Metacaulk Fire Rated Mortar is a rapid-hardening gypsum/cement compound with the best combination of workability, strength & fire resistance. When mixed with clean water to a suitable consistency it forms a rigid, gas tight, fire-resistant seal.

Features

• Systems rated for up to 4 hours & tested in accordance with ASTM E 814 (UL 1479) and ULC-S115-95 test standards
• Non-sag adjustable consistency (pourable or trowelable)
• Sets without shrinking Protected in wet & dry stages against mold growth with a combination of biocides
• Safe and simple to use- no special tools needed to mix or install
• Workable in approximately 45 minutes & can easily be cut/drilled/resealed if future penetrants are needed. High yield per pound

45 lb bag