Bottom Painting Fibreglass boat first time
- Thread starter pescador
- Start date
Are you kidding?
dmurph
Well-Known Member
Nope. Pretty sure all the harsh stuff in the paint that used to stop growth has been banned. Better to just haul out a couple times and clean the growth off, as opposed to hauling out cleaning the growth off and maintaining and touching up the bottom paint
Huh.. I've been told by people who use ablative paint that it's essentially bare after 4 months in the water
dmurph
Well-Known Member
I’m no pro, I moored my boat for over 15 years at burrard civic in false creek which gets heavy growth, bottom paint didn’t seem that great to me. I’d watch the guys with no paint hulls pressure wash off and be done. Meanwhile I’m pressure washing the same and then buying expensive paints and going through that whole process, mind you just touch ups but still extra work and effort
Saxe Point
Well-Known Member
I prepped the bottom, put on two coats of interprotect barrier coat followed by two coats of bottom paint. It worked out great, but was brutal and I wouldn’t do it again. But once the bottom paint is on, touch up and subsequent coats are easy, and I do that myself. The first coat, and preparation required is what I wouldn’t ever do again.
Bottom paint is essential if you moor your boat, which I do. It works very well and keeps the growth off.
Bottom paint is essential if you moor your boat, which I do. It works very well and keeps the growth off.
Brando
Well-Known Member
interprotect provides a chemical bond being epoxy based but with a well cured older gelcoat there is no harm in adding some mechanical bond by sanding, a light soda blast would be even better but overkill in most cases.
Dmurph- do you know what paint was used on your hull, they’re definitely not all equal. micron csc is what have experience with and growth is essentially non existent. I wonder if you had something else that doesn’t perform the same.
Dmurph- do you know what paint was used on your hull, they’re definitely not all equal. micron csc is what have experience with and growth is essentially non existent. I wonder if you had something else that doesn’t perform the same.
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ab1752
Crew Member
Micron CSC – CA Fouling Control | Interlux
Micron CSC – CA is a multi-season antifouling paint based on Controlled Solubility Copolymer technology.
www.interlux.com
"-ca"....is the new junk for "canada": it would be pretty bad for the manufacturer to publish a false msds:
Substrates
Aluminium / Zinc-Galvanised Steel
GRP / FRP
Steel
Wood
Foxsea
Well-Known Member
Micron CSC is available here. The biocide is copper. I just purchased 2 gallons, locally.Micron CSC – CA Fouling Control | Interlux
Micron CSC – CA is a multi-season antifouling paint based on Controlled Solubility Copolymer technology.
"-ca"....is the new junk for "canada": it would be pretty bad for the manufacturer to publish a false msds:
Substrates
Aluminium / Zinc-Galvanised Steel
GRP / FRP
Steel
Wood
CSC-CA also indicates that it is NOT to be used on sterndrives.
MSDS sheets are for first aid. For manufacturer's recommendations, please read the Technical Data Information.
Foxsea
Well-Known Member
Sometimes people blame a product when it's operator error:
"This innovative copper-copolymer formula of Micron CSC provides a controlled release of antifouling biocide at the paint surface, which means that the longevity of the coating is related to the amount of paint applied. Micron CSC will not lose its effectiveness when hauled out of the water for extended periods of time (such as winter storage).* All that is needed to reactivate the paint in the spring is to wash the surface using a stiff brush or lightly power wash.*"
Foxsea
Well-Known Member
The biocide in CSC is copper. That, in sheets, was used on the old sailing ships for centuries.
Foxsea
Well-Known Member
Same treatment for the 20 knot Tea Clippers of the 1800's.
The White Cloud was built in the McKay Shipyard, in Boston. Donald McKay was born in Nova Scotia and had a brilliant career as an architect and builder of clipper ships. The White Cloud made the trip from New York to San Francisco in a record 88 days. That meant rounding Cape Horn. The skipper was also a Nova Scotian. The previous record was 200 days!
Trouutbeast
New Member
Interlux is no longer selling Micron in Canada. They have put up a procedure for using their other products on alu. It requires something like 5 coats of interprotect before adding the other products. If you know of any micron lying around you can probably sell it for a pretty penny.
Trouutbeast
New Member
NeverMind! I mixed up the micron with Trilux, whoops
Foxsea
Well-Known Member
Awesome, dude! We all make mistakes. A rare man admits to them.
Trouutbeast
New Member
Thanks! I make them often enough I would be a fool to not admit them.Awesome, dude! We all make mistakes. A rare man admits to them.
The reason I was looking into bottom paint for metals was to paint my outboard bracket along with the portion of skeg that does not trim out of the water. I think the micron is not suitable for outboard alloy. I was going to use Panaten as the boat is only in the water for 6 months or so. I have searched the forum a ton and I see mixed reviews with panaten. I did find a product called Desitin maximum strength which has a higher zinc content than panaten (40% vs 13%). I will report how it works at the end of the season.
Foxsea
Well-Known Member
You will not be disappointed. I couldn't immediately find Penanten so bought Desitin. You nailed it- it's the zinc content. Plus, it leaves you with wife-friendly hands. It has worked well for 2 seasons now. I smear it on the drive fairly generously. No, it's not a pretty sight but that's why you're checking out your wife, instead.
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