Best Fire Resistant & Fire Retardant Paint (2023 Update) (2023)

Best Fire Resistant & Fire Retardant Paint (2023 Update) (1)

In this article, we’ll cover everything you need to know about fire resistant and fire retardant paints, recommend the best fire resistant paints, and help you understand fireproofing standards set forward by NFPA, ASTM, and UL.

When picking the right paint for your asset, it is important to note the key differences between fire-resistant and fire retardant coatings.

Fire-resistant paints work by creating a barrier against flames. Most of these coatings are intumescent paints, which work by forming a char layer on the substrate when met with flames. These paints are often applied to steel, timber, and plasters to avoid burning and destruction. This paint works by creating gas bubbles that strengthen the paint’s additives when met with flames. When used on steel and timber, the foaming char layer works to add time before flames can penetrate through the substance.

Fire-resistant paints are usually ASTM E-119 tested and certified. ASTM E-119 measures the the time it takes for a coating to fail under extreme heat and flame. Usually these fire ratings can last anywhere from 30 minutes up to 2 hours.

In contrast, most fire retardant paints are not ASTM E-119 tested or compliant. They prevent flame spread and typically have an ASTM E-84 rating. If a building material catches fire, the fire retardant paint works to slow the rate that the flames spread.

However, these paints and coatings are typically not appropriate for critical infrastructure like steel. For most projects that involve structural steel or other critical infrastructure, you’ll need an ASTM E-119-certified fire resistant paint.

We recommend FlameOFF Coating’s Fire Barrier Paint for your next project.

Best Fire Resistant & Fire Retardant Paint (2023 Update) (2)

FlameOFF’s Fire Barrier Paint provides an eco-friendly fire resistant coating that’s 100% ASTM E-119 and E-84 compliant.

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Key features include:

  • E-84 compliant: Class A flame spread (tested and certified by a 3rd party lab)
  • ASTM E-119 compliant: 1 and 2-hour fire rated for long-lasting protection
  • Compatible with steel, wood, gypsum, sheetrock, metal, and more
  • Eco-friendly, low VOC, water-based intumescent coating
  • Gold Supplier Member of National Fireproofing Contractors Association

Learn more about FlameOFF and Fire Barrier Paint.

Now that we’ve covered “fireproof paint” or, rather, fire resistant paint, it’s time to talk about the types of coatings most commonly used for fireproofing.

Two of the most important types of fire resistant paint are intumescent and cementitious paint formats. Cementitious coatings are an older fireproofing that creates a thicker barrier with a cement-based mixture and a binder that adheres to the substrate. Cement is naturally fire resistant, so the cement essentially augments the paint with fire resistant properties.

Cementitious coatings began surfacing in the mid-1900s when durable fireproofing solutions were needed. Concrete enhances the fire strength of a steel building, thus making cementitious paints an option. Over time, as dense concrete became too bulky, lighter cement paint methods were created. This type of coating is best in areas with low moisture exposure, as high moisture can cause an excess of corrosion and can reduce the effectiveness. Two of the biggest benefits of this coating are its affordability, especially for larger projects as well as its lightweight format.

Intumescent paint is a newer method and works by growing and forming a barrier when exposed to extreme heat.

Intumescent paints are relatively newer to the market but show excellent fire ratings and durability. Rather than being mixed with concrete to provide resistance, these coatings expand and char when introduced to flames. Intumescent coatings have been known to swell up to 25 times their original thickness when exposed to fire! The expansion of this coating is vital, as it allows for the volume to increase and the density to decrease, which in turn slows down the heating process. Intumescent paints are easier to apply, have reduced labor costs, and do not allow for gaps, making them better for moist environments. However, this paint is highly sensitive to changes during curing time and can be a costlier choice if multiple coats are needed.

While both formulas have their benefits and disadvantages, the general fireproofing industry often recommends intumescent paint for the majority of common applications. Cementitious paints are not the best for aesthetic appeal and can add weight, while intumescent paints blend into the visuals of the project.

The table below can help you determine which type of fireproofing is right for your project.

Cementitious CoatingsIntumescent Paints
More cost effectiveMore expensive
Not intended for visible areas of a buildingAesthetically pleasing
Coating can crackSmoother finish
Heavy concreteLightweight formulation

Before selecting the paint for your project, it is important to pay close attention to the fire rating standards needed in your specific project. While there are a variety of standards, certain standards must be met for different styles of application. Here is a look at some of the most common ratings and their meanings:

  • ATSM E-84/UL 723- usually just called the “E-84”, this is the most common fire standard. This test measures the flame spread along a sample to determine the predicted burning behaviors. When working on new projects or renovations, keep in mind that almost all facilities require an ASTM E-84 test.
  • UL 263– This method rating tests and certifies the fire protection of structural steel. Often called the “default standard for North America,” this method is key to testing the structural steelwork fire protection before a project is finished.
  • ASTM E-119– This rating/test evaluated the fire-response to a variety of structural substrates in a project. This rating is used specifically to test load bearing items such as walls, partitions, columns, floors, roofs, and structural beams.
  • ASTM E-2768– A newer standard in fire ratings, this test is usually called a 30-minute version of the ASTM E84 test. This test is used for more intricate estimates of fire protection.
  • NFPA 703– This test works best when used on fire-retardant-treated wood building materials.
  • NFPA 286/UL 1715- These tests are often the go-to “defacto room corner tests” and are best for interior testing. The general test room is an 8 foot by 12-foot room with open or closed cell spray foam.

In addition to these tests, paints also come with fire retardant classifications of A through C. The system was originally developed by the National Fire Protection Administration for their “Line Safety Code”. When observing the rules of buildings, make sure to take into account the required retardant classification before purchasing your paint materials.

You can learn more about fire rating classifications here.

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With a variety of fireproof coatings on the market, it can be helpful to see which coatings are the most tried and trusted. Here is a list of some of IPP Magazine’s favorite coatings:

  • FlameOFF Fire Barrier Paint: Fire Barrier Paint is a multi-use coating — the same coating can be used on steel, wood, drywall, and various types of metal. Fire Barrier Paint is ASTM E-84 and E-119 certified; in fact, they list their UL and ICC reports on their website. FlameOFF’s premier coating offers a smooth architectural finish that blends seamlessly with other design elements within your facility. It’s easy to order online, or if you have a larger order you can reach out to their friendly and responsive customer service team.
  • Sherwin Williams Firetex: This paint is a cellulosic intumescent coating with extremely high aesthetic, durability, and performance ratings. Sherwin Williams’s line of FX paints can be used on woods, steels, and a variety of other surfaces, and come with up to four hours of fireproofing.
  • Fireguard E-84: Known for its ability to minimize flame spread, smoke production, and structural damage, this coating is also an intumescent paint. It is quite cost-effective with an average cost of 75 cents per square foot! Also, this paint can be applied to a variety of surfaces with rolling, brushing, or spraying methods.
  • PPG PITT-CHAR NX: This paint provides passive fire protection and is suitable for both on and offshore applications. It can be applied to a variety of surfaces such as aluminum, carbon steel, galvanized metals, and stainless composites. This paint features high durability against vibration, abrasion, impact, and deflection.

Finding Industrial Fire Resistant Paint

If you’re a facility manager, contractor, or engineer looking for fire resistant paint for your facility, it’s best to consult a certified coatings supplier before you buy.

We’ve partnered with top-rated fire resistant coatings suppliers that can provide a free consultation and paint specifications. You can start connecting with FlameOFF Coatings here.

Fire Resistant Paint for Metal

When choosing a fire resistant paint for metal, it’s important to consider ASTM E-119 compliance. Most of the time you’ll be painting structural steel, which needs to meet ASTM E-119 standards in the U.S.

FlameOff’s Fire Barrier Paint is a fire resistant coating that’s intended for a variety of metals including steel, sheet metal, and other materials. You should also look for a versatile paint that can be used across a variety of substrate such as wood, sheetrock, and drywall.

FAQs About Fire Resistant and Fire Retardant Paint

What kind of paint is highly resistant to fire?

Intumescent paints and cementitious coatings are two commonly used fire resistant coatings. Both can be effective, depending on your fireproofing needs.

How does fire resistant paint work?

Intumescent coatings — one of the most popular fire resistant paints — create a char that acts as a barrier between your asset and the fire when heated above a certain temperature threshold.

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How long does fire resistant paint last?

Fire resistant paints need to be maintained and recoated per the manufacturers guidelines. Most fire resistant paints last between 30 and 120 minutes according to their ATSM fire rating.

What happens to paint in a fire?

An intumescent paint will char, and a protective barrier will form over the coating. Cementitious coatings will resist the fire. Normal paint will likely ignite and burn.

Does fire retardant paint work?

Fire retardant paint prevents oxygen from fueling a fire by forming a protective barrier over the asset you’re protecting.

Should you use a fire resistant paint additive?

You can apply fire resistant paint additives, but make sure they’re compatible with your paint. It’s much easier to buy a fire resistant paint that comes with additives and attributes you’re looking for.

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Does fire retardant paint work?

Fire retardant may or may not work for your application. If you need to meet ASTM E-119 fire ratings, you should consider an intumescent or fire resistant paint instead.

What is the most fire resistant paint?

Intumescent and cementitious coatings are among the most fire resistant coatings on the market today.

Is there a paint that makes wood fireproof?

There are certain intumescent paints that can achieve a 1-hour or greater fire rating on wood assemblies and assets. We recommend FlameOFF Coatings.

When should I use fire retardant or fire resistant paint?

Use fire retardant paint when you need to slow the spread of fire, and use fire resistant paint when you need to protect the structural integrity of your asset.

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This article was updated January 12th, 2023 with the latest information about fire resistant and fire retardant paints

FAQs

What is the most fire resisting paint? ›

Thus, asbestos paint is the better fire-resistant paint among all of the above options. Asbestos paints are used in residences, schools, and other public buildings as well as the Commercial establishment and maritime vessels.

What is the disadvantage of fire retardant paint? ›

The disadvantages of intumescent coatings include their instability when exposed to external factors, which leads to a short exploitation period—up to 10 years. In addition, intumescent type coatings often contain halogen flame retardant agents, which form toxic thermolysis products during fire.

What is the difference between fire resistant and fire retardant paint? ›

Resistant is defined as a material that is inherently resistant to catching fire (self-extinguishing) and does not melt or drip when exposed directly to extreme heat. Retardant is defined as a material that has been chemically treated to self-extinguish.

Which is better fire resistant or fire retardant? ›

While both flame resistant and flame-retardant methods both have their place in safety apparel and other industries, flame resistance is probably considered much safer than flame retardant alternatives.

What paint has the highest heat resistance? ›

POR-15 High Temp Heat-Resistant Paint is capable of withstanding extreme temperatures up to 1200°F / 648.8°C and will resist cracking, chipping, and peeling. This high temperature coating is also extremely weather, salt, and moisture resistant.

What is class A fire retardant paint? ›

Firefree Class A (“FfA”) is a premium-quality, water-based, nontoxic, thin-film intumescent flame-retardant paint that's fully tested to meet all ASTM E84 requirements, including ASTM E84 30-Minute Extended. This certification meets the industry standard for noncombustibility.

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