The IMPA 335814 Fire door keep shut sign is a vital safety measure for marine environments, designed to ensure that fire doors remain closed at all times. This sign is constructed with durable materials and features clear, easy-to-read lettering and graphics to convey the importance of keeping the fire door shut in case of emergency. With its strong adhesive backing, this sign can be easily affixed to any surface, including metal, wood, or glass, and will withstand the harsh conditions of a marine environment. This essential safety sign is compliant with IMPA standards and is a necessary addition to any vessel's safety signage to prevent the spread of fire and protect both crew and passengers in the event of an emergency. Trust the IMPA 335814 Fire door keep shut sign to keep your marine environment safe and secure.