How to Apply Pettit Horizons Application Data
The information provided here has been reproduced courtesy of Pettit Paint Company. Wholesale Marine reproduced this information 2/09/2008.
GENERAL DESCRIPTION
Horizons Affordable Ablative Antifouling Bottom Paint offers excellent protection
from fouling along with all of the benefi ts of ablative antifouling. Economically
priced, Horizons is heavily loaded with cuprous oxide and performs well in all
conditions including severe fouling waters. This product is the standard Ablative
Antifouling for many boatyards because of its many attributes and favorable
pricing.
APPLICATION INFORMATION
Horizons is heavily loaded with cuprous oxide. As a result of this loading 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 Horizons
more than 10% (12 ounces per gallon) or inadequate paint film thickness will
occur and premature erosion of the finish will be likely. Do not apply Horizons in
thick films or in more than four coats as poor adhesion may result. When applying
by roller use a short nap (3/16 inch maximum) roller cover.
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 self-cleaning
nature of the coating is most effective when the boat is used periodically.
PHYSICAL DATA
VEHICLE TYPE…..Synthetic Polymer/Rosin
ACTIVE INGREDIENT….Cuprous Oxide 47.5%
FINISH…..Flat
COLORS…..1250 Blue, 1350 Green,1650 Red, 1850 Black
COMPONENTS….1
CURING MECHANISM….Solvent Release
SOLIDS (theoretical)
By weight…..79 +/- 2%
By volume….48 +/- 2%
COVERAGE…..400 sq. ft/gal.
VOC….440 g/l max.
FLASH POINT….98F
APPLICATION DATA
METHOD…..Brush, Roller, Airless or
Conventional Spray
NUMBER OF COATS….2 or 3
DRY FILM THICKNESS PER COAT……2 mils
APPLICATION TEMP…..50F. Min. / 90F. Max.
DRY TIME (Hours)
To Recoat To Launch
90F 3 8
70F 6 16
50F 12 48
THINNER…..185 ACP-Thinner
ASSOCIATED PRODUCTS
95 Fiberglass Dewaxer
185 Ablative Thinner
4700/4701 High Build Epoxy Primer
6455/044 Metal Primer
6627 Tie-Coat Primer
6980 Rustlok Steel Primer
6999 Sandless Primer
SYSTEMS
Mix paint thoroughly to ensure toxicants are evenly dispersed throughout the can. All surfaces must be clean, dry and
properly prepared prior to painting. Do not apply Horizons on aluminum hulls or outdrives.
Previously Painted Surfaces: If the previous coating is in good condition, thoroughly sand with 80 grit paper then solvent
clean with 185 Ablative Thinner to remove residue. Apply two finish coats of Horizons. If the previous coating is soft or in
poor condition, remove to the bare surface by sanding or using a paint & varnish 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 Horizons.
Bare Fiberglass:
All bare fiberglass, regardless of age, should be thoroughly cleaned several times with Pettit 95 Fiberglass
Dewaxer or 120 Brushing Thinner. Sandantifouling paint. To eliminate the sanding operation, wash the fi berglass three times using Pettit 95 Fiberglass Dewaxer only. Then apply one coat of Pettit 6999 Sandless Primer. Consult the Sandless Primer label for complete application and antifouling topcoating
instructions. Apply two or three coats of Horizons.
Barrier Coat:
Fiberglass bottoms potentially can form osmotic blisters within the gelcoat and into the laminate. To render
the bottom as water impermeable as possible, prepare the fi berglass surface as mentioned above (sanding method) then
apply three coats of Pettit Protect 4700/4701 High Build Epoxy Primer per label directions. Apply two or three fi nish coatsof Horizons.
Blistered Fiberglass:
See Pettit Technical Bulletin TB-1000 Gelcoat Blister Repair and Prevention Specifi cation for detailed
instructions.
Bare Wood:
Sand entire surface with 80 grit paper; wash clean with 185 Ablative Thinner. Apply a coat of Horizons thinned
25% with 185 Ablative Thinner, allow an overnight dry, lightly sand and wipe clean. Apply two fi nish coats of Horizons
unthinned.
Bare Steel:
Sandblast or disc sand to a clean, bright fi nish and remove residue with clean, dry compressed air or a clean
brush. Immediately apply two coats of Pettit 4700/4701 High Build Epoxy Primer. Read and follow carefully the instructions on the 4700/4701 Epoxy Primer label. If the surface to be painted will be prepared using hand tools such as wire wheels or sanders, clean-off residue and immediately apply one coat of Pettit 6980 Rustlok Steel Primer. Let dry 1-2 hours and follow with two coats of 4700/4701 High Build Epoxy Primer. Read and follow carefully the instructions for application and topcoating on both primer labels. Apply two or three fi nish coats of Horizons.
Keels - Lead:
Abrade surface to bright metal; clean off residue. Apply one thin coat of 6455/044 Metal Primer; allow to dry
six hours. Apply one coat of 4700/4701 High Build Epoxy Primer then, if fairing is required, apply Epoxy Fairing Compound. Follow with an additional coat of 4700/4701 High Build Epoxy Primer per label directions. Apply two or three fi nish coats of Horizons.
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
one coat of 4700/4701 High Build Epoxy Primer, finish with two or three coats of Horizons.
Underwater Gear -
Stainless Steel and Bronze: Use the same system as for lead keels. This is a simplified system for
small areas designed for good performance and easy application by the boatyard professional or do-it-yourselfer. For larger
vessels or for applications where a high performance, professional system is desired, please consult your local Pettit representative or the Pettit Technical Department.