Frequently Asked Questions

If there is a question you don't see here, feel free to contact us by email or phone and we'll be happy to answer it and add it to the list below.


What is the Life Span of AGT™ Glow Stone? 
AGT™ glow stones will continue to function in a cementitious or resin-epoxy matrix for 20+ years.

Will AGT™ glow rocks shrink or expand in concrete?
Absolutely not. AGT™ Glow Stone will NOT shrink OR expand under any extreme environmental conditions from high desert heat to cold winter conditions.

Are AGT™ Glow Stones Toxic?
AGT™ glow stones are non-toxic, non-radioactive photoluminescent aggregates.

How can I integrate the AGT™ Glow Rocks or Glow Sand into my design/build? 
AGT™ Glow Stones and Glow Sand can be integrated into any type of design or structure which utilizes – cement, concrete, plaster, epoxy or resins. Visit the Projects section to see what others have created with AGT™.

What color is the AGT™ Glow Stone during the day? 
AGT™ glow aggregate is off-white or light yellow in color during the day depending on the glow color you choose - allowing it to blend seamlessly into any surface design.

What types of surfaces can  AGT™ glow aggregate be used on? 
AGT™ glow stones and glow sand can be used as a unique functional design element on ANY type of surface application ranging from but not limited to:

EXTERIOR: Pedestrian Walkways, Bike Paths, Driveways, Patio & Pool Decks, Stairs, Outdoor Entertainment Areas, Residential Pathways, Pools, Spas, Benches, 3D Sculptures, Exterior Support Walls, and Pavers etc...

INTERIORS: Floors, Walls, Kitchen Counters, Bar Tops, Tables, Bathroom Vanities etc...

Can AGT™ glow aggregate be used to create shapes or logos? 
Yes - AGT™ glow rocks and glow sand can be easily utilized to form shapes or logos using the same process used by terrazzo and epoxy finishers. Visit the Projects section to see more applications.

Can AGT™ glow stones or glow sand be utilized as an effective marker? 
AGT™ Super Luminosity glow stone and glow sand can be mixed with epoxy or cement based coating materials to form directional markings for pedestrian and/or vehicle traffic applications. 

How can I purchase AGT™ Glow Aggregates? 
You can purchase up to 50lbs of AGT™ glow stone or glow sand directly online. For volumes higher than 50, please contact Keith at 1 855 778 8438 or via email:

Volume Discounts Available.