Primacoustic
Notes: High-density glass wool, 1.5 in. NRC 1.00 (fabric). Coverage is one 24x48 in Nimbus panel (8 sq ft); sold 2 per box. Altos shape (36x36 / 48x48 in) also available. (Archadia line omitted: its published NRC is generic Broadway boilerplate, not Archadia-specific test data.)
NRC per ASTM C423. Data retrieved 2026-07-02 from the manufacturer source page.