For Contractors...If you care about comfort, warmth and indoor air quality, then you are going to love Natural SG (SEAL GUARD). Containing ZERO Volatile Organic Compounds, Natural SG is an advanced acoustical barrier and is the first and only ZEROVOC® underlayment on the market. This new technology provides zero harmful emissions and exceeds all standards for indoor air quality including the California protocol. Specifically engineered for use with laminate, and engineered flooring, superior sound ratings makes this product excellent for use in condominiums. In addition to these great benefits, our specialized formula is really all about comfort, warmth, peace of mind and making your flooring beautiful.