TERRAZZCO EZPour Epoxy 158 Terrazzo Product

TERRAZZCO Groutless EZPour Epoxy 158

Durable and Decorative Epoxy Resin for Terrazzo Flooring


TERRAZZCO® Groutless EZPour Epoxy 158 is a pigmented, 100% solid (VOC free), two-component epoxy resin system. When combined with aggregates and poured in place to 1/4” or 3/8” nominal thickness, it yields a highly decorative and durable terrazzo flooring system.

  Built to Last a Lifetime. Lowest Flooring Lifecycle Cost for Commercial Buildings


  Greenguard Certified with zero VOCs


  Quick and Easy to Install

Typical Uses of EZPour Epoxy 158

TERRAZZCO® Groutless™ EZpour Epoxy 158 is perfect for almost any surface where a uniformly even, a highly durable product is desired. TERRAZZCO® Groutless™ EZpour Epoxy 158 provides the best in aesthetic value and innovation. As a result, this epoxy terrazzo is ideal for commercial, industrial, and institutional uses.  Groutless™ EZpour Epoxy 158, when integrated with marble or granite aggregate resists heavy industrial wear and chemical corrosion making it perfect for pharmaceutical and chemical plants. TERRAZZCO® Groutless™ EZpour Epoxy 158 is the superior decision for educational institutions, medical centers, sports facilities, and institutions because of its hygienic, smooth surface that is effortless to clean.


Groutless™ EZpour 158 resin often contains recycled materials such as fumed silica as well as waste filler powders from the glass and mineral industry. Combine this product with locally sourced and/or recycled materials and you will have the perfect environmentally friendly flooring surface that will most likely be used for the entire life cycle of the building in which they are installed.

Groutless Epoxy

TERRAZZCO® Groutless™ EZPour Epoxy 158 matrix has been formulated to cure with fewer pinholes reducing the amount of labor required in the grouting phase of any terrazzo project. This factor leads to lower labor costs and lessens the time needed to finish a terrazzo floor installation. In addition to dramatically fewer pinholes during the installation process, the terrazzo is also less likely to develop new pin holes commonly caused by regular floor maintenance during the life span of the floor.

Advantages of EZPour Epoxy 158

  • VOC free for a healthier environment
  • Contributes to LEED® credits
  • Bacteria and Chemical Resistant
  • Up to 90% fewer pinholes than other epoxy resin products
  • Manufactured and supplied from Southeast United States
  • Lowest life-cycle costing flooring system available
  • Extensive color capabilities allow for unlimited design variations
  • Self-priming, no primer needed
  • Product is GREENGUARD and GREENGUARD Gold certified


TERRAZZCO® Groutless™ EZpour Epoxy 158 can be tinted in virtually any color. Request a custom color match with the TERRAZZCO design team.


TERRAZZCO® Groutless™ EZpour Epoxy 158 resin part A is packaged in 5-gallon pails or 55-gallon drums. TERRAZZCO® Groutless™ EZpour 158 hardener part B is packaged in one-gallon cans, or 5-gallon pails.

Product Information

Self Life: Epoxy resin system has a 1-year shelf life from the date of manufacture.


Storage Conditions: It is suggested that materials are stored in a temperature and humidity controlled environment. If this is not possible materials should be allowed to acclimate to controlled environmental conditions of application. Keep resins and hardeners separated from each other until ready for use. Materials should be kept away from sources of ignitions. Materials should be stored in their original unopened container.


VOC Contents: Zero VOCs


Shipping: Available in the United States and North America. Contact Sales for Quote.

Technical Information

Hardness: 83,5


Tensile Strength: 9,580 psi


Compressive Strength: 13,260 psi


Flexural Strength: 4,100 psi


Flammability: Self-extinguishing <.25″


Bond Strength: 400 psi (100% concrete failure)

Mixing Ratio

TERRAZZCO EZPour Epoxy has a 5:1 ratio of Part A resin to Part B hardener.

Mixing Instructions

Premix TERRAZZCO® Groutless™ EZPour Epoxy 158 resin Part A before using. Mix five (5) parts of TERRAZZCO® 158 resin part A with one (1) part of TERRAZZCO® hardener 158 Part B by volume with a slow speed drill until liquids are completely blended. Introduce the appropriate amount of aggregate and continue to mix. For complete installation instructions, contact your Concord Terrazzo Company representative.

Working Data

Working (Pot) Life: 40-50 minutes @ 75­°F


Full Set Time: 18-24 hours @ 75°F


Full Cure and Maximum Performance: 5-10 days


3/8″ Epoxy Terrazzo: 45-50 square feet per mixed unit

Mixing and Application of EZPour Epoxy 158



Concord Terrazzo Company offers a complete epoxy terrazzo system. For best results when pouring terrazzo in place, contractors will require the following materials for their mix:


  • TERRAZZCO EZPour Epoxy 158 Part A resin
  • TERRAZZCO EZPour Epoxy 158 Part B hardener
  • Minimum 180 pounds of specified aggregate per mix
  • 50 Pounds of AFT-20 Filler Powder per mix


Browse our entire selection of epoxy resin systems. For more information, click the product name.

  • MMS 950 is required when relative humidity (RH) within the concrete substrate exceeds 75% when tested with in-situ probes.  MMS 950 should be applied to cracks prior to those cracks being filled with rigid epoxy.



  • Floor Aid Flexible Membrane 528 should be used to treat all cracks, control joints & cold pour joints in the substrate. (Do not fill cracks with Flexible Membrane 528.  Rigid epoxy such as  Groutless EZPour Epoxy 158 or Leveling Fill Epoxy 162 should be used)



  • Leveling Fill Epoxy 162 may be required to fill any cracks, voids and/or if leveling is needed.


Epoxy terrazzo is a sustainable flooring system. TERRAZZCO EZPour Epoxy 158 and aggregates contribute to the US Building Green Council’s credits for the LEED Rating System. Review the Health Product Declaration for the TERRAZZCO EZPour Epoxy 158 System.



Health Product Declaration


TERRAZZCO Flexible Membrane 528

Floor Aid Flexible Membrane


A two-component epoxy system designed to assist in the prevention of substrate cracks in an epoxy terrazzo floor.


View Product

TERRAZZCO Moisture Mitigation System 950

Moisture Mitigation System


A two-component epoxy resin system providing a barrier against moisture vapor mitigation of concrete.


View Product

TERRAZZCO Joint Filler 1200

Flexa-Flex Joint Filler


A two-component flexible epoxy joint filler that absorbs the impact and shock of heavy loads while sealing joints encountered in terrazzo.


View Product

TERRAZZCO Leveling Fill Epoxy 162

Leveling Fill Epoxy


TERRAZZCO Leveling Fill Epoxy is a two-component epoxy resin system applied by trowel to the desired thickness.


View Product

TERRAZZCO Bonding Agent 159

Bonding Agent


TERRAZZCO Bonding Agent is designed to promote adhesion between concrete and cement-based terrazzo flooring.


View Product


TERRAZZCO EZPour Epoxy 158 can be tinted to virtually any color.


Request a sample for your project. Browse our sample collection or submit a custom color match from a Sherwin Williams or Benjamin Moore color deck. We provide free samples to the architectural and design community.



Terrazzo Samples


Polished Durable Terrazzo



TERRAZZCO EZPour Epoxy 158 yields a durable flooring system that will last the lifetime of any building structure.



Learn More

Glass Terrazzo Floor

Design Flexibility


TERRAZZCO EZPour Epoxy 158 yields a customized epoxy terrazzo surface, designed in any color and choice of aggregates.


Learn More

Sustainable Terrazzo Flooring



TERRAZZCO EZPour Epoxy 158 is Greenguard Gold Certified, supporting healthy environments with zero VOC emissions.


Learn More

Low Maintenance Epoxy Terrazzo Floors

Low Maintenance


TERRAZZCO EZPour Epoxy 158 is low maintenance, saving building owners annual costs to clean and maintain their flooring system.


Learn More

TERRAZZCO® Brand Products Logo White



Let’s discuss your project! Our representatives are available to discuss solutions with you.