How To Apply Pettit Unepoxy Plus Application Data
The information provided here has been reproduced courtesy of Pettit Paint Company. Wholesale Marine reproduced this information 2/22/2008.
GENERAL DESCRIPTION
Unepoxy Plus is an excellent, general purpose antifouling for boaters desiring
aggressive bottom protection in an easy to apply, cosmetically attractive
finish. Unepoxy Plus antifouling is resistant to algae, barnacles, grass, zebra
mussels, etc. Unepoxy Plus antifouling is equally effective in both fresh and
saltwater and is also ideal for trailered boats.
APPLICATION INFORMATION
Unepoxy is heavily loaded with 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 paint 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 Unepoxy more than 10% (12 ounces per gallon) or inadequate paint
film thickness will occur and premature erosion of the fi nish 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 several
times a month 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…..Modified Epoxy/Rosin
FINISH…..Flat
COLORS…..Blue, Green, Brown, Red, Black
COMPONENTS….One
CURING MECHANISM….Solvent Release
SOLIDS (theoretical)
By weight…..79 +/- 2%
By volume….50 +/- 2%
COVERAGE…..400 sq. ft/gal.
VOC….440 g/l max.
FLASH POINT….100F
APPLICATION DATA
METHOD…..Brush, Roller, Airless or Conventional Spray
NUMBER OF COATS….Two
DRY FILM THICKNESS PER COAT……2 mils
WET FILM THICKNESS PER COAT…..4 mils
APPLICATION TEMP…..40 F. Min. / 90F. Max.
DRY TIME (Hours)
To Recoat To Launch
90F 2 8
70F 4 16
40F 6 24
The above dry times are minimums.
Unepoxy may be recoated after the minimum time shown and launched up to 60 days after painting.
THINNERS…..120 Brushing Thinner 121 Spraying Thinner
ASSOCIATED PRODUCTS
95 Fiberglass Dewaxer
6999 Sandless Primer
120 Brushing Thinner
121 Spraying Thinner
SYSTEMS
Mix paint thoroughly to insure toxicants are evenly dispersed throughout the can. All surfaces must be clean, dry and
properly prepared prior to painting. Do not apply Unepoxy Plus on aluminum.
Previously Painted Surfaces:
If the previous coating is in good condition, thoroughly sand with 80 grit paper then solvent clean with 120 Brushing Thinner to remove residue. Apply two finish coats of Unepoxy. If the previous coating is soft or in poor condition, remove to the bare surface by sanding or using Pettit 9050 Bottom Paint Remover. Proceed with appropriate bare system as described below. Old tin copolymers should be removed or sealed with Pettit 6627 Tie Coat Primer before applying Unepoxy Plus.
Bare Fiberglass:
All bare fiberglass, regardless of age, should be thoroughly cleaned several times with Pettit 95 Fiberglass
Dewaxer or 120 Brushing Thinner. Sand thoroughly with 80 grit sandpaper to a dull, frosty finish and rewash the
sanded surface with 95 Fiberglass Dewaxer or 120 Brushing Thinner to remove sanding residue. Then apply two coats of
Unepoxy Plus, following application instructions. Careful observation of the above instructions will help ensure long term
adhesion of this and subsequent years antifouling paint. To eliminate the sanding operation, wash the fiberglass three times using Pettit 95 Dewaxer only. Then apply one coat of Pettit 6999 Sandless Primer. Consult the Sandless Primer label for complete application and antifouling topcoating instructions.
Bare Wood:
Sand entire surface with 80 grit paper; wash clean with 120 Brushing Thinner. Apply a coat of Unepoxy
thinned 25% with 120 Brushing Thinner, allow an overnight dry, lightly sand and wipe clean. Apply two finish coats of
Unepoxy Plus.
Bare Steel:
Sandblast or disc sand to a clean, bright fi nish and remove residue. Then either immediately apply two coats
of 6980 Rustlok Steel Primer, allowing each to dry only 1-2 hours prior to overcoating - OR - immediately apply one thin
coat of 6455 Metal Primer and allow to dry two hours; follow with two coats of 6627 Tie Coat Primer, allowing each to dry
two hours minimum. Apply two finish coats of Unepoxy Plus.
Keels - Lead:
Abrade surface to bright metal; clean off residue. 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 Unepoxy Plus.
Keels - Steel or Cast Iron:
Abrade surface to bright metal; clean off residue. 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
two coats of Pettit 6627 Tie Coat Primer, fi nish with two finish coats of Unepoxy Plus.
This is a simplied system for smaller areas designed for good performance and easy application by the boatyard professionalor do-it-yourselfer. For larger vessels or for application where a high performance, professional system is desired, please consult your local Pettit representative or the Pettit Technical Department.