Pettit 6980 Rustlok Steel Primer is a one-part, moisture-cured polyurethane coating designed for application over any steel or cast iron surface, including galvanized and stainless steel. This Primer contains an aluminum flake pigment which forms a dense barrier impervious to water. The result is excellent corrosion protection.
In addition, Rustlok utilizes polyurethane chemistry to offer tremendous adhesive strength and wetting ability. It is this combination that performs well even when applied over rusted surfaces.
Rustlok Steel Primer is recommended anytime an easy to apply, effective anti-corrosive barrier coat is desired. Available in Quart and Gallon sizes.
|Estimated DRY TIME at Temperature||To Recoat|
|10 degrees F||3 hours|
|30 degrees F||2-1/2 hours|
|50 degrees F||2 hours|
|70 degrees F||1-1/2 hours|
|90 degrees F||1/2 hour|
New Steel: Disc sand with 80 grit sandpaper or sandblast to clean bright metal. Wipe clean with Pettit T-10 (aka 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 T-10 (aka 120) Brushing Thinner and apply a minimum of three coats of Rustlok. Finish with 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 T-10 (aka 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.
Topside Finishes: All Pettit topside finishes are compatible with Rustlok Steel Primer. If the surface is sufficiently smooth, Pettit Easypoxy, Shipendec or Polypoxy may be applied directly over Rustlok. If the surface needs additional smoothing, use an undercoater as a base over the Rustlok. Use Pettit 6165 Yacht White Undercoater or 6149 Easypoxy Undercoater for Easypoxy or Shipendec topcoats and Pettit 4172/4027 Epoxy White Undercoater for Pettit Polypoxy topcoats. Remember to start the finish coats or undercoaters before the Rustlok dries hard. If the Rustlok dries hard, thorough sanding with 80 - 100 grit sandpaper is mandatory before topcoating.
December 1, 2022
This is a paint that if used correctly is simply awesome. Watch Pettit's youtube videos for advice if you're new to the product- but I love this stuff and have many applications over 15 years old and this is still holding up. If you properly apply and topcoat this primer you'll never worry about it again.
September 2, 2020
I have a steel ballast on my Sail Boat he did a really good job of covering it
April 28, 2014
used to prime steel pontoon house boat, Its the onlyprimer needed under antifouling paint, works great.
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