Ten Things You May Not Know About Greenstar BLOX

(Mason, Texas) Mason Greenstar, Inc. has waded through an evolution of change in bringing its environmentally friendly and sustainable building material, Greenstar BLOX®, to consumers. From changes with ingredients to changes in production methods, the technology has stayed the course when proving its worth by passing the most stringent of tests for building materials. As the accomplishment of mass production is closer than ever, all roads are leading to changes in the ways we construct our homes and buildings in the United States. Here are ten things you may not know about the past and future of Greenstar BLOX®.

    • The very first Greenstar BLOX® were cast in a form made from 2″x4″ lumber. (Pictured below left)&nbsp This mold now serves as a shelf in the Mason Greenstar BLOX® & BRIX Museum. The molds that are used today (Pictured below right) during automated processes are much more advanced and include features such as monitoring systems and drainage routes to handle displaced water more efficiently during casting.


    • The mortar that is used in stacking Greenstar BLOX® is made from the same material as the blocks themselves. This creates a monolithic structure. By using like materials, the wall system will expand and contract at the same rates reducing or eliminating cracking throughout the lifetime of the structure.
    • In 2011, Greenstar BLOX® was recognized by the Eureka! Foundation and the Texas State Comptrollers Office as one of six top emerging technologies in Texas. This served as a springboard for Greenstar BLOX®, launching the technology into a higher level of notoriety and recognition. Mason Greenstar has continued to garner worldwide acclaim and attention as they bring the technology to market.
    • In a recent test at Intertek laboratories in Elmendorf, Texas, Greenstar BLOX® gained a 2-hour fire rating. The 10’x10′ Greenstar BLOX® wall was exposed to temperatures up to 1800 degrees. While the “hot” side of the wall saw minimal effects from the fire, the “cold” side maintained an average temperature of 85 degrees over the two hour period. The thermal mass performance of Greenstar BLOX® can mean lower energy bills for a resident. View the test here.
    • The first Greenstar BLOX® home was built in Mason, Texas in 2002 (Pictured below). Over its 12 year lifespan, the home has been left completely unsealed on the outside so the owners, Mason Greenstar President Zach Rabon and his wife Kimberly, could see the material’s performance as it weathered through the seasons. To date, there have been zero issues with the home, and the material has proven to be incredibly resilient.


  • Currently, there are seven states that are home to Greenstar BLOX® structures… Colorado, Arkansas, Louisiana, Oklahoma, New Mexico, Nevada, and Texas. Texas has the most projects, approximately 35.
  • Greenstar BLOX® was recognized at the 2014 World of Concrete in Las Vegas, Nevada as the Most Innovative Product in the Masonry Materials & Equipment Category. The environmentally friendly technology received the ‘Industry Choice’ Award which is voted on by exhibitors and attendees of the trade show.
  • Greenstar BLOX® is a FEMA Certified Safety Shelter Component. Able to withstand 220 M.P.H tornado and hurricane force wind speeds. View the test here.
  • Texas Tech University in Lubbock, Texas has conducted the most extensive research on Greenstar BLOX®. The Edward E. Whitacre College of Engineering has been at the forefront of the testing and has identified properties and performance features of various Greenstar BLOX® recipes and products. Mason Greenstar and Texas Tech University have established a corporate partnership agreement and plans are underway to begin using Greenstar BLOX® in projects on campus.
  • Greenstar BLOX® have always been made from recycled State of Texas newspapers, phone books, and lottery tickets. This is changing, as Mason Greenstar is exploring alternative recycled raw materials that will provide a sustainable feedstock supply and help to protect the planet by diverting would-be waste from landfills.

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