Types of Terrazzo

There are three types of Terrazzo, Cement, Epoxy and Polyacrylate Terrazzo. Below are the advantages and limitations for each type

Portland Cement Sand Cushion & Bonded Acid Washed Terrazzo

Advantages

  • Can be used for interior or exterior use
  • Can be acid washed for added slip resistance in exterior use
  • Topping thickness will accommodate the largest (#7) chip size
  • Is breathable and not affected by moisture vapor transmission
  • Sand Cushion system can accommodate substrate defects

Limitation

  • Requires minimum 2” depression for system installation
  • Vibrant colors are very limited with Portland Cement
  • Glass chips have limited use in Portland Cement
  • Design flexibility due to size of panel limitations
  • Lengthy cure time to achieve final appearance

Epoxy Resin Matrix Terrazzo

Advantages

  • System thickness of 3/8” total, can be used over concrete or wood substrate
  • Virtually unlimited range of vibrant colors available
  • Glass chips can be used in epoxy resin Terrazzo
  • Design flexibility due to minimal divider strip requirements Accelerated chemical cure allows for faster installation due to significantly decreased cure time prior to grinding
  • Color uniformity on large installations due to sophisticated manufacturing process for resin
  • Most cost effective system for interior use

Limitations

  • 3/8” total thickness requires high flatness tolerance of ¼” per 10 sq.ft. in the substrate.
  • Not recommended for exterior use.
  • System not breathable, moisture vapor transmission barrier may be required for slab on grade applications.
  • Maximum chip size that can be used is #2.

Polyacrylate Modified Cement Terrazzo

Advantages

  • System thickness of ½” total, can be used over wood substrate.
  • Glass chips can be used in polyacrylate matrix Terrazzo.
  • Can be used for exterior applications.
  • System is breathable and not affect ed by moisture vapor transmission.
  • Can be acid-washed for added slip resistance in exterior applications

Limitations

  • ½” total thickness requires high flatness tolerance of ¼” per 10 sq.ft. in the substrate.
  • The most vibrant colors cannot be achieved with polyacrylate matrix.
  • Maximum chip size that can be used is #2.