How to Use Polyurea

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Polyurea is a plural component polymer that can be used for many types of industrial protective coating applications by being sprayed on just about anything you want to protect and maintain. Polyurea is incredibly durable, while also including flexibility to expand and contract as needed based on weight or temperature changes. Because of its durability it can even be used for water containment or other types of storage. Polyurea is oil, chemical, and scratch resistant - which makes this a great product for indoor or outdoor use.

Though all spray coatings are applied in a similar way using high-pressure spray guns, longer gel-time formulations can be applied with rollers. Altering the formulation enables customization for a specific application.

The environment, intended function, hydrolytic resistance, static or dynamic nature of the application, thermal shrinkage, operating temperature range and other variables should all be considered for an adequate material selection.

Here are a few questions that should be considered:

  • What kind of protection are you needing?

  • Will the application be near extreme temperatures or fires?

  • Does the application require impact or abrasion resistance?

  • Is the nature of the application static or dynamic?

  • Is resistance to direct sunlight and UV exposure important?

  • What is the expected operating temperature range?

  • What kind of chemical exposure should be expected?

  • What is the importance of having hydro resistance?

How to Apply Polyurea

Performance of the coating is dependent on surface preparation. If the coating doesn’t stick, it isn’t going to work. 

After your surface preparation, Always start by looking for such things as oils, acids, salts, and other elements that could impair the coating. Based on those findings, follow with the correct approach to preparing the surface.

Next, you will need to extract grease and oil first by using a good commercial-grade degreaser. After this, you will need to move to a chloride and sulfate removal. Use a widely accepted chloride/sulfate extraction product to help the bonding process with the polyurea. 

Before spraying, replace or fill caulking sealants and repair damaged, cracked, or spalled concrete surfaces that will receive new coatings. After your cracks have been sealed, it is time to prime your surface. Marvel offers an amazing primer for you to use in this step. Always make sure you are using the correct safety precautions and wearing the proper gear to protect you and your surfaces around you. 

​​Bag off and mask the area as needed to protect against overspray. Make sure all of the fixtures and vertical surfaces are covered. 

Next, begin spraying! 

Some potential challenges to be aware of while spraying:

  • Watch out for overspray. Make sure to pay attention to where your coating is going to avoid any issues with the spray bonding to unwanted surfaces.

  • What out for pinholes that can transfer through the base coating during the first two minutes of spraying. If this happens, stop spraying and prime again.

  • Pay attention to your spraying-off ratio and monitor your equipment closely. If this is not something you watch out for, you can find yourself in hours of tough cleanup.

Marvel Industrial Coatings are the premier provider of Polyurea Spray-On Liner Systems, Industrial Protective Coatings, Spray Foam Solutions, and Industry-leading Technical Support. Providing top notch training and first-class technical support, our team has you covered from start to finish. 

Be a coat above the rest, and add Marvel to your product line today and partner with an industry leader in quality, value, and service. Just spray it. We've got you covered. 

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