APPLICATION DATA METHOD: Brush, Roller, Airless or Conventional Spray
NUMBER OF COATS: 1 or more
DRY FILM THICKNESS PER COAT: 1 mils (3.6 wet mils)
COVERAGE: 450 sq. ft/gal.
APPLICATION TEMP: 50°F Min. / 90°F Max.
THINNER: 97 Epoxy Thinner
||To Bottom Paint
*If these recommended intervals are exceeded, sand thoroughly with 80 grit sandpaper before recoating or applying bottom paint.
PREVIOUSLY PAINTED SURFACES: Aluma Protect Aluminum Epoxy Primer 4400/4401 may be applied over existing two part epoxy ﬁ nishes, provided they are in sound condition. Brush-off sandblasting or very heavy sanding with 60 grit sandpaper is required to maintain maximum adhesion. Then apply one or two coats 4400/4401 per instructions. Remember, coating performance is only as good as the surface to which it’s applied. All existing two package epoxy ﬁ nishes in poor condition, as well as all one package primers and bottom paints, should be removed completely and the appropriate bare aluminum system as described above should be followed before using Aluma Protect Aluminum Epoxy Primer 4400/4401. Aluma Protect Aluminum Epoxy Primer is not recommended for use over antifouling paints.
STEEL HULLS: Not recommended - use Pettit Protect 4700/4701 for steel surfaces.
ALUMINUM: Sandblast (using non-metallic media) or disc sand the aluminum to clean, bright metal. Wipe clean of residue and immediately apply one coat of Aluma Protect Aluminum Epoxy Primer 4400/4401. At 70°F let dry 4 hours minimum, 96 hours maximum, and apply an additional coat followed by two coats of Pettit Protect High Build Epoxy Primer 4700/4701 following application and recoat instructions.
APPLICATION INFORMATION: Stir both components thoroughly. Mix the two components together in the ratio of 1 part of Component A to 1 part of Component B by volume. Allow to stand 15 minutes at approximately 70° before using. (Allow to stand at least 30 minutes if temperature is between 50° and 65°F) May be applied by brush, roller, conventional or airless spray. Thinning is not normally required for application, however, small amounts of 97 Epoxy Thinner may be used if necessary to facilitate application. Wet ﬁ lm thickness should be 3.6 mils per coat, which yields 1.0 mil dry ﬁ lm thickness. A wet ﬁ lm thickness gauge should be used to monitor paint application. One or two coats of Aluma Protect 4400/4401 should be overcoated with Pettit Protect 4700/4701 to provide a corrosion and chemical resistant barrier for use on all aluminum craft and surfaces. 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. Degrease aluminum by wiping with 97 Epoxy Thinner. Sandblast, sand or grind the surface to achieve a good adhesion proﬁ le.
Pettit Technical Bulletin Underwater Metal Systems