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Perlite Insulation
Specifiers for the industrial processing and power generating industries recognize that stainless steel pipe is susceptible to stress corrosion cracking. Johns Manville's solution is an expanded perlite product with a built-in corrosion inhibitor. Combined with resistance to water absorption, Sproule WR-1200® perlite effectively minimizes corrosion to outer pipe surfaces and equipment while providing excellent thermal insulation.
Perlite
Sproule WR-1200
Sproule WR-1200® is a pre-formed, high-temperature, non-wicking pipe and block insulation. It is composed of expanded perlite that is uniformly reinforced with a high-strength fiber for use on systems operating up to 1200°F (649°C). Sproule WR-1200 is inorganic, non-combustible and meets or exceeds the physical property requirements of ASTM C610. It is produced with XOX Corrosion Inhibitor®, a distinctive formula that inhibits corrosion to outside surfaces of pipe and equipment, especially stress corrosion cracking of austenitic stainless steel.
