<http://webisa.webdatacommons.org/18250335> <http://www.w3.org/ns/prov#value> "Sealers are stable dispersions of refined coal tar or asphalt in water, with clay or other fillers, and additives, such as emulsifiers and specialty chemicals." . <http://webisa.webdatacommons.org/prov/310263207> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/18250335> . <http://webisa.webdatacommons.org/18250335> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/18250335> <http://www.w3.org/ns/prov#wasQuotedFrom> <forconstructionpros.com> .