Mixing:

Mix two parts of A and one part of B together at low speed
in a separate container for a minimum of three
minutes, until a completely homogeneous mixture is obtained. Make sure to scrap sides and bottom
of mixing container so no unmixed material remains. 

Once the product is properly mixed, it needs
to be immediately poured on the floor. Leaving mixed material
for too long in a mixing pail will create an exothermic reaction and
the product will no longer be usable.

Application:

Apply with a squeegee in a thin coat
without back rolling to seal the surface properly. This will also
help reduce the creation of pin holes. 

If there is appearance of pinholes during the application, allow sufficient time to go back and
either burst the pin holes by rolling back and forth or with another
squeegee pass. If there are still pinholes after applying the first
coat, sand and plug the pinholes with epoxy gel prior applying
the second coat. A thickness of 4-6 mils is recommended for the
EPOXY PRIMER

LABPOX Primer | 100% Solids Epoxy Primer for Concrete Floors

LABPOX Primer is a professional grade, 100% solids, 2 to 1 epoxy primer engineered to create a strong, uniform bond between concrete and your flooring system. Designed with advanced pinhole mitigation technology, this primer reduces surface defects and provides a consistent foundation for metallic, flake, and solid color epoxy floors.

This is not just a primer. It is the layer that determines whether your entire floor system performs the way it should.

Where LABPOX Primer Fits in Your System

• First coat directly over properly prepared concrete
• Reduces outgassing and pinholes in the slab
• Improves adhesion of base coats and body coats
• Used under metallic, flake, and solid color epoxy systems
• Critical layer for long term system performance

Key Features and Benefits

• Pinhole Mitigation Technology: Reduces pinholes by up to 98 percent
• 100% Solids and No VOC: Clean, solvent free formulation
• Low Viscosity: Approximately 300 cps for excellent penetration into concrete
• Superior Adhesion: Bonds aggressively to properly prepared concrete surfaces
• Early Blush Resistance: Helps maintain a clean surface for recoating
• High Elongation: Absorbs impact and accommodates minor slab movement
• Fast Recoat Window: Allows efficient system installation
• Low Odor: Suitable for interior applications

Why This Primer Matters

Most coating failures start at the concrete surface. Air trapped in the slab can rise during installation and create pinholes, bubbles, and weak bonding points.

LABPOX Primer is designed to penetrate the surface, seal the slab, and create a stable base so the rest of your system performs as intended.

If your slab is porous, inconsistent, or prone to pinholes, this step is essential. Without a dedicated primer, you risk your decorative coats being ruined by outgassing from the concrete below.

Technical Performance Snapshot

Surface Preparation

• Concrete must be clean, dry, and free of contaminants.
• Remove grease, oil, curing agents, and coatings.
• Mechanically grind the surface to achieve a proper CSP 2 or CSP 3 profile.
• Concrete should be cured for at least 28 days.

If the slab is newer than 28 days or has elevated moisture levels, use a moisture vapor barrier system like MVB FAST before applying this primer. Proper preparation is required. This product solves adhesion problems, not surface contamination.

Mixing and Application

• Mix Ratio: 2 parts Part A to 1 part Part B.
• Mix Time: Minimum 3 minutes with a low speed drill (300 to 450 RPM).
• Technique: Scrape sides and bottom of container while mixing.
• Placement: Pour immediately after mixing.

Apply using a squeegee and back roll with a high quality roller to ensure even coverage and proper penetration into the concrete surface. Porous or soft concrete will require additional material to achieve full coverage and proper sealing.

Frequently Asked Questions

Do I really need a primer?
Yes. A primer improves adhesion, reduces pinholes, and ensures a consistent base for the rest of the system. It is your insurance policy against coating failure.

What does pinhole mitigation mean?
It helps prevent small air bubbles from forming in your coating by sealing the slab. This stops air from escaping the concrete and becoming trapped in the wet resin.

Can I apply this directly to concrete?
Yes. This product is designed specifically to be applied directly to properly prepared concrete surfaces.

When should I use a moisture vapor barrier instead?
If your slab has high moisture levels (over 75 percent RH) or is newly poured, a moisture vapor barrier should be used before this primer.

How soon can I apply my next coat?
You can typically recoat within 3 to 24 hours depending on site conditions and temperature.

What happens if I wait longer than 24 hours to recoat?
You must sand the surface to a dull finish to ensure the next coat bonds properly, otherwise you risk delamination.

Is this primer low odor?
Yes. Being 100 percent solids with no solvents, it is virtually odor free and safe for interior use.

Can I use this for outdoor applications?
This system is intended for interior use. For exterior projects, contact us for UV stable options.

What tools do I need for application?
A flat or notched squeegee to spread the material and an 18 inch roller to back roll it into the pores.

Can I add color to this primer?
Yes, it can be pigmented to provide a uniform base color for your subsequent layers.