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The Complete Guide to Urethane Garage Floor Coating


When it comes to urethane garage floor coating, you want a solution that’s durable, resistant to chemicals, and aesthetically pleasing. Urethane provides all these benefits and more, making it a top choice for both homeowners and professional contractors.

  • Durability: Urethane coatings are known for their toughness. They can withstand heavy foot traffic, vehicle movement, and impact damage.
  • Chemical Resistance: Urethane is highly resistant to oils, gasoline, antifreeze, and many other chemicals you might find in a garage.
  • UV Resistance: Unlike some other coatings, urethane does not yellow or fade under ultraviolet (UV) light, maintaining its appearance over time.
  • Aesthetic Appeal: Available in various finishes and colors, urethane can enhance the look of your garage while providing a sleek and shiny surface.

These benefits not only protect your garage floor from damage but also add value to your home.

Hi, I’m Ronak Kothari, a marketing expert with over 15 years of experience in the industry. I’ve gained extensive knowledge about urethane garage floor coating through my work with Rubcorp and other flooring companies. Let’s dive deeper into why choosing urethane for your garage floor is a smart decision.

Benefits of Urethane Garage Floor Coating - urethane garage floor coating infographic pillar-4-steps

Why Choose Urethane for Your Garage Floor


One of the biggest reasons to opt for urethane garage floor coating is its exceptional durability. Unlike traditional epoxy coatings, urethane provides a tougher, longer-lasting surface. It resists scratches, chips, and abrasions, making it perfect for high-traffic areas. According to Quora, urethane coatings are tough and can withstand the wear and tear from foot traffic and vehicles. This means your garage floor will stay looking great for years to come.

Chemical Resistance

Urethane garage floor coatings are highly resistant to a variety of chemicals, including oil, gas, anti-freeze, and other automotive fluids. This makes them an ideal choice for garage environments where spills are common. As noted in the Reddit discussion, urethane coatings offer superior chemical resistance compared to epoxy, ensuring that your garage floor remains stain-free and easy to clean.

UV Resistance

Another advantage of urethane coatings is their excellent UV resistance. This is particularly important for garages with windows or doors that let in sunlight. UV rays can cause yellowing and degradation in many types of floor coatings, but not in urethane. According to Rubcorp, urethane coatings maintain their color and finish even under prolonged exposure to sunlight, keeping your garage floor looking fresh and new.

Aesthetic Appeal

Urethane coatings are available in a variety of finishes and colors, allowing you to customize the look of your garage floor. Whether you prefer a high-gloss clear finish or a subtle low-gloss grey, urethane has you covered. The Rainguard Water Sealers offer options in high gloss clear, low gloss clear, light grey, dark grey, and beige, enhancing the aesthetic appeal of your space. Plus, the smooth, shiny finish makes your garage look clean and professional.

Safety Features

Safety is another key factor. Urethane coatings often come with anti-slip additives, making your garage floor safer to walk on, especially when wet. This feature is highlighted in the Rainguard Water Sealers product, which includes an anti-slip additive for added safety.

In summary, urethane garage floor coating offers unmatched durability, chemical resistance, UV resistance, and aesthetic appeal. These features make it an excellent choice for anyone looking to protect and enhance their garage floor.

Next, let’s explore how to prepare your garage floor for urethane coating.

Preparing Your Garage Floor for Urethane Coating

Proper preparation is crucial for ensuring your urethane garage floor coating adheres correctly and lasts for years. Here, we’ll walk you through the essential steps: surface preparation, cleaning, and repairing cracks.

Surface Preparation

  1. Clear the Area: Remove all items from your garage. This includes vehicles, tools, and any other objects that might obstruct the coating process.
  2. Inspect the Surface: Examine your concrete floor for any existing coatings, stains, or imperfections. These need to be addressed before applying the urethane.
  3. Remove Existing Coatings: If your garage floor has an old coating, use a diamond grit grinder to strip it off. This ensures the new urethane coating adheres properly.
  4. Check for Moisture: Make sure the concrete is completely dry. Moisture can compromise the coating’s effectiveness. Professionals often use a moisture meter to ensure the floor is dry enough for application.


  1. Sweep and Vacuum: Start by sweeping the floor to remove loose dirt and debris. Follow up with a shop vac to pick up finer particles.
  2. Pressure Wash: For a deeper clean, use a pressure washer. This helps to remove any embedded dirt, oil, or grease stains. Allow the floor to dry completely after washing.
  3. Degrease: Apply a concrete degreaser to stubborn oil and grease stains. Scrub thoroughly and rinse off with water. This step is vital for ensuring the urethane adheres well.

Repairing Cracks

  1. Identify Cracks: Look for any cracks or holes in the concrete. These need to be filled to create a smooth surface for the urethane coating.
  2. Use a Concrete Filler: Apply a concrete filler to any cracks or holes. Make sure to follow the manufacturer’s instructions for mixing and application.
  3. Smooth the Surface: Once the filler has dried, use a grinder or sander to smooth out the repaired areas. This ensures a uniform surface for the urethane coating.

Final Steps

  1. Final Inspection: Before applying the urethane, do a final sweep and vacuum to ensure the floor is completely clean and free of debris.
  2. Dry Time: Ensure the floor is completely dry before starting the urethane application. This typically means waiting at least 24 hours after cleaning.

By following these steps, you’ll create an ideal surface for your urethane garage floor coating. Proper preparation is key to achieving a long-lasting, durable finish.

Next, let’s explore the application process for urethane coating.

Applying Urethane Coating to Your Garage Floor

Applying a urethane garage floor coating is a straightforward process, but it requires attention to detail. Here’s a step-by-step guide to help you get it right:

Application Process

  1. Choose the Right Day: Always apply urethane in good weather, ideally between 50°F and 90°F. Extreme temperatures can affect the curing process.
  2. Mixing: If your urethane coating comes in two parts, like some of Rubcorp’s products, mix them thoroughly according to the manufacturer’s instructions. This ensures the best performance and durability.
  3. Rolling On: Use a 1/4 inch nap roller for the application. This type of roller provides even coverage and helps avoid bubbles or streaks. Apply the first coat evenly across the entire surface.
  4. First Coat: Allow the first coat to dry completely. This usually takes about 12-24 hours, depending on the specific product and environmental conditions.
  5. Second Coat: After the first coat is dry, apply a second coat. Two coats are generally recommended for the best protection and durability. Some products, like Rainguard Water Sealers’ Garage Floor Urethane, specify the need for at least two coats.

Number of Coats

  • Minimum: Always apply at least two coats. This ensures a strong, durable finish.
  • Optional: For high-traffic areas or extra protection, consider a third coat.

Dry Time

  • Between Coats: Wait 12-24 hours between coats. Using a Quick Cure Additive can cut this time in half, making the process faster.
  • Final Cure: After the final coat, wait at least 24-48 hours before walking on the floor and 7 days before parking a vehicle on it. This ensures the coating is fully cured and ready for use.

Weather Conditions

  • Temperature: Apply the coating when temperatures are between 50°F and 90°F. Extreme heat or cold can affect the drying and curing process.
  • Humidity: High humidity can extend drying times, so check the weather forecast and plan accordingly.

Quick Tips

  • Ventilation: Ensure good ventilation during and after application to help with drying and reduce any odors.
  • Clean-Up: Use soap and water for any spills or tools right after application. Clean any overspray on glass or decorative metals with a damp cloth.

By following these steps, you’ll achieve a professional-looking, durable urethane garage floor coating. Next, we’ll cover how to maintain your newly coated garage floor.

Maintaining Your Urethane-Coated Garage Floor

Keeping your urethane garage floor coating in top shape is straightforward with the right maintenance. Here’s how to do it:

Cleaning Methods

Regular cleaning is key to maintaining the appearance and durability of your floor. Here’s a simple routine to follow:

  • Sweep Frequently: Use a soft-bristle broom to remove dirt and debris. This prevents scratches and keeps the floor looking clean.
  • Mop Weekly: A damp mop with a mild detergent works well. Avoid harsh chemicals that can damage the urethane coating.
  • Spot Clean: For quick clean-ups, use a soft cloth and soapy water. This is especially useful for any spills.

Stain Removal

Urethane coatings resist most stains, but accidents happen. Here’s how to tackle common issues:

  • Oil and Grease: Blot the spill immediately with a paper towel. Then clean the area with a degreasing agent and rinse with water.
  • Chemical Spills: Use a neutral pH cleaner and rinse thoroughly. Always wear gloves and ensure proper ventilation when dealing with chemicals.
  • Tire Marks: Apply a commercial degreaser and scrub gently with a soft brush. Rinse well to avoid any residue.

Longevity Tips

To extend the life of your urethane garage floor coating, consider these tips:

  • Use Mats: Place mats at entry points to trap dirt and moisture. This reduces the amount of debris that gets tracked onto the floor.
  • Avoid Heavy Impacts: While urethane is durable, dropping heavy tools can cause damage. Use protective mats in areas where you work with heavy objects.
  • Reapply Coating: Depending on usage, reapply the urethane coating every 3-5 years. This keeps the floor looking fresh and adds an extra layer of protection.

By following these simple maintenance steps, your urethane-coated garage floor will remain in excellent condition for years. Next, let’s address some common questions about urethane garage floor coating.

Frequently Asked Questions about Urethane Garage Floor Coating

Can Urethane be applied over existing epoxy?

Yes, urethane can be applied over existing epoxy. This combination is often recommended to increase the chemical and UV resistance of the floor. As discussed in various sources, urethane topcoats like TL321 and TL322 are designed to enhance the durability of epoxy coatings. Before applying urethane, make sure the epoxy surface is properly prepared and clean. Always follow the manufacturer’s instructions for the best results.

How does urethane coating resist chemicals and stains?

Urethane coatings are known for their exceptional chemical resistance. They create a robust barrier that protects the underlying concrete from harmful substances like oil, gas, anti-freeze, and even mold and mildew. According to Rainguard Water Sealers, their Garage Floor Urethane Coating resists weather, water, and a variety of stains, ensuring your garage floor stays clean and damage-free.

What is the lifespan of a urethane garage floor coating?

The lifespan of a urethane garage floor coating can vary depending on factors like usage, maintenance, and environmental conditions. Generally, a well-applied urethane coating can last between 3 to 5 years before needing a reapplication. Proper maintenance, such as regular cleaning and avoiding heavy impacts, can extend the life of the coating. The durability and longevity of urethane make it a cost-effective investment for protecting and enhancing your garage floor.

By understanding these key aspects, you can make an informed decision about using urethane for your garage floor. Next, let’s wrap up with some concluding thoughts on the benefits of professional application and how it can enhance the value of your home.


Choosing a urethane garage floor coating is a smart move for anyone looking to protect and enhance their garage floor. But why stop at just choosing the right material? Professional application offers several key benefits that are worth considering.

Rubcorp: Your Trusted Partner

At Rubcorp, we specialize in providing high-quality urethane coatings. Our team has the expertise and tools to ensure that your garage floor is coated perfectly. We follow a meticulous process that starts with thorough surface preparation and ends with a flawless finish. This attention to detail ensures that the coating adheres properly and provides maximum protection.

Learn more about our services and how we can help you achieve the perfect garage floor.

Benefits of Professional Application

  1. Expertise and Precision: Our professionals know the ins and outs of urethane application. They can identify and address any potential issues before they become problems, ensuring a durable and long-lasting finish.
  2. Time-Saving: DIY projects can be time-consuming and stressful. By hiring professionals, you save time and avoid the hassle of doing it yourself.
  3. Quality Assurance: We use only the best materials and techniques, ensuring a high-quality finish that DIY kits can’t match. This means better protection against chemicals, stains, and UV damage.
  4. Safety: Applying urethane involves handling chemicals and working in specific temperature conditions. Our team is trained to do this safely, reducing the risk of accidents or poor application.

Enhancing Home Value

A professionally coated garage floor can significantly enhance the value of your home. Here’s how:

  • Aesthetic Appeal: A clean, shiny garage floor can make a big difference in the overall look of your home. It creates a positive first impression for potential buyers.
  • Durability: A urethane-coated floor is resistant to wear and tear, chemicals, and UV rays. This durability can be a selling point, as it means less maintenance for future homeowners.
  • Safety: Our coatings come with anti-slip additives, making your garage safer to walk on, even when wet.

In summary, a urethane garage floor coating is not just a protective measure; it’s an investment in your home’s future. By opting for professional application, you ensure the best possible results, enhancing both the functionality and aesthetic appeal of your garage.

Ready to transform your garage floor? Contact Rubcorp today to get started!

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Creative Director, Rubcorp Distribution, LLC

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