What is Elastomeric Coating Made of? | Top Roofing Contractor
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What is Elastomeric Coating Made of

What is Elastomeric Coating Made of?

Elastomeric coatings can be made of several different types of materials, providing them with many different ways to use them as well. It is important you know how to find a good roofing contractor that will help you choose the best material, including the roofing underlayment you should use. Remember that depending on the material you pick, uses will change as well. Keep reading to learn a bit about each kind and the main purposes for which they are commonly used.

What is Elastomeric Coating Made of
What is Elastomeric Coating Made of

Modified Asphalt

This material consists of asphalt and rubber-like polymers. It is commonly used on roofs, despite there are some other applications. As it does not adhere to asphalt directly, it is not suitable for sealing driveways or for coating other asphalts.

This material has many disadvantages. For instance, it is only available in black, which makes the building hotter when it is used on the roof, due to the fact that it absorbs and transfers heat. When it is exposed to UV light, solvents, and grease it softens and deteriorates over time.

What is an Elastomeric Coating
What is an Elastomeric Coating

What is Elastomeric Coating Made of? Water/Vapor Permeability


There are many different categories of polyurethane coatings. Despite they do help to extend the lifespan of wood by preventing rot, none of these are exactly waterproof. They can be used to coat wooden decking, spray-foam, and other construction materials.

One type is the aromatic polyurethanes. Discoloration and chalking over time are among their disadvantages. Despite their appearance is initially pleasing when they are used as a final coat, they are commonly used as a base cover for other polyurethanes. There are also single and modified polyurethanes available.


As moisture vapor can pass through the coating, silicone types of elastomeric coatings are recommended in situations where “breathability” is required. These types of coatings and their uses are actually limited.

This material is not compatible with many others, such as EPDM coating, as it will not adhere to silicone. Silicone is not recommended for roofing or similar uses due to its water vapor permeability.

Elastomeric Coatings
Elastomeric Coatings

What is Elastomeric Coating Made of: DuPont


Made by DuPont, Neoprene is a type of fast-drying and vapor-retarding synthetic rubber. However, when it is used on exterior surfaces, a top coat is required. Therefore, there are several limitations to this type of coatings and their uses.


This is another type of synthetic rubber made by DuPont; however, the Hypalons have more applications than Neoprene. They are commonly used for coating tanks and coolers, as well as in roofing. They can be used as both waterproofing and fire-retardant roofing materials.

Despite it is required to check it with the manufacturer, the Hypalons are compatible with other coatings and can be used as coatings on several of them.

Elastomeric Coating
Elastomeric Coating

What is Elastomeric Coating Made of: High compatibility

Butyl Rubber

What is an elastomeric coating you could use in cold storage units? Butyl rubber is a great option for applications that are highly cold or wet, as it is the most water-resistant coating. It is frequently used in freezers, water storage units, pools, coolers, cryogenic storage units, ponds, and roofs.

Despite its many uses, this coating has also some limitations. It is more sensitive to weather than other materials and tends to become chalky. It can be affected by foot traffic, flying debris, or hail.


As another type of synthetic rubber, it is the most compatible with other materials and has a wide variety of applications. It shows problems with adhesion only with silicone and asphalt, but it can be used on them if an undercoating is used too.

It is frequently used as a waterproofing agent in roofing, and if fireproofing is required, flame-retardant materials can be added to it, making it an ideal fire-resistant roofing material. Its strong resistance allows it to serve as a top-coat without additional treatment.

Will You be Using Elastomeric Coating on Your Roof?

After going over all the different types of elastomeric roofing, will you be using it for your own roof? You could be wondering if you should use elastomeric coating on your roof or not, but with the above reasons, why wouldn’t you? It has many different benefits that could help preserve the life of your roof!

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