GM5 is Grandview's fiberglass matte grey fabric, purpose-built for home theatre rooms where deeper black levels and contrast matter more than raw brightness.Enhanced Black Level & ContrastThe grey surface absorbs ambient light spill and elevates black levels, adding perceived depth and contrast compared to a standard white screen.93% Color RestorationDespite the darker base, GM5 retains 93% color restoration with a 0.8 gain and 160° viewing angle, keeping colors rich rather than washed out.M1 Fire-Rated & Mold ResistantBacked by a fiberglass support layer, GM5 carries an M1 fire-prevention rating and Level 0 mildew proofing, with anti-oxidation and moisture resistance for long-term use.