Industrial Insulation Group (IIG) was formed in 2002 as The Calsilite Group and Johns Manville Corp. merged the manufacturing capabilities for several high profile and widely used product lines serving North American and global industrial insulation markets. Thermo-12® Gold Calcium Silicate, Sproule WR-1200™ Perlite and Super Firetemp® Fireproofing were the most recognizable brands for use in elevated temperature processes and fireproofing in the refining, petrochemical, power generation, pulp and paper, metals manufacturing and other sectors.