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Pettit Aluma Protect 4400/4401 is a 2 part strontium chromate primer designed to form the ideal barrier coat over roughed bare aluminum. This is the appropriate epoxy to use when aluminum has been sandblasted, sanded or ground so that a tooth is present. For smooth aluminum, choose Pettit Metal Primer 6455/044.
Aluma Protect provides maximum resistance to fresh or salt water, thus eliminating corrosion. This complete coating system resists water, industrial chemical fumes, and very humid environments. Intended to be used as a primary coat over bare aluminum hulls and outdrives. Aluma Protect 4400/4401 will chalk if not topcoated. Two coats are recommended over sandblasted aluminum. Then overcoat with Pettit Protect 4700 or Tie Coat 6627 for optimum results before finishing with 2-3 coats of Alumacoat SR.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
|DRY TIMESubstrate Temp||To Recoat||To Bottom Paint||To Launch|
|90 degrees F||1 - 24 hours||1 - 8 hours||48 hours|
|70 degrees F||4 - 96 hours||4 - 16 hours||72 hours|
|50 degrees F||8 - 192 hours||8 - 24 hours||120 hours|
|PHYSICAL DATA||APPLICATION DATA||.|
|VEHICLE TYPE||Epoxy/Polyamide||METHOD||Brush, Roller, Airless or Conventional Spray|
|FINISH||Low Luster||INDUCTION PERIOD||15 minutes at 70 degrees F|
|COLOR||Bright Yellow||NUMBER OF COATS||1 or more|
|COMPONENTS||2||DRY FILM THICKNESS PER COAT||1 mil (3.6 wet mils)|
|MIX RATIO (A/B)||1 to 1 (by volume)||APPLICATION TEMP (air & substrate)||50 degrees F. Minimum; 90 degrees F. Maximum|
|CURING MECHANISM||Chemical Cure||POT LIFE||6 hrs. at 90 degrees F / 10 hrs. at 70 degrees F / 20 hrs. at 50 degrees F|
|SOLIDS (theoretical):||By weight 45 +or- 2 percent; By volume 28 +or- 2 percent||THINNER||97 Epoxy Thinner|
|COVERAGE||450 sq. ft/gal.||.|
|VOC||596 g/l max. (admixed)||.|
|FLASH POINT||60 degrees F Part A / 40 degrees F Part B||.|
Bare Steel: Not recommended - use Pettit Protect 4700/4701 for steel surfaces.
Bare Aluminum, Hulls and Outdrives: 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 degrees 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.
Previously Primed Surfaces: Aluma Protect Aluminum Epoxy Primer 4400/4401 may be applied over existing two part epoxy finishes, provided they are in sound condition. Brush-off sandblasting or very heavy sanding with 60 grit sandpaper 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 is applied. All existing two package epoxy finishes 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.