Pettit Yacht Copper Antifouling Paint - How to Apply

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This information provided here has been reproduced courtesy of Pettit. Wholesale Marine reproduced this information on 3/24/2010.

GENERAL INFORMATION

-Good yet economical seasonal protection.
-Effective in cool fresh and saltwater where modest fouling prevails.
-Little or no paint build-up from year to year.

GENERAL DESCRIPTION

Due to its free leaching and easy chalking properties, Yacht Copper Paint is basically used on slower moving craft and in cool waters where modest fouling prevails. Yacht Copper offers seasonal control and is ideal for workboats, commercial fisherman and general boat yard use when good yet economical protection is desired. Although originally developed for wooden boats, Yacht Copper also permits easy application to properly prepared fiberglass, steel and previously applied coatings. By leaching and washing away paint buildup from year to year will be very slight and the surface can be easily cleaned. Yacht Copper paint may be applied over most aged hard antifouling coatings. Old soft antifouling paints must be completely removed before applying Yacht Copper Paint. Old tin copolymers must be removed completely or sealed with Pettit 6627 Tie Coat Primer before applying Yacht Copper Paint.

APPLICATION INFORMATION

Yacht Copper contains cuprous oxide. As a result of this there is a tendency for settling to occur, especially if the paint has been on the shelf for several months. It is necessary to thoroughly mix the paint before using. If possible shake the can of paint on a mechanical shaker. Before using check the sides and bottom of the can to make sure all the pigment has been mixed in. If mixing is going to be done with a wooden paddle or an electric drill mixer, pour off half of the liquid from the top of the can into another can and then properly mix in any settled pigment; then remix the two parts together thoroughly.

Adhere to all application instructions, precautions, conditions and limitations to obtain optimum performance. Refer to individual labels and tech sheets for detailed instructions when using associated products, etc. Do not thin Yacht Copper more than 10 percent (12 ounces per gallon) or inadequate paint fi lm thickness will occur and premature erosion of the finish will be likely.

SURFACE PREPARATION

Coating performance, in general, is proportional to the degree of surface preparation. Follow recommendations carefully, avoiding shortcuts. Inadequate preparation of surfaces will virtually assure inadequate coating performance.

MAINTENANCE

No antifouling paint can be effective under all conditions of exposure. Man made pollution and natural occurrences can adversely affect antifouling paint performance. Extreme hot and cold water temperatures, silt, dirt, oil, brackish water and even electrolysis can ruin an antifouling paint. Therefore, we strongly suggest that the bottom of the boat be checked regularly to make sure it is clean and that no growth is occurring. Lightly scrub the bottom with a soft brush to remove anything from the antifouling paint surface.

Scrubbing is particularly important with boats that are idle for extended periods of time. The coating is most effective when the boat is used periodically.

PHYSICAL DATA

VEHICLE TYPE.....Rosin/Rosin Oil
FINISH.....Semi-Gloss
COLOR.....1636 Red
COMPONENTS....One
CURING MECHANISM....Solvent Release
SOLIDS (theoretical)
By weight.....86 plus or minus 2 percent
By volume....72 plus or minus 2 percent
COVERAGE.....400 sq. ft/gal.
VOC....210 g/l (1.75 lbs/gal) as supplied
ACTIVE INGREDIENT....Cuprous Oxide 25.0 percent
FLASH POINT....105 degrees F

APPLICATION DATA

METHOD.....Brush, Roller, Airless or Conventional Spray
NUMBER OF COATS....Two
DRY FILM THICKNESS PER COAT....2.9 mils
WET FILM THICKNESS PER COAT...4.0 mils
APPLICATION TEMP.....40 degrees F. Min. / 90 degrees F. Max.
DRY TIME* (Hours)
To Recoat T o Launch
90 degrees F 8 6
70 degrees F 16 12
50 degrees F 24 24
*The above dry times are minimums.
Maximum dry time before launch is 48 hours at 70 degrees F. If the boat is hauled during the season, Yacht Copper will loose its effectiveness if left out of water longer than three days.
THINNERS.....120 Brushing Thinner
121 Spraying Thinner

ASSOCIATED PRODUCTS

4700/4701 High Build Epoxy Primer
6455/044 Metal Primer
6627 Tie-Coat Primer
6999 Sandless Primer
6980 Rustlok Primer
95 Fiberglass Dewaxer

SYSTEMS

The paint systems outlined below contain references to other Pettit products. Please read and understand the label and/or Technical Bulletin for these products as well to ensure that they are used properly. For further guidance, please contact your local Pettit salesman or the Pettit Customer Service Department at (800) 221-4466 between the hours of 8:30 a.m. and 4:30 p.m. EST.

Previously Painted Surfaces: If the previous coating is in good condition, thoroughly sand with 80-120 grit production paper and wipe clean with a rag dampened with Pettit 120 Brushing Thinner to remove sanding residue. Apply two coats of Yacht Copper Paint observing the proper dry times. If the previous coating is in poor condition, remove to the bare surface by sanding or using Pettit 9051 Bio Blast Paint Remover. Proceed with the appropriate bare system as described below. Old tin copolymer paints must be removed or may be sealed with Pettit 6627 Tie Coat Primer before applying Yacht Copper Paint.

Bare Fiberglass: All bare fiberglass, regardless of age, must be thoroughly cleaned using Pettit 95 Fiberglass Dewaxer and clean lint-free rags. Several cleanings may be necessary to ensure complete removal of contaminants. Change rags frequently during the dewaxing/cleaning process to ensure complete removal of contaminants rather than merely smearing them on the surface. New boats must be scrubbed with a detergent and water solution and rinsed with fresh water prior to dewaxing. After the surface has been dewaxed, sand it thoroughly with 80 grit production paper and rewash the sanded surfaces with Pettit 95 Dewaxer or 120 Brushing Thinner to remove sanding residue. Apply two coats of Yacht Copper Paint observing the proper dry times. If sanding is prohibited, as with certain vinyl-ester gelcoats, or is otherwise impractical, make sure the surface has been completely and thoroughly dewaxed and cleaned with Pettit 95 Fiberglass Dewaxer. Then apply one, thin, continuous coat of Pettit 6999 Sandless Primer. Topcoat with two coats of Yacht Copper Paint carefully following the topcoating instructions on the Sandless Primer label.

If the gelcoat is crazed or spider-cracked, sand the gelcoat with 80-120 grit paper to a dull, frosty finish; wipe clean with Pettit 120 Brushing Thinner. Follow with a coat of Pettit Protect 4700/4701 High Build Epoxy Primer; allow to dry overnight, sand with 80 grit paper and solvent clean before the application of Yacht Copper Paint.

Bare Wood: Sand the entire surface with 80 grit production paper and wipe clean with a rag dampened with Pettit 120 Brushing Thinner. Apply a coat of Yacht Copper Paint thinned 25 percent with 120 Brushing Thinner to penetrate and seal the wood. Fill any open seams with Pettit Seam Compound (7110 White or 7610 Mahogany) and allow to dry overnight. Apply two full coats of Yacht Copper Paint observing the proper dry times.

Bare Ferrocement: Apply a full coat of 4700/4701 High Build Epoxy Primer; after an overnight dry, sand well with 80 grit paper then solvent clean. Apply two finish coats of Yacht Copper Paint.

Bare Steel: Sandblast to SSPC-SP 6 commercial blast, blow off residue with clean, compressed air, and immediately apply two coats of 4700/4701 following application and recoat instructions. Alternatively, hand sand with 80 grit sandpaper or power hand tool clean, then remove residue with clean compressed air or clean, solvent dampened rags. Immediately apply one coat of Pettit 6980 Rustlok Steel Primer and let dry to a tack free state (usually 30 minutes to 2 hours, dependent on temperature). Then apply two coats of 4700/ 4701 High Build Epoxy Primer following application and recoat instructions. Apply two coats of Yacht Copper Paint.

Keels - Lead: Abrade surface to bright metal; wipe clean using Pettit 120 Brushing Thinner. Apply one thin coat of 6455/044 Metal Primer; allow to dry two hours. Apply one coat of Pettit 6627 Tie Coat Primer then, if fairing is required, apply Epoxy Fairing Compound. Follow with an additional coat of 6627 Tie Coat Primer per label directions. Apply two finish coats of Yacht Copper Paint.

Keels - Steel or Cast Iron: Abrade surface to bright metal; wipe clean using Pettit 120 Brushing Thinner. Apply one coat of 6980 Rustlok Steel Primer, allowing to dry only 1 - 2 hours prior to overcoating. Then, if fairing is required, apply Epoxy Fairing Compound followed by one coat of Pettit 6627 Tie Coat Primer. Apply two finish coats of Yacht Copper Paint.