Our MPU Marine Firestop Putty is a non-hardening, intumescent compound designed to seal small to medium size cable openings in fire-rated divisions. Ready-to-use and formulated with 100% solids that never harden or dry out, it provides flexible, removable fire protection for cables in marine bulkheads and decks with superior acoustic performance.

Key Features & Benefits

• IMO FTP Code certified – tested to 2010 standards (Class A-0 through A-60 and H-0 through H-120)
• 100% solids formula – never hardens or dries out for permanent flexibility
• Easy installation and repair – hand-packed into openings
• Removable and replaceable – allows easy cable changes without damage
• Temporary or permanent sealing – versatile application options
• Vibration resistant – flexible to accommodate marine movement
• Aging and weather resistant – long-term performance in harsh environments
• Ozone and UV resistant – withstands marine environmental exposure
• Superior acoustic performance – STC rating of 62 for sound control
• No shelf life limit – indefinite storage capability

Applications

• Cable penetrations in fire-rated bulkheads and decks
• Small to medium openings in marine fire barriers
• Interior penetrations requiring fire and smoke protection
• Electrical box installations with putty pad configurations
• Temporary sealing during construction or maintenance
• Sound barrier applications where acoustic control is required
• Marine construction fire safety compliance

Product Specifications