Sentinel 537 Low Viscosity Odor Encapsulant is a water based liquid sealant used to lockdown odors commonly found on restoration projects. Sentinel 537 is a multi-surface interior grade sealant with great adhesion qualities and a low odor formula that contains no volatile organic compounds (VOC’s). Sentinel 537 is available in a clear formula. With low permeability characteristics a single coat is highly effective on most projects. Sentinel 537 is easily applied with a variety of applicators such as sprayers and foggers.