Glassfiber Reinforced Gypsum - GRG
GRG is a non-combustible material with a zero flame/zero smoke rating, designed for interior applications. Glass reinforced gypsum is similar to old world plaster, but with a much stronger physical properties.
It can be cast into a multitude of finishes, textures and shapes. It is our least expensive material, but is only suitable for interior applications. Typical applications are architectural columns, ceiling domes, decorative moldings, ceiling panels, beams and rafter tails.