Answer: asb

AnswerCrossword Clue
ASB

Old fireproofing material (abbr.)

ASB

Controversial fireproof material: Abbr.

ASB

Fireproofing prod., now banned

ASB
Old curtain material: Abbr.
ASB
Fireproofing substance: Abbr.
ASBFireproof material: Abbr.
ASBFireproofing: Abbr.
ASBMineral fiber: Abbr.
ASBCurtain material: Abbr.
ASBFireproof stuff: Abbr.
ASBKind of curtain: Abbr.
ASBFire retarder: Abbr.
ASBBanned weatherproofer: Abbr.
ASBOld insulating mat'l.