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Add to CartPettit Rustlok is a one package moisture cured polyurethane coating designed for application over any steel or cast iron surface, including galvanized and stainless steel. Rustlok Steel Primer contains aluminum flake pigment which forms a dense, water impervious barrier. The result is excellent corrosion protection. In addition, Rustloks polyurethane chemistry offers tremendous adhesive strength and wetting ability. It is this combination that allows Rustlok to perform well even when applied over rusted surfaces. Rustlok is recommended anytime an easy to apply, effective anti-corrosive barrier coat is desired.
Pettit Brush Thinner: Use for brushing, rolling and clean-up
All Pettit, Z*Spar or Shipendec topside finishes are compatible with Rustlok. If the surface is sufficiently smooth, Pettit, Z*Spar or Shipendec enamels may be applied directly over Rustlok.
Specifications:
***WILL SHIP GROUND ONLY TO THE CONTIGUOUS 48 STATES ONLY***
APPLICATION DATA METHOD: Brush, Roller or Spray
NUMBER OF COATS: 3 Min.
DRY FILM THICKNESS PER COAT: 2 mils
COVERAGE: 350 sq. ft/gal.
APPLICATION TEMP: 10°F Min. / 90°F Max.
| Time to Recoat | |
| 10°F | 3 HRS |
| 30°F | 2-1/2 HRS |
| 50°F | 2 HRS |
| 70°F | 1-1/2 HRS |
| 90°F | 30 MIN |
THINNER: 120 Brushing
NEW STEEL: Disc sand with 80 grit sandpaper or sandblast to clean bright metal. Wipe clean with Pettit 120 Brushing Thinner and immediately apply at least three coats of Rustlok following the recoat instructions carefully. Finish with antifouling bottom paint or topside system.
RUSTED STEEL: Clean the surface by wire brushing, wire wheeling, or light sandblasting. All loose rust must be removed. Firmly attached rust does not have to be removed. Wipe the surface clean with Pettit 120 Brushing Thinner and apply a minimum of three coats of Rustlok. Finish with epoxy primer, an appropriate antifouling bottom paint or topside system.
GALVANIZED STEEL: Galvanized steel must be clean and free of oil or grease before it is painted. Thoroughly clean the surface with Pettit 120 Brushing Thinner and plenty of clean rags to ensure complete removal of contaminants. Then apply a minimum of three coats of Rustlok. Finish with antifouling bottom paint or topside system.
STAINLESS STEEL: Follow the "New Steel" system above.
DO NOT USE THIS PRODUCT ON ALUMINUM HULLS AND OUTDRIVES.
APPLICATION INFORMATION: Rustlok Steel Primer may be applied by brush, roller or spray. A minimum of three coats of Rustlok is recommended to achieve good, long-term corrosion protection. Four or more coats of Rustlok will yield excellent long-term results. Rustlok reacts with ambient moisture. To avoid gelation of the paint, keep containers tightly sealed when not in use. Thinning is not normally required and is not recommended. Follow the recommended dry time and recoat guidelines carefully. Once fully cured, Rustlok forms an extremely hard surface which is very difficult for other coatings to adhere to. If the dry to recoat time is exceeded, heavy sanding with 80 grit sandpaper is mandatory to achieve proper adhesion of subsequent coats of paint. To eliminate the labor of sanding, plan your work carefully so that each coat of Rustlok and the first application of topcoat (antifouling or topside enamel) will be done before the previous coat dries hard.
TOPCOATS:
ANTIFOULING BOTTOM PAINT: All Pettit antifouling bottom paints may be applied directly over Rustlok. Adhesion is always best when Rustlok is topcoated when it is still slightly tacky. If Rustlok is allowed to dry hard, thorough sanding with 80 - 100 grit sandpaper is recommended to ensure adequate adhesion of subsequent coats of paint.
TOPSIDE FINISHES: All Pettit, Z*Spar or Shipendec topside finishes are compatible with Rustlok. If the surface is sufficiently smooth, Pettit, Z*Spar or Shipendec enamels may be applied directly over Rustlok. If the surface needs additional smoothing, use an 6149 EZ Prime as a base over the Rustlok followed by the topside product of your choice. Remember to start the finish coats or primers before the Rustlok dries hard. If the Rustlok dries hard, thorough sanding with 80 - 100 grit sandpaper is mandatory before topcoating.
What is Pettit Rustlok Steel Anti-Corrosive Paint used for?
Pettit Rustlok Steel Anti-Corrosive Paint is a moisture-cured polyurethane coating designed for steel and cast iron surfaces, including galvanized and stainless steel. Its aluminum flake pigment forms a dense, water-impervious barrier, while its polyurethane chemistry provides strong adhesion and helps seal firmly attached rust.
Can Pettit Rustlok be applied directly over rusted steel?
Yes. Rusted steel should first be cleaned by wire brushing, wire wheeling, or light sandblasting to remove all loose rust. Firmly attached rust does not have to be removed. After cleaning and wiping the surface with Pettit 120 Brushing Thinner, apply a minimum of three coats of Rustlok.
Can Pettit Rustlok be used on galvanized and stainless steel?
Yes. Pettit Rustlok is designed for galvanized and stainless steel as well as steel and cast iron. Galvanized steel must be thoroughly cleaned and free of oil and grease before application. Stainless steel should be prepared using the New Steel system, including sanding or sandblasting, solvent cleaning, and application of at least three coats.
Can Pettit Rustlok be applied to aluminum hulls or outdrives?
No. Pettit Rustlok should not be used on aluminum hulls or outdrives. The product instructions specifically state that Rustlok is intended for steel, cast iron, galvanized steel, and stainless steel surfaces rather than aluminum hulls or outdrives.
How many coats of Pettit Rustlok are recommended?
A minimum of three coats of Pettit Rustlok is recommended for good, long-term corrosion protection, with each coat providing a 2-mil dry film thickness. Four or more coats are stated to provide excellent long-term results. Follow the specified recoat times carefully between coats.
What temperature range can Pettit Rustlok be applied in?
Pettit Rustlok can be applied from 10°F to 90°F. The specified recoat time varies with temperature, ranging from approximately 3 hours at 10°F to 30 minutes at 90°F. If the dry-to-recoat time is exceeded, the cured surface must be thoroughly sanded with 80-grit sandpaper before applying subsequent coatings.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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