
POR-15 Rust Preventive Coating is a high-performance coating designed to be applied directly to rusted, seasoned, or abrasive-blasted metal surfaces. Unlike ordinary paints, POR-15 is a rust-preventive coating that cures by drawing moisture from the atmosphere, resulting in a rock-hard, non-porous, and flexible finish that is practically indestructible. The product is available in various colours, including gloss silver, and can be purchased in quart or 4oz sizes.
| Characteristics | Values |
|---|---|
| Coating | Non-porous, hard, tough, flexible, rock-hard, abrasion chemical, stain and impact resistant |
| Application | Directly on prepped, rusted, seasoned, abrasive-blasted, or bare metal surfaces |
| Protection | Seals and protects from water, chemicals, fertilizer, salt, UV light, corrosion, and other corrosive contaminants |
| Performance | Superior chemical resistance, dense, cross-linked molecular composition, non-conductive, permanent rust repair |
| Curing Process | Dries faster when moisture is present |
| Topcoat | Required for prolonged exposure to sunlight or UV light |
| Colour | Gloss black, semi-gloss black, silver, gray, and clear |
| Price | Starting at $63.89 |
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What You'll Learn

Application and use
POR-15 Rust Preventive Coating is a high-performance coating designed to be applied directly to rusted or seasoned metal surfaces to stop rust permanently. It is non-porous and seals and protects surfaces from water, chemicals, fertilizer, salt, and other corrosive contaminants. The product is incredibly hard, tough, and flexible, making it practically indestructible. It is also hammer-tough and won't crack, chip, or peel.
Before applying POR-15 Rust Preventive Coating, it is important to properly prepare the surface. For best results, clean and prep the metal before using the coating. This can be done using the POR-15 3-Step Stop Rust System, which includes the following steps:
Step 1: Clean
Remove loose rust and degrease the surface with a water-based cleaner degreaser such as POR-15 Cleaner Degreaser. This will remove grease, oil, dirt, and grime in one application without leaving any residues, noxious fumes, or flammable solvents. Apply the cleaner to the surface, keep it wet for 10-15 minutes, and then agitate the surface with a scuff pad or stiff brush to break up any remaining contaminants.
Step 2: Prep
Neutralize rust and etch the surface with a metal prep product such as POR-15 Metal Prep. This will provide the best adhesion for the coating on any metal surface, including shiny polished metal surfaces. Metal that is media blasted provides the best surface for coatings. If this is not possible, remove all built-up dirt, loose rust, and paint. Note that if you leave old paint behind, the rust preventive coating may not adhere as strongly.
Step 3: Coat
After thorough washing and drying, apply the POR-15 Rust Preventive Coating directly to the prepared surface. For areas that will be exposed to UV light, it is recommended to use a topcoat such as POR-15 DTM Top Coat, 2K Urethane, or another paint of your choice. A topcoat is required if the coated surface will be exposed to sunlight for prolonged periods. The coating should be applied in thin coats, with a minimum of two coats. If necessary, thin the coating with POR-15 Solvent, up to 5%.
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Features and benefits
POR-15 Silver Rust Preventive Paint Quart is a high-performance coating designed to permanently stop rust. Unlike ordinary paints, POR-15 is a rust-preventive coating that can be applied directly to rusted, seasoned, or abrasive-blasted metal surfaces. The product seals and protects surfaces from water, chemicals, salt, and other corrosive contaminants.
The paint dries to a rock-hard, non-porous, flexible finish that won't chip, crack, or peel. The secret to its effectiveness lies in its curing process: POR-15 cures faster when moisture is present, and unlike ordinary paints, it dries without pores, preventing rust from recurring by isolating the metal from further exposure to moisture.
The application process is straightforward. First, clean and prep the metal surface, removing any built-up dirt, loose rust, and paint. Then, apply the POR-15 Cleaner Degreaser, keeping it wet for 10-15 minutes before agitating the surface with a scuff pad or stiff brush to break up any remaining residue. Next, use the POR-15 Metal Prep to neutralize rust and etch the surface. Finally, coat the surface with POR-15 Rust Preventive Coating.
For areas exposed to UV light, it is recommended to use a topcoat such as the POR-15 DTM Top Coat to ensure long-lasting protection. This product is ideal for anyone looking to protect their metal surfaces from rust and corrosion, especially those in environments prone to moisture and corrosive contaminants.
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Advantages over ordinary paint
POR-15 Silver Rust Preventive Paint offers several advantages over ordinary paint. Firstly, it is designed to be applied directly to prepped, rusted, or seasoned metal surfaces, unlike ordinary paint which often requires a primer or a smooth surface. This makes it ideal for restoration projects where rust is already present. The paint chemically bonds with the rusted metal, forming a rock-hard, non-porous coating that seals and protects the surface from water, chemicals, salt, and other corrosive contaminants.
Another advantage of POR-15 is its unique curing process. Unlike ordinary paints that dry through evaporation and are weakened by moisture exposure, POR-15 dries faster when moisture is present, resulting in a stronger coating. This curing process also contributes to the paint's incredible hardness, toughness, and flexibility, making it practically indestructible and resistant to everyday wear and tear.
The paint's toughness is further demonstrated in its ability to withstand extreme temperatures and physical stress without cracking, chipping, or peeling. This feature is especially beneficial for automotive applications, where metal surfaces are subjected to constant vibration and impact. The flexibility of the coating also allows it to be used on a variety of surfaces, including wood, fiberglass, concrete, and bricks, making it suitable for a wide range of projects.
Additionally, POR-15 Rust Preventive Paint provides superior chemical resistance due to its dense, cross-linked molecular composition. This composition creates a barrier that prevents corrosive substances from reaching the metal surface, ensuring long-lasting protection. The paint's effectiveness is such that industries such as automotive, farm, industrial, commercial marine, and construction use it to protect valuable equipment from rust, abrasion, and even graffiti.
Lastly, POR-15 Rust Preventive Paint is easy to apply and can be brushed or sprayed onto surfaces. While it is recommended to use their Cleaner Degreaser and Metal Prep products for surface preparation, the paint itself goes on smoothly and levels off beautifully, according to customer reviews.
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Preparation and application process
The preparation and application process for POR-15 Silver Rust Preventive Paint involves several steps to ensure effective rust prevention and protection for metal surfaces. Here is a detailed guide on the process:
Preparation:
Before starting the application, it is crucial to prepare the metal surface properly. This involves cleaning and degreasing the surface to remove any contaminants that might interfere with the adhesion of the paint. Use POR-15 Cleaner Degreaser (formerly known as Marine Clean) to effectively remove grease, oil, dirt, grime, and any other foreign substances. This step ensures that the surface is thoroughly cleaned without leaving any residues or producing noxious fumes.
Surface Preparation:
After cleaning, the next step is to prepare the surface for the application of POR-15 Rust Preventive Coating. Use POR-15 Metal Prep (formerly Prep & Ready) on the surface to neutralize rust and improve adhesion. This step is essential, especially if you are dealing with a rusty surface. Metal Prep will also etch the metal and coat it with zinc phosphate, creating an optimal surface profile for paint adhesion. Make sure not to let the Metal Prep dry on the surface before rinsing it with water.
Mixing the Coating:
Before applying the POR-15 Rust Preventive Coating, you need to mix the contents of the can thoroughly. Do not shake the can. Instead, stir the coating gently until all the solids at the bottom of the can are dissolved. You can use a drill mixer on a slow setting or mix by hand.
Application Process:
Now you are ready to apply the POR-15 Rust Preventive Coating. It is recommended to apply two thin coats of the coating for optimal results. Use a brush, roller, or HVLP application method, ensuring proper ventilation and personal protective equipment (PPE). Apply the first coat to the properly prepared surface, and then apply the second coat when the first coat is dry but still slightly tacky to the touch. Avoid applying the coating if the humidity is above 70% to prevent surface drying too quickly, which can cause small bubbles in the finish.
Drying and Recoating:
Allow the coating to dry completely between coats. POR-15 Rust Preventive Coating dries faster in the presence of moisture. You can recoating or topcoating when the coating is dry to the touch, typically after 2 to 6 hours.
By following these detailed steps for preparation and application, you can effectively use POR-15 Silver Rust Preventive Paint to protect your metal surfaces from rust and corrosion.
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Safety precautions
POR-15 Silver Rust Preventive Paint Quart is a high-performance coating designed to be applied directly to rusted or seasoned metal surfaces. It is a non-porous coating that seals and protects surfaces from water, chemicals, salt, and other corrosive contaminants. It is important to follow safety precautions when using this product. Here are some detailed safety instructions:
- Wear Protective Gear: When handling POR-15 Silver Rust Preventive Paint, always wear latex gloves, eye protection, and a NOSHA-approved respirator. These precautions are important to avoid any direct contact with the product and to prevent the inhalation of paint fumes.
- Ventilation: Ensure that you are working in a well-ventilated area. When spraying the paint in an enclosed space, it is mandatory to use an outside air source system to maintain adequate ventilation and minimise the risk of inhaling fumes.
- Surface Preparation: Properly prepare the surface before applying the paint. Remove any built-up dirt, loose rust, and old paint. The best surface for coatings is media-blasted metal. If media blasting is not possible, use a grit pad/paper to roughen new or smooth metal surfaces.
- Cleaner Degreaser: Use the POR-15 Cleaner Degreaser to ensure the surface is free of grease, oil, and grime. Apply it to the surface, keep it wet for 10-15 minutes, and then agitate with a scuff pad or stiff brush. Rinse thoroughly with water and allow the surface to dry before proceeding.
- Topcoat for UV Exposure: POR-15 Silver Rust Preventive Paint is sensitive to UV light. If the painted surface will be exposed to sunlight or UV light, a topcoat is required to protect the finish. Choose a UV-safe paint such as the POR-15 DTM Top Coat or another opaque paint.
- Keep Out of Reach: Store the product in a secure location, out of the reach of children and pets.
- Health Hazards: POR-15 Silver Rust Preventive Paint contains chemicals that can be hazardous to your health. The product contains isocyanates, and exposure to certain chemicals, including Cumene, Titanium Dioxide, Carbon Black, and Ethyl Benzene, may increase the risk of cancer, as identified by the State of California. Always refer to the safety data provided by the manufacturer and take the necessary precautions to protect your health.
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Frequently asked questions
POR-15 Silver Rust Preventive Paint Quart is a high-performance coating designed to stop rust permanently. It can be applied directly to rusted, seasoned, or abrasive-blasted metal surfaces.
Unlike ordinary paints, POR-15 Silver Rust Preventive Paint Quart is a non-porous coating that seals and protects surfaces from water, chemicals, salt, and other corrosive contaminants. It dries to a rock-hard, flexible finish that won't chip, crack, or peel.
First, clean and prep the metal surface. Remove any loose rust, grease, oil, dirt, or grime. Then, apply the POR-15 Rust Preventive Coating directly to the surface. For best results, use a brush and always wear protective gear when handling the product.
The POR-15 Silver Rust Preventive Paint Quart starts at $63.89.
POR-15 Rust Preventive Coating is available in gloss black, semi-gloss black, silver, gray, and clear.











































