any difference either way.
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