For use in the most severe environments, this closed-cell glass insulation helps prevent metal corrosion, is noncombustible, and withstands extreme temperatures, most common chemicals, mold, and liquid and vapor moisture. Made of 100% glass, this insulation is lightweight and rigid, making it a good choice for use in cryogenic systems, hot oil and hot asphalt storage, hydrocarbon processing, and steam and chilled water lines. It also has a high compression strength, and can withstand loads that would crush other types of insulation. This material is also unaffected by humidity and temperature changes, and won't swell, shrink, or otherwise distort. Fit this unslit insulation over pipe prior to system installation.