Sentinel 538 Sealer/Primer Odor Encapsulant is an innovative water based coating used to seal and lock down odors commonly found on restoration projects. Sentinel 538 is a multi-surface interior grade sealant with great adhesion qualities and a low odor formula that contains no Volatile Organic Compounds (VOC’s). Available in a white, clear, or natural wood finish Sentinel 538 serves as a base coat, primer/sealer offering excellent stain blocking properties. With low permeability characteristics, a single coat is highly effective on most projects. Sentinel 538 is best applied with an airless sprayer and easily cleans up with soap and warm water.