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Home > Rust Prevention

4PAK - Convenience Quart

review 26 Reviews +See Reviews
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4PAK - Convenience Quart

A full quart of RustSeal in four user-friendly 8oz. cans. Each can provides 2 coats of coverage for an approx. 12 sq. ft. area. Open only what you need. Best value for small or multiple projects. Mix or match colors.

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Part #: 51000
Color #1 
Color #2 
Color #3 
Color #4 

4PAK Overview

RustSeal - Stop Rust - Paint Over Rust

*Click HERE for more information on which color of RustSeal you should use.

RustSeal - Stop Rust - Paint Over Rust
  • 8oz cans are more convenient than a quart. Less clean-up. Less Waste.
  • Mix and match colors.
  • RustSeal is a paint-like substance that acts as a total rust inhibitor and preventive.
  • RustSeal has a consistency that is approximately that of paint and it has very good spreadability.
  • RustSeal chemically bonds to rusted steel to form a rock-hard, non-porous coating that won't crack, chip or peel.
  • RustSeal works by isolating metal from moisture. Without moisture present, steel can't rust.
  • RustSeal is highly surface tolerant and capable of adhering to almost any prepared substrate.

4PAK Features

  • High surface tolerance for many different types of applications
  • Apply directly over treated rust
  • Single component formula
  • High solids content
  • Widest array of (10) non-porous color formulas
  • Combines with atmospheric moisture to cure
  • Excellent surface penetration and adhesion
  • Forms permanent non-porous barrier against moisture and oxygen
  • Waterproof coating strengthened by repeated exposure to moisture
  • Mold and mildew resistant
  • High abrasion and chemical resistance
  • Repels fuels, oils, most acids & alkalis, and graffiti
  • Will not crack, flake or peel
  • Withstands temps up to 600°F (316°C)
  • Brush, roll or spray application
  • Superior flow and leveling
  • Flexible coating allowing expansion and contraction
  • Compatible with all paint systems
  • VOC compliant
  • Lead-Free

4PAK Applications

Automotive: chassis • floor pans • wheel wells fenders • trunks • engines • suspension parts • axles • roof drains • springs • doors • almost every part on a car except the exhaust!

Marine: engine rooms • hulls • masts • bilges • heat exchangers • decks • chain lockers • pumps • fuel tanks • boat trailers

Industrial: heavy transport • steam pipes • sealing concrete • air conditioning repair • fiberglass repair • rebar coating • steel roof • fuel and waste-water treatment tanks

Household: hand rails • support beams • lawn equipment • garage floors • pipe work • appliances • lead-based paint encapsulation


(4) 8oz of RustSeal will cover 50 sq. ft. with two coats.

Directions & Information

Instructional Videos

Watch Sam Memmolo use The KBS 3 Step Rust Prevention System to coat a rusty frame.

Check out how we use The KBS 3 Step Rust Prevention System to fix some rust spots on the bottom of our car doors.

Search The KBS Support Forum

WARNING: This product contains a chemical known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov

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Customer Reviews - Others Say It Best +See All Reviews
review 26 Total Reviews Sorting:
Rating Great Idea
I used to use the large cans and re-seal them up. I could usually get about 4 or 5 seals before the paint hardened in the can. It isn't fun wasting expensive paint. These are a great idea and to me worth it. Never had a problem with kbs.
  Did you find this helpful?    96 of 98 Found Helpful
Reviewed by:  from Jacksonville, FL. - 10/29/2015
Rating Great Product
Great product!
  Did you find this helpful?    96 of 102 Found Helpful
Reviewed by:  from South Dakota. - 9/27/2010
Restoring the truck with KBS is perfect, easy to put on, gets in the smallest cracks and looks wicked awesome when cured.
  Did you find this helpful?    78 of 80 Found Helpful
Reviewed by:  from Crystal City, TX. - 3/26/2012
Rating GREAT Product
Quality is superb. Is as good as powered coating.
  Did you find this helpful?    75 of 78 Found Helpful
Reviewed by:  from Tucson,AZ. - 7/28/2016
Rating Works great
Rust prevention for 1968 Mustang restomod
  Did you find this helpful?    56 of 57 Found Helpful
Reviewed by:  from Silverton, Oregon. - 9/29/2015
Rating Love This Stuff
Used this for auto restoration and ended up using it around the house also.Worked great for my clothes line posts and fencing.
  Did you find this helpful?    44 of 45 Found Helpful
Reviewed by:  from Carlisle, PA. - 6/26/2013
Rating Took my project to the next level!
Used it on my H1 door that got a bit of rust. This stuff is like iron!! awesome finish and was great to paint over.
  Did you find this helpful?    25 of 26 Found Helpful
Reviewed by:  from Racine, wi. - 5/25/2012
Rating Awesome Product
This 4pak worked awesome. Love having smaller cans so I can choose different colors. Great Product.
  Did you find this helpful?    25 of 30 Found Helpful
Reviewed by:  from Addison, IL. - 5/4/2011
Rating Loved this size
I loved this size because you don't have to worry about product drying up. Plus I was able to order different colors. The product worked great.
  Did you find this helpful?    19 of 20 Found Helpful
Reviewed by:  from Williamstown Ky. - 9/20/2014
Rating Great product, useless packaging
I love this product. It is a good alternative to powder coating and I will continue to buy it from time to time, but... The cans were stuck closed and were destroyed when attempting to pry them open. and There is no way to store unused product so any remaining will be hardened in a week. The product needs to be available in 4oz pouches that will allow air evacuation and storage of unused product. This would be the correct amount for small jobs and if remainder hardened, cost of the waste would not be so high.
  Did you find this helpful?   
Reviewed by:  from Magnolia, TX. - 4/27/2011
Review 4PAK - Convenience Quart
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