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Antifouling Bottom
Paint
 | Antifouling Paint Characteristics
As you choose your paint and schedule your haulout, two important questions of timing
must be taken into account: how much drying time should you allow between coats and how
long can the new paint be left out of the water? Drying time between coats can vary from
ten minutes for
Teflon-based VC-17m to a 16-hour minimum for
Trilux.
It is important to check the manufacturer's recommendation in advance, both for the drying
time and for the recommended number of coats, because it can have a major effect on your
planning. At least as vital is to know how soon you must launch after painting. For a
trailered or dry winter stored boat, you would naturally choose one of the ablatives,
where the time is given as "indefinite." For example, our most popular modified
epoxy paints, BottomShield and
BottomPro Plus,
have drying times to recoat of four to six hours, and the maximum time allowable before
launch is sixty days. For the rosin-based sloughing paint,
Bottomkote,
used for slow cruisers and workboats, drying time to recoat is overnight and it must
launch within 48 hours.
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| Modified Epoxy Paints
One-part epoxy resins, which dry to
a tough, hard, reasonably smooth finish, cure by evaporation. Their less volatile solvent
concentrations keep the paint from attacking old coatings, so it can be applied over them.
They are durable and resist abrasion, adhere tenaciously to bare hulls and other finishes
and contain the highest biocide levels of any antifouling paint. However, they are
moderately difficult to remove when worn out, gradually lose effectiveness out of water
and are not as smooth or quick drying as some types of paint. |
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Copolymer Ablative
Paints
The water-soluble polymer resin that encapsulates each particle of biocide in
these paints is impervious to air, so the paint doesn’t lose effectiveness when boats
are hauled and re-launched. They continue to work as long as paint remains on the hull. In
addition, since there is no buildup of spent coating, they are reasonably easy to recoat.
Disadvantages are that scrubbing removes paint and shortens life span, thicker coats are
required (which adds weight and can be expensive) and ablatives are not as smooth or quick
drying as some other paints. |
Types of Bottom Paint
| Copper Antifouling Paints
 | The copper content, usually given as a percentage, is not the only factor in a paint's
effectiveness. Binder/ release, surface smoothness, copper as a percent of the dry film,
and film thickness also contribute. There are essentially two types of copper antifouling
paint-leaching paints and copolymers, also known as ablative paints.
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| Leaching paints with twice as much copper as copolymers are similar in effectiveness
because they leach high levels of copper initially and gradually taper off. Copolymers,
which frequently state copper content as a percentage of volume solids, are referring to
the copper that's left in the film once the solvents evaporate.
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| Copolymer copper paints tend to release copper at a constant rate over time, rather than
in a tapering pattern. And they do not release copper when out of the water, which may
lengthen the time between bottom paintings. |
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| Waterbased Antifoulings
| These contain little or no solvent and therefore have fewer VOCs (Volatile Organic
Compounds). Thinning is generally done with tap water. Waterbased antifoulings are EPA
approved, but still contain toxins, so empty containers and clean-up residue must be
disposed of properl |
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| Copper Thiocyonate
| Copper thiocyonate is a derivative of cuprous oxide, and is generally used over aluminum
by professionals and do-it-yourselfers as a replacement for tin-based antifouling. While
antifouling paints with copper thiocyonate will not cause corrosion, it is still advisable
to apply a primer to any underwater metal to increase adhesion and reduce the risk of
electrolysis. |
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| Tin Paints
| Tin paints, which do not cause electrolysis, may still be applied to aluminum boats
under federal regulation if they meet release rate standards, and are applied by a trained
and certified commercial painter. Licenses, usually issued by each state's department of
agriculture, govern both the sale and application of this paint and often prohibit
purchase by non-licensed persons. For this reason, BoatU.S. does not stock or order
tin-based bottom paint. |
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| Regulating Volatile Organic Compounds (VOCs)
| Solvents or thinners are used to liquefy paints. When solvents evaporate they become
volatile organic compounds (VOCs). State and federal agencies regulate VOCs because of
their detrimental effect on the ozone layer. As a result, sales restrictions may apply in
some locations. |
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Brands we carry at Yacht Works, Inc
| INTERLUX - Micro Extra
with Biolux
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Micron Extra combines the slime blocking power of Biolux™
with controlled solubility copolymer antifouling paint technology to provide long-lasting,
full-spectrum defense against fouling organisms. Micron Extra incorporates Biolux™
along with cuprous oxide to achieve complete protection against shell, weed and slime
fouling.
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The antifouling ingredients are chemically bonded into Micron
Extra’s copolymer matrix, which is engineered to gradually wear away as the boat
moves through the water, much like a bar of soap. This self-polishing process results in
the constant, controlled delivery of biocides from freshly exposed paint film surface, and
assures consistent, long-lasting performance and maximum efficiency.
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Micron Extra retains it’s antifouling effectiveness when
hauled and can be relaunched without repainting. The longevity of Micron Extra is related
to the amount of paint applied.
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Application Details for Micron Extra with Biolux
Area - Below water, Finish/Sheen - Matte, Number of Coats: 2-3
minimum, Method of application: Brush / Roller / Airless Spray / Conventional Spra, Pack
sizes: 1 US Quart / 1 US Gallon, Suitable for high speed boats? - No, Available
colors:Call for details
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| INTERLUX - Micron
CSC
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The 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.
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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
powerwash.
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Application Details for Micron CSC* |
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Area - Below Water, Finish/Sheen - Matte, Number of Coats: 2-3 minimum,
Method of application: Brush / Roller / Airless Spray / Conventional Spray, Pack
sizes: Available colors: 1 US Quart / 1 US Gallon, Suitable for high speed boats?
YES
| VC 17M
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With the Teflon® advantage for increased hull performance, VC
17m is Interlux’s world famous innovation in the field of drag reduction antifouling.
The original antifouling with "non-stick" technology.
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Metallic copper powder is added to VC 17m's thin Teflon film to
create a hard, super-smooth antifouling coating. Its Teflon®-based film shrugs off marine
growth, and the exceptional surface smoothness means boat speeds can actually increase by
as much as 10%!
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Application Details for VC 17m*
Area - Below water, Finish/Sheen - Matte, Converter/Curing -
YBA634 / YBA635 / YBA674, Thinner: V172, Number of Coats: 2-3, Method of
application: Roller / Airless Spray, Pack sizes: 0.75 US Quart, Suitable for high speed
boats? YES
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| Intrelux - Bottomkote
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| Pettit - Trinidad
| Trinidad aggressively combats even the
most torrid, tropical fouling conditions and at the same time reduces annual hull
maintenance. It's ideal for both power boats and sailboats.
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| Whether driven hard or cruised easy, Trinidad's hard epoxy
base produces an exceptionally durable finish for long-lasting performance.
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| Trinidad's high copper load will give year round service even
in the most heavily infested waters. Trinidad has excellent adhesion to fiberglass, wood
and steel hulls, and is easy to apply by brush, roller or spray. Its compatibility with
all properly prepared, hard, bottom paints allows safe overcoating without fear of
lifting.
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| Pettit - Unepoxy
Standard
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A high performance economy
antifouling paint which has been custom formulated to provide outstanding bottom
protection at a very affordable price.
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Unepoxy Plus is a modified epoxy
that dries to a hard finish able to withstand season-long use and abuse. It has excellent
adhesion to fiberglass, wood and properly primed steel hulls and is compatible over most
previously applied bottom paints.
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Compared to other traditional
modified epoxy antifoulants, Unepoxy Plus has more copper for the dollar making it the
right choice for the value conscious boat owner. Unepoxy is available in five popular
colors.
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| Pettit -
Copper Bronze Anti-Fouling
| This is a hard, modified epoxy antifoulant made
specifically in a cosmetically attractive bronze finish. Copper Bronze Antifouling is
equally effective in both fresh and salt water and is also ideal for trailered boats.
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For ordering contact us at
shipstore@yachtworks.net
SPECIAL SHIPPING RESTRICTIONS ON HAZARDOUS MATERIALS
Shipments of flammable or hazardous materials such as certain paints, varnishes,
flares, fire extinguishers and other compressed gases are regulated by the Department of
Transportation. Please note the following when ordering these items from our catalog:
| UPS Ground is available for all hazardous items shipping in the continental U.S.
except for certain safety signaling devices and stove alcohol.
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| UPS Ground delivery is not available in the U.S.V.I., Hawaii, Alaska, or Puerto
Rico. |
| Federal Express is available for all hazardous shipments except gallon containers
of paint, resin or other hazardous liquid. Priority Overnight is the only service
available. Hazardous shipments are not allowed to the U.S.V.I. Hazardous shipments can go
to most areas of Alaska and Hawaii-Call for details.
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| Quart sized products can be shipped UPS Ground, Federal Express, or Parcel Post.
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| BoatU.S. cannot ship hazardous items to APOs, FPOs or other foreign addresses.
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| Some UPS and FedEx shipments may be subject to a hazardous material surcharge.
See order form for details. |
| Hazardous items subject to surcharges are distinguished in the catalog by the
hazardous symbol above. |
Some paints may not be available in California or Michigan. Check the catalog
writeup, or ask your Sales Associate for assistance.
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