Hello Everyone,
When I bought Sweet Journey (CD25) the last owner included a list of suggestion that sailing friends of his had given him. One included bottom painting. What do you think:
1. Clean the bottom with Mineral Spirits
2. Paint the bottom with one light coat of bottom to which you have added a packet of house paint mildew inhibitor.
What do you think?
Thanks,
Bill
What do you think?
Moderator: Jim Walsh
-
Bill Jarrell
- Posts: 19
- Joined: Sep 8th, '05, 15:04
- Location: 1981 CD25 #806, Belfast, ME
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Oswego John
- Posts: 3535
- Joined: Feb 5th, '05, 20:42
- Location: '66 Typhoon "Grace", Hull # 42, Schooner "Ontario", CD 85D Hull #1
What do you think
Hi Bill,
Hmmm, what DO I think? What you were told probably will do no harm. I wonder what good it will do, if any.
If you think that there might be any greasy or oily residue on the hull, wiping it down with mineral spirits might remove the film. I don't see where house paint mildew inhibitor will do much good. When on the hard, the outside of the hull is exposed to air and not likely to have mildew. When in the salt water, I don't see how that mildew will form. Inside the hull is a different situation.
I see that your boat is in Maine, so I guess you sail in salt water. What I usually do to prep the hull for bottom paint is wash it down with a pressure washer set on fan spray. Never on fine jet. I inject detergent into the prewash. This usually cancels any oily deposits.
It might be psychological and I pretend it works, but I soak the barnacle rings with CLR, come back later and scrape them off with a dull putty knife. The "C" in CLR supposed to dissolve calcium. I don't know if it really helps. It's a mental crutch that makes me feel good that tells me that I tried real hard to get the buggers off the hull. A general sanding finishes the prep.
So, Bill, there you have it. That's what I think. I hope that some of it makes sense.
Have fun with your new boat.
O J
Hmmm, what DO I think? What you were told probably will do no harm. I wonder what good it will do, if any.
If you think that there might be any greasy or oily residue on the hull, wiping it down with mineral spirits might remove the film. I don't see where house paint mildew inhibitor will do much good. When on the hard, the outside of the hull is exposed to air and not likely to have mildew. When in the salt water, I don't see how that mildew will form. Inside the hull is a different situation.
I see that your boat is in Maine, so I guess you sail in salt water. What I usually do to prep the hull for bottom paint is wash it down with a pressure washer set on fan spray. Never on fine jet. I inject detergent into the prewash. This usually cancels any oily deposits.
It might be psychological and I pretend it works, but I soak the barnacle rings with CLR, come back later and scrape them off with a dull putty knife. The "C" in CLR supposed to dissolve calcium. I don't know if it really helps. It's a mental crutch that makes me feel good that tells me that I tried real hard to get the buggers off the hull. A general sanding finishes the prep.
So, Bill, there you have it. That's what I think. I hope that some of it makes sense.
Have fun with your new boat.
O J
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tartansailor
- Posts: 1527
- Joined: Aug 30th, '05, 13:55
- Location: CD25, Renaissance, Milton, DE
Interesting
My Dad told me never "guess" in front of my superiors, but since this is a social gathering, and we are all looking out for one another! right? I'll venture to say that the mineral spirits was intended to remove the worn out surface layer of anti-fouling paint, and the mildew inhibitor (which in these parts is quaternary ammonium chloride, a very potent poison) was intended to inhibit slime growth as an adjunct to copper. The two making the end result greater than the sum of two parts.
In the final analysis however, given the conditions in your venue, you need to determine the results and potential economy for yourself.
As far as my boat is concerned, I am going by the Paint Manufacturers recommendations to the letter.
Dick
In the final analysis however, given the conditions in your venue, you need to determine the results and potential economy for yourself.
As far as my boat is concerned, I am going by the Paint Manufacturers recommendations to the letter.
Dick
Viam Inveniam Aut Faciam
bottom paint
Bill
What advice does the paint mfg'r give ?
I'm far from being an expert but what i recall for prep has been
1> sand or remove old bottom paint ( depending on whether the new paint can be applied over the old paint ) till the surface is tight ( and waterproof which may require a - new - barrier coat ).
2> So many hours as paint mfg specifies before launch apply sufficient coats of new paint to last the sailing season - ie till marine growths overwhelm the coating which may be forstalled by judicious in water bottom cleaning.
3> If you want to try something no one else has done - try the practical approach - test it on some scrap under your control in your environment exactly as you will be using it before risking your hull on it.
IE - a buddy who worked for a paint co gave me some over run of what he purported was US Navy bottom paint - good stuff they had left over he said . Wrong was the worst I'd ever tried in my environment.
Good Luck
What advice does the paint mfg'r give ?
I'm far from being an expert but what i recall for prep has been
1> sand or remove old bottom paint ( depending on whether the new paint can be applied over the old paint ) till the surface is tight ( and waterproof which may require a - new - barrier coat ).
2> So many hours as paint mfg specifies before launch apply sufficient coats of new paint to last the sailing season - ie till marine growths overwhelm the coating which may be forstalled by judicious in water bottom cleaning.
3> If you want to try something no one else has done - try the practical approach - test it on some scrap under your control in your environment exactly as you will be using it before risking your hull on it.
IE - a buddy who worked for a paint co gave me some over run of what he purported was US Navy bottom paint - good stuff they had left over he said . Wrong was the worst I'd ever tried in my environment.
Good Luck