About: http://webisa.webdatacommons.org/31246669

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Wax and shellac (optional)???It is necessary to seal the pores and keep the silicone from sticking if your object is unglazed terra cotta, wood, or other highly porous material.
http://www.w3.org/ns/prov#wasQuotedFrom	makezine.com