Assertion: space shuttle's protection system | /r/MadeOf | spray
Facets:
value: on foam insulation
type: LOCATION
value: primarily
type: DEGREE
Source sentences:
text: The ET thermal protection system consists primarily of spray-on foam insulation (SOFI), plus preformed foam pieces and premolded ablator materials.
text: Thermal Protection System Consists of sprayed-on foam insulation and premolded ablator materials.