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POR-15 Stop Rust Kit, Non-Porous Coating Seals and Protects Metal from Rust and Corrosion, Gloss Black

4.6 4.6 out of 5 stars 2,642 ratings

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Stop Rust Kit
  • ✅ WHY CHOOSE POR-15 STOP RUST KIT – our 3-Step System stops rust permanently by creating a hammer- tough, non-porous surface that seals and protects metal from water, chemicals, salt, and other corrosive contaminants. Tested to 450°F and exceeded a 2,000-hour salt spray test. Also, resistant to acid and alkalis, & will repel fuels and oils.
  • ✅ CLEANS, PREPS, & COATS METAL – At a cost-effective price for three premium POR-15 products, our stop rust kit has everything you need for amazing and permanent results. The POR-15 stop rust kit includes CLEANER DEGREASER to remove contaminants; METAL PREP to neutralize rust, etch metal & coat with a zinc phosphate surface; & RUST PREVENTIVE COATING for a permanent hammer-tough finish.
  • ✅ APPLICATION – Clean the surface using POR-15 Cleaner Degreaser before applying POR-15 metal prep to the bare or rusted metal surface. Prepping the metal will provide the best surface profile and improve paint adhesion to any metal surface. Lastly, Apply the first coat to the properly prepared substrate with the supplied brush. Apply the second coat when the first coat is almost dry, slightly tacky to the touch. Contains a 4 oz can that will cover six sq ft with two coats.
  • ✅ WHEN DO I NEED THIS? Restore small parts & projects such as small subframes, axle replacements, control arms, brake shields, and more. Preventing the spread of rust is essential if you wish to preserve the good looks of your vehicle, and to prevent further damage caused by corrosion.
  • ✅ OUR SATISFACTION COMMITMENT – At POR-15 we strive to bring the ultimate in rust prevention. Known for the unbeatable 3-step stop rust system, POR-15 is trusted by DIY & Professionals. We are committed to innovation, quality control, and excellent customer service.
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Important information

Safety Information

DANGER! VAPOR AND SPRAY MIST HARMFUL. OVEREXPOSURE MAY CAUSE LUNG DAMAGE. MAY CAUSE ALLERGIC SKIN AND RESPIRATORY REACTION, EFFECTS MAY BE PERMANENT. MAY AFFECT THE BRAIN OR NERVOUS SYSTEM CAUSING DIZZINESS, HEADACHE OR NAUSEA. CAUSES EYE, SKIN, NOSE AND THROAT IRRITATION. COMBUSTIBLE LIQUID AND VAPOR.


From the brand


From the manufacturer

POR-15 Rust Preventive Sizes

POR-15 Rust Preventive Coating

POR-15 3-Step Stop Rust Preventive System
Use as part of the POR-15 3-Step System for Permanent results

The ultimate rust preventive system for permanent corrosion protection. Shields metal in just 3 easy steps, clean it, prep it, and coat it.

  • Step 1: POR-15 Cleaner Degreaser removes grease, oil, dirt & grime in one application without leaving residues, or flammable solvents.
  • Step 2: POR-15 Metal Prep provides the best adhesion for POR-15 Rust Preventive Coating on any metal surface.
  • Step 3: POR-15 Rust Preventive Coating is a high performance coating designed for application directly on stable rust or seasoned metal surfaces.

POR-15 Rust Preventive Coating

Stop Rust and Corrosion Permanently

POR-15 Rust Preventive Coating REALLY Stops Rust Permanently! POR-15 Rust Preventive Coating is designed for application directly on prepped rusted, sandblasted, and seasoned metal surfaces. It dries to a rock-hard, non-porous finish that won’t chip, crack, or peel, and it prevents rust from recurring by protecting metal from further exposure to moisture.

Provides rust protection with a hammer-tough finish.

  • Seals rust permanently
  • No need to remove rust before applying
  • Lead-Free
  • For metal substrates
  • * Exceeds 2000 hour salt spray test
  • * Tested over 450°F / 232°C
  • Repels fuels and oils
  • * Resistant to most acids and alkalis

Proper application of POR-15 Rust Preventive Coating using the 3-Step System

POR-15 Cleaner Degreaser

POR-15 Metal Prep

POR-15 Rust Preventive Coating

POR-15 Top Coat

Step 1: Clean it!

Remove loose rust and degrease surface with water-based POR-15 Cleaner Degreaser

Step 2: Prep it!

Neutralize rust and etch it with POR-15 Metal Prep. Thoroughly wash with water and dry.

Step 3: Coat it!

When surface is dry, apply POR-15 Rust Preventive Coating right onto the rust with two or three thin coats!

For areas exposed to U.V. light - Topcoat it

Topcoat with POR-15 Top Coat, POR-15 2K Urethane, or other top coat of your choice. Top Coat the POR-15 Rust preventive while it is tacky for proper adhesion.

* LABORATORY TEST RESULTS

POR-15 Rust Preventive Coating was tested for 168 hours at 97°F in a condensing humidity salt spray (ASTM B117). At the end of the test period, coated steel was free of rust or pitting. Acid and alkali resistance tests performed found panels coated with POR-15 Rust Preventive Coating to be impervious to gasoline, oil, chromic acid, hydrochloric acid, phosphoric acid, sodium hydroxide, caustic soda, 50% sulfuric acid, and 50% hydrofluoric acid. POR-15 Rust Preventive Coating was applied over a rusty substrate as a finish coat (approximately 23 mils dry film thickness). The coating showed essentially no undercutting at the scribed area after 2000 hours in a weatherometer*.

A 2 mil thickness of POR-15 Rust Preventive Coating was applied to lightly rusted steel and then exposed for 1000 hours to a salt spray. At the end of the test period, no undercutting was observed at the scribed area. Recoatability is excellent. Laboratory tests have shown very good adhesion when applied up to 14 days after application of the first coat. In an actual Field test, a topcoat was applied 6 weeks after the first coat had been applied, and the intercoat adhesion was excellent as determined by a crosshatch tape test. A metal box used as a filter for raw sewage was coated with POR-15 Rust Preventive Coating and placed in service within a few hours after the interior and exterior were coated. No visible rusting occurred at the welded areas after a six month exposure.

A POR-15 Rust Preventive Coating coating was subjected to 450°F for 10 hours; it remained hard and showed no apparent loss of adhesion. A panel subjected to elongation was pulled beyond the yield point of the base metal without affecting the POR-15 Rust Preventive Coating coating.

* For more detailed lab test results contact P.O.R. Products

Product Description

The Por-15 3-Step Stop Rust System Is Designed To Stop Rust On Metal Surfaces And Ensures The Best Results When Applying Por-15 Rust Preventive Coating. The Clear-Cut Process Allows For The Proper Cleaning, Prepping, And Coating Of Metal To Create A Non-Porous Surface That Seals And Protects Metal From Water, Chemicals, And Salt, And Other Corrosive Contaminants. The Por-15 Stop Rust Kit Covers A 6 Square Foot Area With Two Coats Making It Ideal For Small Projects Like Sub Frames, Axle Replacements, Control Arms, Brake Shields, Etc. This Kit Contains Por-15 Cleaner Degreaser, Por-15 Metal Prep, Por-15 Rust Preventive Coating, Paint Brushes, Latex Gloves, And Detailed Instructions. Basic Directions: Gloves, Eye Protection, And A Properly Fitted Respirator Should Be Worn Whenever Handling These Products. Step 1. Remove Loose Rust With A Wire Brush. Apply Por-15 Cleaner Degreaser To The Surface, Keep Wet 10-15 Minutes Then Rinse Thoroughly With Water And Allow The Surface To Dry. For Areas With Noticeable Build Up Use A Stiff Brush To Break Up Material And Continue To Keep Wet With Por-15 Cleaner Degreaser. It Is Important Not To Allow The Product To Dry On The Surface Prior To Rinsing With Water. Por-15 Cleaner Degreaser Is A Heavy Duty Water Soluble Cleaner That May Be Used Over Metal, Wood, Fiberglass, Vinyl And Concrete. Step 2. Apply Por-15 Metal Prep To The Bare Metal Surface, Keep Wet 10-15 Minutes Then Rinse Thoroughly With Water And Allow The Surface To Dry. It Is Important Not To Allow Por-15 Metal Prep To Dry On The Surface Prior To Rinsing With Water. Once Dry The Surface May Show A Flash Rust Or White Powdery Residue This Is Perfectly Normal. Por-15 Metal Prep Provides The Best Surface Profile And Greatly Improves Paint Adhesion To Any Type Of Metal Surface. Step 3. Apply Two Thin Covering Coats Of Por-15 Rust Preventive Coating. Apply The First Coat To The Properly Prepared Substrate With The Supplied Brush. Apply The Second Coat When The First Coat Is Almost Dry, Slightly Tacky To The Touch. If Por-15 Rust Preventive Coating Is Applied Too Heavy, Brush Marks May Result In The Finish. Do Not Apply This Product If The Humidity Is Above 70%. If The Humidity Is Too High Por-15 Rust Preventive Coating Will Surface Dry Too Quickly Which May Result In Small Bubbles In The Finish. Por-15 Rust Preventive Coating Requires A Top Coat Only If Exposed To Direct Sunlight. For Top Coating Use Por-15 Top Coat Or Our Two Part Topcoat Por-15 2K Urethane.

Product information

Technical Details

Additional Information

Warranty & Support

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POR-15

POR-15 Stop Rust Kit, Non-Porous Coating Seals and Protects Metal from Rust and Corrosion, Gloss Black


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What's in the box

  • 8oz POR-15 Cleaner Degreaser
  • 8oz POR-15 Metal Prep
  • 4oz POR-15 Rust Preventive Coating
  • Paint Brush
  • Foam Applicator
  • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    2,642 global ratings

    Customers say

    Customers like the quality, ease of use, and durability of the auto accessory. For example, they mention it works well, the instructions are clear, and it's easy to apply fairly evenly. Some appreciate the appearance. That said, opinions are mixed on rust, value, and ease of cleaning.

    AI-generated from the text of customer reviews

    110 customers mention100 positive10 negative

    Customers are satisfied with the quality of the auto accessory. They say it works well, has easy steps to follow along, and is worth the effort. Some customers also mention that it works great for reducing clogging of wet grass.

    "...Worked very well easy steps to follow along and plenty videos on youtube of people using product." Read more

    "Great product .it is uv sensitive" Read more

    "...All in all.. very satisfied. Quality product...." Read more

    "This works very well! I want to address the common issue regarding the can and the lid being hard to open...." Read more

    48 customers mention36 positive12 negative

    Customers find the auto accessory easy to use. They say the instructions are clear and easy to follow. They also say the product is easy to apply fairly evenly with the sponge brush applicator. Customers say the kit makes rust repair super easy.

    "...Easy to use and seems like it will slow down the rust." Read more

    "...It was quick and easy and inexpensive to make my hood look like new! I highly recommend it!" Read more

    "...This solved it completely. It’s a little difficult to apply. I used a plastic cup and it ate through the bottom and leaked all over the place...." Read more

    "Pros: easy to apply fairly evenly with sponge brush applicator...." Read more

    35 customers mention25 positive10 negative

    Customers like the durability of the auto accessory. They mention that it has a very tough coating, it holds up great in Maine, and it has rock hard finish. It hardens very well after setting up, and is scratch resistant. It's easy to apply and lasts a long time.

    "...once cured, this product lives up to it's claims in that it resists abrasion by grinder or sander unless the metal underneath was not cleaned and..." Read more

    "One of the best things about POR 15 is its durability. The coating is incredibly strong and creates a bond that's resistant to chipping, cracking,..." Read more

    "...Everything included- Great coverage- Looks great- Durable.- Fast DryingCons- Toxic chemicals-..." Read more

    "...brushes for the final painting of the black POR as the sponge brush included will break down." Read more

    13 customers mention13 positive0 negative

    Customers are satisfied with the appearance of the auto accessory. They mention that it looks great, has a beautiful gloss black finish, and leaves behind a shine. Some say that it's easy and inexpensive to make their hood look like new.

    "...It was quick and easy and inexpensive to make my hood look like new! I highly recommend it!" Read more

    "...I wiped the can and lid as clean as I could see. It looked clean and clear but there must have been something I missed because when I wanted to..." Read more

    "Great I love the shine that leaves behind I used it on my classic car that i been working on for 6 years love the way it looks for a small can kind..." Read more

    "...Pros- Everything included- Great coverage- Looks great- Durable.- Fast DryingCons-..." Read more

    34 customers mention22 positive12 negative

    Customers are mixed about the rust. Some mention it stops rust, works great for rust repair, and is great on auto rust; while others say that it causes itching and complete discoloration of their skin.

    "...Easy to use and seems like it will slow down the rust." Read more

    "...Sure enough...two years after fixing it, rust started creeping back in (we live in a snowy, salt-on-the-road state)...." Read more

    "...but this took a 80 year old piece of cast iron and stopped the rust from advancing further." Read more

    "...This stuff is truly amazing in its ability to neutralize rust and bond to the surface without a tremendous of amount of tedious surface prep...." Read more

    24 customers mention11 positive13 negative

    Customers are mixed about the value of the auto accessory. Some mention that it's a well-priced way to try POR 15 out, while others say that it is very poor value for the money, the price is high, and a waste of money. They also complain that there is not much of the actual POR-15 product, the supplied parts seem cheap, and the product is unusable.

    "...It's a bit pricey for a small can but works well." Read more

    "...It was quick and easy and inexpensive to make my hood look like new! I highly recommend it!" Read more

    "...been working on for 6 years love the way it looks for a small can kind of pricey...." Read more

    "...has enough product to do a few small jobs, shipping and price of the kit is pretty good...." Read more

    14 customers mention5 positive9 negative

    Customers are mixed about the ease of cleaning. Some mention that cleaning and prepping are super important, and the product goes a long way. However, others say that dryingCons are toxic chemicals, hard clean up, time consuming to prep, and messy to use.

    "...You MUST use strong latex gloves. This stuff does not wash off. Also, do not get product on the lid area or you will never reopen the can...." Read more

    "Came with prep cleaner,rust treatment the rust treatment went on without a hitch" Read more

    "...This WILL STAIN your hands. Use the gloves.Don’t think you can use it and reseal to use again...." Read more

    "...Once exposed to air it is very difficult to reseal the can. Generally it will have a short shelf life once opened...." Read more

    20 customers mention0 positive20 negative

    Customers find the auto accessory difficult to open. They mention that the cleaner degreaser container doesn't open according to the instructions on the cap. They also say that the paint can was extremely difficult to remove with a pry tool. Customers also say the container once opened is useless.

    "...One other thing I will add...the little can of POR was almost impossible to get open. The lid actually inverted before I got it removed...." Read more

    "...Regarding the cleaner degreaser container: it doesn't open according to the instructions on the cap which say "press down and turn" I automatically..." Read more

    "...It was very difficult to open and the can was no good after...." Read more

    "...which Amazon was helpful to do for me but it also had difficulty getting open. You don't want to spill this stuff or get on you...." Read more

    WEAR OLD CLOTHES BEFORE STARTING!
    5 Stars
    WEAR OLD CLOTHES BEFORE STARTING!
    I have a 2014 Ford Escape that had a factory paint defect at bottom of driver side back door. Ford refused to acknowledge the defect, and I had the area repaired by a body shop but they said that it still could rust inside the door. They suggested POR-15 could be a solution to keep further damage minimized. Sure enough...two years after fixing it, rust started creeping back in (we live in a snowy, salt-on-the-road state). I bought the kit (which is a bummer because it only comes in black and I don't need a giant can of gray POR), followed the instructions to a T, and touched up the inside of the door. I really don't care that it's black instead of gray since it's hidden most of the time. The time it took was about six hours, with dry time included. Do NOT wear good clothes to work with this stuff and be sure to wear a mask because the fumes are pretty smelly. Take your time because if you get this stuff where you don't want it, you will NEVER get it off. The kit came with everything, including gloves (no mask), but I doubt the brush will be reusable in the future. I could not find in the instructions what type of solvent to clean up with. Mineral spirits? Whatever. The brush was cheap and honestly, for a small job you could use a Q-Tip. Be sure to prep and clean the area according to the instructions. I masked out the bottom area with duct tape. I probably could have done that with the whole area, but I didn't think it was necessary. I also used a bit of POR on our metal trailer tire covers, which are black. Now the wait begins...hopefully we can keep our car looking decent for a few more years. One other thing I will add...the little can of POR was almost impossible to get open. The lid actually inverted before I got it removed. The POR was not dried out or leaking. Surely there must be a better way to package this stuff? I use a rubber mallet to pound the lid back onto the can so as to avoid damaging it further.
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    Top reviews from the United States

    Reviewed in the United States on February 29, 2024
    Style: Stop Rust KitVerified Purchase
    Reviewed in the United States on October 18, 2023
    Style: Stop Rust KitVerified Purchase
    Reviewed in the United States on October 15, 2023
    Style: Stop Rust KitVerified Purchase
    Reviewed in the United States on February 13, 2024
    Style: Stop Rust KitVerified Purchase
    Reviewed in the United States on August 14, 2020
    Style: Stop Rust KitVerified Purchase
    Customer image
    5.0 out of 5 stars WEAR OLD CLOTHES BEFORE STARTING!
    Reviewed in the United States on August 14, 2020
    I have a 2014 Ford Escape that had a factory paint defect at bottom of driver side back door. Ford refused to acknowledge the defect, and I had the area repaired by a body shop but they said that it still could rust inside the door. They suggested POR-15 could be a solution to keep further damage minimized. Sure enough...two years after fixing it, rust started creeping back in (we live in a snowy, salt-on-the-road state). I bought the kit (which is a bummer because it only comes in black and I don't need a giant can of gray POR), followed the instructions to a T, and touched up the inside of the door. I really don't care that it's black instead of gray since it's hidden most of the time. The time it took was about six hours, with dry time included. Do NOT wear good clothes to work with this stuff and be sure to wear a mask because the fumes are pretty smelly. Take your time because if you get this stuff where you don't want it, you will NEVER get it off. The kit came with everything, including gloves (no mask), but I doubt the brush will be reusable in the future. I could not find in the instructions what type of solvent to clean up with. Mineral spirits? Whatever. The brush was cheap and honestly, for a small job you could use a Q-Tip. Be sure to prep and clean the area according to the instructions. I masked out the bottom area with duct tape. I probably could have done that with the whole area, but I didn't think it was necessary. I also used a bit of POR on our metal trailer tire covers, which are black. Now the wait begins...hopefully we can keep our car looking decent for a few more years. One other thing I will add...the little can of POR was almost impossible to get open. The lid actually inverted before I got it removed. The POR was not dried out or leaking. Surely there must be a better way to package this stuff? I use a rubber mallet to pound the lid back onto the can so as to avoid damaging it further.
    Images in this review
    Customer image
    Customer image
    9 people found this helpful
    Report
    Reviewed in the United States on November 20, 2019
    Style: Stop Rust KitVerified Purchase
    6 people found this helpful
    Report
    Reviewed in the United States on August 31, 2023
    Style: Stop Rust KitVerified Purchase
    Reviewed in the United States on October 1, 2019
    Style: Stop Rust KitVerified Purchase
    Customer image
    5.0 out of 5 stars Body rust DIY project.
    Reviewed in the United States on October 1, 2019
    NOTE: Small bubbles and white haze NOT a result of POR-15 - I'll explain below.

    Story: I live in Michigan, and body rust is common. I wanted to seal up some areas around the wheel fenders and near my door handle (cheaply and quickly. It's a truck.. doesn't have to be pretty). I saw great reviews for this product so decided to give it a go.

    The photos show before and after. However I should give some context here. I first hit the rust spots with an angle grinder, and got most off. I used the degreaser and metal prep as directed. I had big holes in a few spots that we're completely corroded that I filled with JB Weld steel putty, buffed down after curing with the grinder. Rinsed, dried, and applied POR-15 as directed.

    This stuff seals great. It dries fast and evenly. I left it overnight. Since I used on areas that will be exposed to direct sunlight, it is recommended to use a top coat. However, the reviews for this brand's top coat were not very good. I used clear Rustoleom (protects from UV) to coat the surface.

    It looked great before applying the top coat. I wish I would have got pictures of it beforehand. But the spray I used left a hazy residue and small bubbles on the POR-15 areas. Not a deal breaker or anything. I just want it to work. But if I had to do it again, I would use a different product to top coat.

    All in all.. very satisfied. Quality product.
    One last thing - this is potent stuff. If you have gloves, use them. If you have a respirator, use it.
    Images in this review
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    44 people found this helpful
    Report

    Top reviews from other countries

    Minimal Al
    5.0 out of 5 stars Excellent product - plenty of coating for small projects
    Reviewed in Canada on December 1, 2020
    Style: Stop Rust KitVerified Purchase
    One person found this helpful
    Report
    Nicolas
    5.0 out of 5 stars Great rust paint.
    Reviewed in Canada on December 3, 2023
    Style: Stop Rust KitVerified Purchase
    vik
    4.0 out of 5 stars Looks good
    Reviewed in Canada on February 14, 2024
    Style: Stop Rust KitVerified Purchase
    Customer image
    vik
    4.0 out of 5 stars Looks good
    Reviewed in Canada on February 14, 2024
    The container sizes are much smaller than you would expect, see the picture in comparison to a paint can.
    The coating looks gloss, it's easy to work with it.

    I've prepped the piece of car frame very well, cleaned all the rust, and followed all POR-15 instructions.
    I will update this review in 6-12 months to show if the frame started to rust again.
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    One person found this helpful
    Report
    Restless_queen
    5.0 out of 5 stars This stuff works awesome,
    Reviewed in Canada on October 3, 2022
    Style: Stop Rust KitVerified Purchase
    13 people found this helpful
    Report
    CarG
    5.0 out of 5 stars Used this for oil pan
    Reviewed in Canada on December 26, 2023
    Style: Stop Rust KitVerified Purchase