Mastercoat® Ultimate Permanent Rust Sealer SILVER Primer, Original & Sprayable Slim QUART

RATE DISCOUNT AVAILABLE. 2 quarts for 102.00, 3 for 144.00, and 4 quarts for 180.00 plus shipping.

Color: silver. Each quart covers 100 square feet. Coverage is approximate. Use within one year of purchase.

FOR SPRAYING ON:  Try Mastercoat® Permanent Rust Sealer SPRAYABLE SLIM! No reduction necessary. Same great product at the same low price, only ready to spray right out of the can! 

RATE DISCOUNT: Choose quantity and discount will show in the shopping cart. You may also choose SPRAYABLE SLIM from this page for a combo discount.

SHIPPING: Ships Ground only. We ship M-F except for holidays from NJ, no weekend shipping. Ships to the USA ONLY (lower 48 states). We're sorry, we are unable to ship to Canada, PR, HI, AK. WE DO NOT SHIP INTERNATIONALLY AND DO NOT HAVE DISTRIBUTORS OUTSIDE OF THE USA AT THIS TIME.

For data sheets, scroll to bottom of the page.

Mastercoat: Some of the toughest paints on earth!

WHY IS MASTERCOAT PERMANENT RUST SEALER SILVER AND NOT BLACK?

FACT: There is no such thing as a black rust sealer. Mastercoat Permanent Rust Sealer is SILVER and not black because the aluminum pigment blocks the oxygen and the resin blocks the moisture. Together, this creates an AIR TIGHT SEAL, which encapsulates and prevents rust from coming back or coming through the paint. Black "rust sealers" only have the resin to block the moisture, so because it is not air tight, the rust will come through the paint job sooner than later.

FACT: No paint in existence will stop or prevent rust permanently in one coat. This system requires two coats of rust sealer and one coat of a top coat to create a rust proof barrier. If a paint is claiming to stop or prevent rust in one coat, it's just not possible and you'll be repainting again in no time because rust will come through the paint job.

Which Mastercoat Permanent Rust Sealer should I choose?

If you are BRUSHING it on, choose Mastercoat Permanent Rust Sealer ORIGINAL.

If you are spraying it through a gun or coating the inside of a gas tank, choose Mastercoat Permanent Rust Sealer SLIM.

All varieties of Mastercoat Permanent Rust Sealer achieve the same long lasting results! The type you choose only depends on how you want to apply it.

PRO TIP: Purchased one type or the other and then changed your mind about how you want to apply it? No problem! Mastercoat Permanent Rust Sealer Original can be sprayed with 10% reduction with MCT101 Thinner or urethane reducer, and Mastercoat Permanent Rust Sealer Sprayable Slim can be brushed but goes on even better with a 4 inch foam roller.


Mastercoat Permanent Rust Sealer is not only for the chassis, but for the whole body.



WARNING: for cleaning of the surface before paint, if not using Metal Prep or metal prep of a different brand, we recommend using mineral spirits. THIS PRODUCT MAY NOT BE COMPATIBLE WITH SOME CLEANERS ON THE MARKET. USE THEM AT YOUR OWN RISK.



The entire vehicle are completely primed inside and out, top and bottom with the Mastercoat Permanent Rust Sealer.  In most cases, an epoxy primer would go over it for blocking purposes, then followed by a topcoat for paint jobs that will go 20+ years.

Special note: two coats of Mastercoat Permanent Rust Sealer, one coat of epoxy primer, and a color coat will last outdoors for 20 years. This system is top of the line for prolonged outdoor exposure.



This has been demonstrated numerous times in the industrial environments, such as the Pittsburgh Homestead High Level Bridge, which had less than 5% corrosion after 14 years. This rust sealer is optimal for conveyor belts for coal generating plants and stands up to coal dust corrosion.



Mastercoat Permanent Rust Sealer is also ideal for roof applications, commercial and non-commercial.


A lot of companies use the term "rust preventive paint" very loosely. A rust preventive paint can be any kind of paint. Any type of paint will prevent rust, but for how long? There are many types of rust preventive paints, but Mastercoat rust preventive paint systems are the industrial coatings standard for long-term rust prevention.


Instructions

Easy to use! Sandblasting the surface is always optimal, but if sandblasting is not practical, remove loose scale with a stiff wire brush, wire wheel, or grinder. For previously coated surfaces, remove any loose, cracked, or peeling paint with a wire brush and scuff with 220 grit sandpaper. Stir thoroughly before use and wear protective gloves. Coating may be applied by brush, roller, or spray. For spraying, reduce 10% with our MCT101 or urethane reducer. For use as a primer, apply TWO regular coats minimum and then apply Mastercoat Chassis Black or Mastercoat AG111 as a topcoat or any topcoat of your choosing. Coating must be completely dry to touch before recoating. Recoat time: within 48 hours. If you cannot apply the next coat within 48 hours, scuff surface with 220 grit sandpaper. Beyond 7 days after last coat: scuff with 220 sandpaper and wipe surface with MCT101 thinner. For pitted surfaces, additional coats may be applied until pits are filled in. Apply three coats for use as a finish coat. This coating is best used in 50% relative humidity. Do not apply while it is raining or during other types of precipitation. Do not apply if ambient temperature and/or surface temperature is under 35 degrees fahrenheit. Remove scale and coat entire panel, front and back with a minimum of two coats, three if not topcoating.

Testimonials


The three coat polyurethane system in action! This bridge was marginally prepared using wire wheels and grinders. Due to a lead paint hazard, it was overcoated with two coats of permanent rust sealer and one coat of 111 topcoat. An inspection 14 years later revealed less than 5% corrosion. The bridge is located in Pittsburgh, PA. Bridges done with this three coat system have generally a 25 year service life before repainting.

FABRIC SHIELD, INC.

"After application of your MasterSeries finish, we were astounded by the results! At the end of 9 months of exposure to our chemicals, your product showed no signs of breakdown. At this point in time, we are usually descaling and sanding our equipment and repainting with our previous epoxy anti-corrosive paints. As you know, our flame-proofing chemicals being composed of salts, borates, and halogenated compounds and ammonia have destroyed our steel components every 30 months. Our projected savings and downtime and replacement costs are really beyond our expectations!"

James Bulmer

HY-LINE CRUISES

"We have a fleet of ferry boats and other commercial applications on and around the waterfront. We have been using your product for 4 years now and have found it to be superior to any other coating. MCU has stood up to high traffic in adverse weather and environments. Additionally, the instructions provided with your products are clear, easy to understand, and thorough in content."

Robert Lauzon


Note about estimation of product for use: One quart covers 100 square feet approx in one coat; two coats of this product are required for use. If you are unsure of how much you'll need for your project, you may email us at contact@mastercoatusa.com and we will give you an estimation to the best of our abilities. All estimates are approximate and not guaranteed.

Disclaimer: We use more than one raw material supplier for our products depending on availability. Colors and textures of products may vary slightly from batch to batch. All of our products undergo strenuous testing to ensure they perform as expected and produce long lasting results.

IMPORTANT WARNINGS:

DO NOT LET THIS PRODUCT DRY IN YOUR PAINT GUN. DO NOT PUT THESE PAINTS ON A SHAKER TO MIX. Always clean immediately with urethane reducer (MCT101) or lacquer thinner. (DO NOT use lacquer thinner as a reducer for any of our products). 

Suitable for marine use, but not suitable for areas that are continuously submerged in water. Not suitable for contact with food or potable water.

SHELF LIFE: ONE YEAR UNOPENED. SHELF LIFE IS NOT GUARANTEED ONCE CONTAINER HAS BEEN OPENED. Avoid opening and closing container repeatedly.Transfer to clean, empty pint sized cans when opening the container for the first time if not using the entire contents at once.  

DO NOT RECOAT RUST SEALER OR TOPCOAT WHEN PREVIOUS COAT OF RUST SEALER IS STILL TACKY. PREVIOUS COAT MUST BE DRY TO THE TOUCH BEFORE RECOATING OR APPLYING TOPCOAT. APPLYING WHILE TACKY MAY RESULT IN BLISTERING, PEELING, OR CRACKING. IN THIS CASE YOU WILL HAVE TO SANDBLAST AND START OVER!!!

FOR PROFESSIONAL USE ONLY.