Vaults Heavy Duty

Carson Industries manufactures our Polymer Concrete Access Boxes with a blend of graded aggregates in combination with a proprietary mix of the finest polymer resins available, then we add chopped and woven roving fiberglass for increased reinforcement. This matrix of materials and process makes our Polymer Concrete the strongest on the market. Our H-Series™ Polymer Concrete Access Boxes, while being lightweight, have exceptional strength and rigidity. Carson’s Polymer Concrete is approximately 33% lighter than traditional concrete. Our Polymer Concrete Access Boxes meet most state DOT specifications.