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Osmotic Blisters
- Brewbeck
- Scurvy Dog
- Posts: 23
- Joined: June 25th, 2017, 9:34 am
- Vessel Info: '86 Mariner
MV Endeavor - Location: Upper Mississippi
- Has thanked: 2 times
- Been thanked: 1 time
Osmotic Blisters
Good Morning!
The Endeavor gets lifted for hull and running gear inspections on Friday. I spoke to the marina mechanics yesterday and they confirmed my suspicion that there are, forgive my bad language, osmotic blisters. Don't know the extent but i'm prepared to deal with the issue. Seller had been previously advised but didn't want to put the $ into repair. I have been luck so far with other boats, but with a boat from this era I am not alarmed, yet.
I'm faced with blister repair or walking away from this boat. Opinions?
Also, what do you think about barrier coating? Worth it and does it fix the problem?
Wabasha Marina
1986 Mariner 3297
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- CYO Supporter
- Posts: 5818
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1594 times
Re: Osmotic Blisters
The repair is labour intensive if the correct practices are exercised, and the right materials are expensive so it's generally a pricey remedy if it's to be done right.
- Brewbeck
- Scurvy Dog
- Posts: 23
- Joined: June 25th, 2017, 9:34 am
- Vessel Info: '86 Mariner
MV Endeavor - Location: Upper Mississippi
- Has thanked: 2 times
- Been thanked: 1 time
Re: Osmotic Blisters
I'm considering a barrier coat, and had it done on a 25 Sea Ray, but have no experience whether it works over time. Have you heard any of the members discuss this process? Barrier coat at $115 (US) per ft. (including 3 coats bottom paint).
Wife says, "Walk away." I'm saying, "Let's look at them first."
Wabasha Marina
1986 Mariner 3297
- bud37
- Admiral
- Posts: 4689
- Joined: April 23rd, 2015, 10:22 pm
- Has thanked: 550 times
- Been thanked: 1150 times
Re: Osmotic Blisters
- Hugo
- First Mate
- Posts: 103
- Joined: September 26th, 2014, 2:24 pm
- Has thanked: 2 times
- Been thanked: 20 times
Re: Osmotic Blisters
Good luck.
- hausherrs
- First Mate
- Posts: 107
- Joined: July 19th, 2016, 9:30 am
- Vessel Info: 1996 Carver 400
- Location: Seabrook TX
- Has thanked: 5 times
- Been thanked: 10 times
Re: Osmotic Blisters
-
- CYO Supporter
- Posts: 5818
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1594 times
Re: Osmotic Blisters
How big are the blisters and what's the extent of their presence; a few, many, they cover the entire bottom?
- Brewbeck
- Scurvy Dog
- Posts: 23
- Joined: June 25th, 2017, 9:34 am
- Vessel Info: '86 Mariner
MV Endeavor - Location: Upper Mississippi
- Has thanked: 2 times
- Been thanked: 1 time
Re: Osmotic Blisters
The mechanic who has worked on the "new" boat says he noted and advised seller of blisters at haul out last year but she decided to take no action. The word he used was "peppered". I decided to have the boat lifted to see what's up, and before having the engines and genny inspected. I'll decide what, if anything, I want to do then. I got a quote of $3800 (US) for barrier coat and anti-fouling paint - boat length 32'. Blister filling extra but I combine lift costs and pressure washing to save a little. Yard master says best to wait until Fall when they aren't as busy and humidity and temperatures are more favorable.
So, Friday I get to see the scope of the problem. I'll pass on my observations. Thank you all for your input. It's always nice when your opinions and observations are consistent with my own!
Wabasha Marina
1986 Mariner 3297
- Brewbeck
- Scurvy Dog
- Posts: 23
- Joined: June 25th, 2017, 9:34 am
- Vessel Info: '86 Mariner
MV Endeavor - Location: Upper Mississippi
- Has thanked: 2 times
- Been thanked: 1 time
Re: Osmotic Blisters
I'm inclined to have them repaired and barrier coating applied. Yard manager says a SWAG at repair cost is $3500 (US) but no guarantee cause won't know until sanding the bottom is done. But, it's a winter lay-up kind of job so I'm just going to enjoy the boat until haul-out and git 'er done then.
The process involves cleaning, then sanding, then grinding them out, letting them dry, and then filling with vinyl ester; then followed by barrier coatings (3) (barrier coating is added cost.). Last step is anti-fouling paint, the hard surface type. Then wait until Spring! If I didn't love boats so much, it would be so much easier!
Wabasha Marina
1986 Mariner 3297
-
- Scurvy Dog
- Posts: 17
- Joined: November 4th, 2016, 12:07 pm
- Vessel Info: 1985 2987 Monterey, twin screws and loving life
- Location: Orange Beach, AL
- Been thanked: 4 times
Re: Osmotic Blisters
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