Will Elastomeric Paint Stick to Metal? Explained and Tested

Do you ever find yourself browsing the aisles of a home improvement store, wondering which paint to buy for your metal surfaces? Look no further than elastomeric paint, a type of paint specifically designed to adhere to metal. You might be asking yourself, “what is elastomeric paint?” Well, it’s a synthetic rubber-based paint that can expand and contract with the surface it’s applied to, making it perfect for metal, which can move in response to changes in temperature.

But does it actually work? That’s the question on many homeowners’ minds. The answer is a resounding “yes.” Elastomeric paint is designed for use on porous surfaces, such as stucco or concrete, but it’s an excellent choice for metal as well. The paint’s elasticity allows it to expand and contract with the metal, which can help prevent cracking and peeling. Plus, it’s a waterproof paint, perfect for protecting metal surfaces from rain and snow. With the combination of durability and flexibility, elastomeric paint is an excellent choice for maintaining the look and strength of your metal surfaces.

What is Elastomeric Paint?

Elastomeric paint is a type of exterior paint that is designed to expand and contract with the surfaces it is applied to. This type of paint is often used on surfaces that are subject to a lot of movement, such as masonry, stucco, and wood. Elastomeric paint is known for its durability, flexibility, and moisture resistance, making it a popular choice for high-performance coatings.

Unlike traditional paints, which can crack and peel when exposed to fluctuations in temperature and moisture, elastomeric paint can stretch up to 600% without cracking or peeling. This makes it an ideal choice for surfaces that are exposed to extreme temperatures or frequent changes in weather. In addition to its flexibility, elastomeric paint is also highly breathable, which means that it allows moisture to escape from the surface it is applied to, reducing the risk of mold and mildew growth.

Benefits of Using Elastomeric Paint on Metal

If you’re looking for a high-performance paint for your metal surfaces, elastomeric paint is your go-to solution. This type of coating is widely known for its ability to provide long-lasting protection, flexibility, and a smooth finish for a wide range of metal surfaces.

Advantages of Elastomeric Paint on Metal

  • Waterproofing: Elastomeric paint is durable and waterproof, making it an excellent choice for exterior metal surfaces such as roofs, gutters, and downspouts. This type of coating can withstand harsh weather conditions, resisting water penetration and the damage it can cause.
  • Flexibility: Metal surfaces can expand and contract with temperature changes, leading to cracks and peeling of the paint. Elastomeric paint is designed to be stretchy and flexible, allowing it to bend and flex effortlessly without cracking or peeling, even in extreme temperatures.
  • Longevity: Elastomeric paint can last up to ten years or longer without needing a refresh. With proper application and maintenance, this type of coating can extend the lifespan of the metal surface it’s protecting, saving you time and money in the long run.

Excellent Adhesion on Metal Surfaces

Elastomeric paint creates a strong bond with metal surfaces, ensuring a long-lasting result. The unique properties of this coating allow it to adhere well to different types of metal surfaces, including aluminum, steel, and galvanized metal.

Elastomeric Paint BenefitsExamples
WaterproofingRoofs, gutters, downspouts
FlexibilityBuildings, bridges, pipelines
LongevityIndustrial equipment, metal fences, tanks
AdhesionAluminum, steel, galvanized metal

If you’re planning to paint over your metal surfaces, elastomeric paint is a smart investment. The benefits of this type of coating are hard to beat, ensuring that your metal surfaces are well-protected with a long-lasting, flexible, and highly waterproof finish.

Steps to Prepare Metal Surface for Elastomeric Paint Application

Applying elastomeric paint on a metal surface requires preparation to ensure that the paint adheres and performs as intended. Follow these steps to prepare a metal surface for the application of elastomeric paint:

  • Clean the Surface: The metal surface must be free of dirt, dust, grime, oil, and any other contaminants. Use a pressure washer or high-pressure water jet to get rid of loose paint chips, flaky rust or other debris. For difficult-to-remove debris, use a scraping tool or a wire brush. For grease or oil, use TSP solution to clean, scrub, and rinse the surface, then allow it to dry completely.
  • Remove Rust: Rust left untreated will grow and cause the paint to peel. Determine the extent of rust damage and remove it by sandblasting or grinding the surface, then, treating the surface with a rust converter or primer to prevent future rust formation for years to come.
  • Smooth Rough Edges: Sand rough edges or use a rust converter to make them smoother. Inspect for damage caused by frost or hail and fix those areas with an appropriate sealant to prevent water penetration into the building.
  • Repair Dents and Cracks: Check for dents, cracks, or other signs of damage to the surface. Repairs to these imperfections should be made before coating with an elastomeric paint. Common solutions are filling with an epoxy or polyurethane filler, or using a two-part putty, finishing with a spot-primer and an adhesive primer in that order.
  • Apply Primers: An appropriate primer based on the metal type and the paint manufacturer’s recommendation for elastomeric coatings, also make sure the primer matches the intended lifespan of the final topcoat. Primers provide the required adhesion of the elastomeric coating to the metal surface, offer corrosion resistance, and improve paint durability and longevity.
  • Smooth and Seal: Use abrasive paper as needed to ensure a smooth surface for application. Make sure all screw holes, joints, and seams are filled, apply seam sealer to these areas and use surface-tolerant primers in slow drying rates if necessary. For maximum protection and surface use an appropriate sealant, elastomeric sealant is a recommended option.


Prepping a metal surface before applying elastomeric paint is essential. Surface preparation determines the longevity of the coating, a well-prepared surface sets the foundation for a superior final coat. A properly cleaned, rust-free, non-dented and primed surface will receive a superior elastomeric paint finish that will endure. Proper surface preparation is an investment in the future of your metal surface, and elastomeric coatings will repay that investment with long-lasting performance, lasting up from 10- 30 years.

Contact a paint professional with any questions regarding impainting or painting techniques.

Compatibility of Elastomeric Paint with Different Types of Metals

Elastomeric paint has gained popularity over the years due to its durability and ability to withstand harsh weather conditions. One of the common doubts that arise in the minds of homeowners and contractors while using elastomeric paint is whether it is compatible with different types of metals.

The answer is Yes! Elastomeric paint can be used with almost all types of metals. However, it is essential to bear in mind that some metals require specific primers before using the elastomeric paint.

Factors that Affect Elastomeric Paint Adhesion to Metals

  • Surface Preparation – Proper surface preparation is crucial for the adhesion of elastomeric paint to metal surfaces. Surface contamination, rust, grease, and other pollutants can negatively affect the paint’s adhesion to the metal surface.
  • Metal Type – While elastomeric paint can be applied to different types of metals, the metal type can affect the paint’s adhesion. Some metals, such as Aluminum, require etching primer before applying the elastomeric paint.
  • Humidity and Temperature – Humidity and temperature affect the paint’s drying rate and adhesion. Elastomeric paint should not be applied to metals in high humidity and low-temperature conditions.

Priming Different Metals Before Applying Elastomeric Paint

As mentioned earlier, some metals require primers before applying elastomeric paint. The table below outlines some common metals and the primer required for their optimal adhesion with elastomeric paint.

Metal TypePrimer Required
Galvanized MetalGalvanized metal etching primer
AluminumEtching primer followed by Epoxy primer
SteelEpoxy primer or rust inhibitor

Priming metals before applying elastomeric paint ensures better adhesion, durability, and longevity of the paint coating.

In conclusion, elastomeric paint can be used with almost all types of metals. A proper surface preparation and the use of specific primers for some metals are essential for optimal adhesion and durability of the paint coating.

Factors affecting the adhesion of elastomeric paint on metal surface

When it comes to painting metals, adhesion is always a crucial factor every homeowner needs to consider. Elastomeric paint is known to be one of the most durable and long-lasting paints that can be used for metal surfaces. However, several factors can affect its adhesion to the surface, which we will discuss in this article.

  • Surface preparation – The initial preparation of the surface before painting is crucial to the success of the coating. Any loose paint, rust, or corrosion on the surface will prevent the paint from adhering properly. Hence, the surface must be cleaned and polished before the paint application.
  • Humidity and temperature – The moisture and temperature in the air also affect the paint’s adhesion to the metal surface. If the humidity and temperature are too high, they can slow down the drying and curing process, leading to weaker adhesion of the paint.
  • Choice of primer – Primers are essential as they create a bonding surface between the metal and the elastomeric paint. If a poor quality primer is used, the paint may fail to adhere to the surface, leading to peeling or flaking.

One of the most significant factors affecting the adhesion of elastomeric paint on the metal surface is the presence of contaminants. The surface where the paint is being applied must be free from any form of contamination, including oil, grease, and dust. Contaminants not only affect adhesion but also lead to a reduced lifespan of the paint.

Contaminant typeEffect on paint adhesion
Oil and greasePrevents paint from bonding with the surface
Dust and dirtWeakens the bonding process, leading to peeling and detachment
Corrosion and rustInhibits adhesion and may lead to further surface damage

Painting metal surfaces with elastomeric paint requires careful attention to detail. Following the correct procedures for surface preparation, choosing the right primer, and avoiding contaminants can ensure a successful and long-lasting paint job. With proper application, elastomeric paint can provide protection against harsh weather conditions and prevent rust and corrosion, increasing the metal’s lifespan.

Tips for Applying Elastomeric Paint on Metal Surface

Elastomeric paint is a popular choice for painting metal surfaces in both residential and commercial settings. This type of paint is highly flexible and durable, offering excellent resistance to cracking, flaking, and peeling. However, applying elastomeric paint on metal surfaces requires careful preparation and application to ensure a long-lasting finish. Here are some useful tips to help you achieve excellent results when painting metal surfaces with elastomeric paint.


  • Clean the metal surface thoroughly using soap and water to remove any dirt, debris or loose paint.
  • If necessary, use a wire brush or sandpaper to remove any rust, corrosion, or stubborn debris from the metal surface.
  • Remove any loose or peeling paint by scraping, sanding or using a paint stripper.
  • Apply a primer to the metal surface to ensure better adhesion of the elastomeric paint.


Before applying the elastomeric paint, ensure that the surface is dry and free from any dust or debris. Use a quality brush or roller to apply the paint evenly on the metal surface in smooth, overlapping strokes. For best results, apply two coats of elastomeric paint, allowing sufficient drying time between coats.

Here are some additional tips for applying elastomeric paint on metal surfaces:

  • Avoid applying elastomeric paint in extreme temperatures or humid weather, as this can affect the paint’s adhesion and drying time.
  • Make sure to follow the manufacturer’s instructions when applying elastomeric paint to ensure that you achieve the desired results.
  • If necessary, apply a topcoat of paint to protect the elastomeric paint from UV damage and environmental factors.

Elastomeric Paints for Different Metal Surfaces

Not all elastomeric paints are created equal, and some may be better suited for certain metal surfaces than others. Here is a table that outlines some of the different types of elastomeric paints and the metal surfaces they are most suitable for:

Elastomeric Paint TypeSuitable Metal Surfaces
Acrylic Elastomeric PaintAluminum, Galvanized Steel, and Stainless Steel
Silicone Elastomeric PaintCopper, Lead, and Zinc
Butyl Elastomeric PaintSteel, Iron, and Concrete

Choosing the right elastomeric paint for your metal surface can make a significant difference in the durability and performance of the paint. Therefore, it’s essential to consult with a professional painter or the paint manufacturer to determine the best type of paint for your specific application.

Maintenance and care of elastomeric painted metal surfaces

As with any painted surface, maintaining and caring for elastomeric painted metal surfaces is crucial to ensure their longevity and durability. Here are some tips to keep your elastomeric painted metal surfaces looking great:

  • Regularly wash the surface with mild soap and water to remove dirt and debris that can accumulate over time.
  • Avoid using abrasive materials or harsh chemicals that can damage the paint or strip away the elastomeric properties.
  • Inspect the surface for any signs of cracking or peeling, which can indicate that the paint needs to be reapplied or the surface may need further preparation before painting.

Additionally, it’s important to properly prepare the surface before applying elastomeric paint to ensure it adheres properly. This can include cleaning the surface, removing any rust or corrosion, and applying a metal primer before the topcoat.

Here is a table outlining the recommended maintenance schedule for elastomeric painted metal surfaces:

Clean surfaceMonthly
Inspect for cracking/peelingQuarterly
Reapply paintEvery 5-10 years

Following these tips and adhering to the maintenance schedule can help extend the life of your elastomeric painted metal surfaces and keep them looking like new for years to come.

Will Elastomeric Paint Stick to Metal? FAQs

Q: Can I use elastomeric paint to paint my metal roof?
A: Yes, elastomeric paints are very effective on metal roofs as they provide a protective coating against harsh weather elements.

Q: How long will elastomeric paint stick to metal?
A: If applied correctly, elastomeric paint can last for up to 10 years without chipping or peeling from a metal surface.

Q: Do I need to prime my metal surface before using elastomeric paint?
A: Yes, it is advisable to prime your metal surface before applying the elastomeric paint. This will help the paint adhere better and ensure a flawless finish.

Q: Can elastomeric paint be applied over rusty metal surfaces?
A: No, it is not recommended to apply elastomeric paint over rusted metal surfaces. The rust will need to be removed and the surface primed before applying the paint.

Q: Does the type of metal affect how well elastomeric paint will stick?
A: Yes, different metals may require different types of primers to ensure the elastomeric paint adheres properly. Be sure to check with the paint manufacturer for their recommendations.

Q: Can I use elastomeric paint on outdoor metal furniture?
A: Yes, elastomeric paint can be used on outdoor metal furniture to protect it from harsh weather elements and provide a long-lasting finish.

Q: Is elastomeric paint more expensive than traditional paint?
A: Yes, elastomeric paint is generally more expensive than traditional paint due to its durability and protective properties.

Closing Thoughts

Thanks for taking the time to read this article about elastomeric paint and its application to metal surfaces. Remember to always follow the manufacturer’s instructions and use the recommended primers to ensure the best results. If you have any further questions or would like to learn more, please visit our website again in the future.