Background

Nitra-Seal is an advanced composite vapor barrier system incorporating a Nitra-Core™, a nitrile-advanced asphalt latex component applied between two layers of high density polyethylene (HDPE) material bonded to a geotextile. This multi-layer system provides enhanced protection against indoor air exposure to sub-slab chemical vapors. Nitra-Seal provides a significant improvement over comparable composite vapor barrier systems on the market. In lab testing, Nitra-Core delivered 10x greater chemical resistance against VOCs in comparison to SBR latex asphaltic sprays. Nitrile’s chemical resistance is long-established, verified in the laboratory to be highly effective against a wide range of VOCs like chlorinated solvents, petroleum contaminants, and methane. Workers commonly use nitrile-enhanced materials in the environmental and medical fields as personal protective equipment (i.e., PPE) due to its chemical resistivity, puncture resistance, and tensile strength. These latter two features are uniquely beneficial for use in the construction industry where strong, flexible, and puncture-resistant materials are desirable for damage protection against moving construction workers, equipment, and tools.

Nitra-Seal case study

Nitra-Seal Protects Quick Service Restaurant from Vapor Intrusion