One Stop Epoxy Urethane WB | Interior Topcoat for Epoxy Floors

One Stop Epoxy Urethane WB is a professional grade water based urethane designed for high performance interior flooring. While modern coatings like Slow Go Polyaspartic and Premera T2 offer advanced speed and clarity, this Water Based Urethane remains the premier choice for occupied residential and commercial spaces where low odor and cost efficiency are the top priorities.

Engineered for installers who need a forgiving application window without the heavy chemical smell typical of high solids polyaspartics, this urethane provides a durable, reliable finish for metallic, solid color, and flake systems. It is the perfect balance for projects that demand a professional interior result on a budget conscious scale.

Choose this topcoat when low odor and application control are paramount for your interior environment.

Where This Product Fits in Your System

This protective finish is designed to lock in your decorative system and provide reliable wear resistance:

• Topcoat for Metallic Dream Epoxy
• Seal coat for solid color epoxy floors
• Topcoat for partial flake systems
• Protective finish over 100% solids epoxy
• Grind and seal applications directly on concrete

Pro Note: While this urethane is highly durable for standard use, for industrial environments, heavy manufacturing, or areas subject to constant forklift traffic, we recommend the Labfender Polyurethane System.

Mixing and Application Instructions

Step 1 Pre Mix

This product features a 3 to 1 mix ratio (three parts resin to one part catalyst). This is a water based product, settlement is normal and expected. Blend the bucket of BASE (Part A) for 1 minute before pouring into a larger bucket and combining with activator.

Step 2 The Blend

• For 1 Gallon Kits: Pour Part A and Part B into a larger mixing bucket and blend for 2 minutes using a paddle mixer.
• For 2 or More Gallons: When mixing multiple kits together (up to 4 gallons in a 5 gallon bucket), you must use a Box Mixer and blend for 2 - 3 minutes to ensure a complete chemical reaction.

Step 3 Application

Pour the mixed material 1 - 1.5 gallons at a time into an 18 inch paint tray. While wearing spiked shoes and using a 1/4 or 3/8” nap epoxy roller (ensure the roller is de-shedded prior to use), load your roller and cover an area 4 ' x 4' rolling out the material in a "M" pattern left to right, then a "W" pattern right to left, leaving no roller lines behind. For large areas Multiple people should work this pattern loading the floor as one "Finisher" walks side to side back rolling the material over lapping by 2 inches with each pass. Do not wait to back roll as the product can tack over quickly and roller pickup may occur

Small Projects: You may utilize a paint tray and dip and roll using a 1/4 or 3/8” nap epoxy roller (ensure the roller is de-shedded prior to use). To avoid roller lines, you may backroll the floor before the product becomes tacky.

The "Orange Peel" Mitigation Tip

To achieve a professional, smooth finish and eliminate the "orange peel" texture typical of standard urethanes, add 12 ounces of water per kit into the initial mix. This improves the flow and leveling characteristics, resulting in a significantly smoother, more consistent surface reflection.

⚠️ ENVIRONMENTAL WARNING: Do not apply in direct sunlight or on sunbaked surfaces. Additionally, do not apply with air blowing directly on the floor from fans or HVAC systems. Moving air will cause the coating to skin over before it has a chance to properly lay down, leading to permanent surface defects.

Coverage Rate Chart

Coverage varies based on dilution and application type. Use the following table as a guide:

Cure Schedule and Recoating

• Tack Free: 6 to 8 Hours
• Recoat Window: 12 to 24 Hours
• Heavy Foot Traffic: 48 Hours
• Vehicular Traffic: 72 Hours

Sanding Requirements: A second coat may be applied within 24 hours without sanding. After 24 hours, you must sand the surface with 100-120 grit to create a mechanical bond before applying additional coats.

Frequently Asked Questions

Will I get roller lines if I use this urethane topcoat?
Roller lines are almost always a result of improper application technique. To ensure a uniform finish, it is critical to use an 18-inch roller for your main floor area. This provides equal down pressure across the entire surface, preventing the "squeeze lines" commonly caused by 9-inch roller frames. Use a 9-inch roller only for detail work along the edges.

Do I need a primer if I am doing a "Grind and Seal" directly on concrete?
If you apply urethane directly to raw concrete, expect to apply multiple layers as the porous slab will "drink" the material. To prevent an uneven finish and save on material costs, we highly recommend first applying our One Stop WB Primer. This seals the concrete and provides a consistent foundation for the urethane.

How do I stop my urethane from having an orange peel texture?
Standard urethanes are thick. By adding 12 ounces of water to your mixed kit, the product thins just enough to level out perfectly, eliminating almost all orange peel characteristics for a much smoother finish.

Is this product suitable for a warehouse with forklifts?
While this urethane is very scratch resistant, it is designed for foot traffic and light vehicular use. For industrial environments with constant forklift traffic, our Labfender Polyurethane is the recommended system.

Why is sanding required after 24 hours?
After 24 hours, the surface becomes too smooth for a chemical bond. Sanding creates a mechanical profile that allows the new layer to anchor securely to the previous one.

Can this be used for outdoor concrete?
No. This is an interior topcoat. For exterior patios or driveways, use a specialized exterior-grade breathable sealer designed to handle moisture movement through the slab.

Can I apply this over a previous coating?
The surface must be thoroughly cleaned and mechanically sanded to ensure a proper bond. Applying over an old coating without proper mechanical preparation will likely result in delamination.

What is the effect of high humidity on application?
Humidity above 75% can slow the evaporation of water from the coating, which may cause a cloudy or "milky" finish. It is best to maintain a controlled interior environment during the cure.