STI Marine was founded over 25 years ago and manufactures a full line of penetration seals and cable transits for fire-rated bulkheads and decks. STI Marine’s solutions offer the fastest and most cost- effective installation for both water-tight and non-water-tight divisions. With innovative products and a global presence.

Our Mission
To provide innovative and cost-effective firestop solutions.

Our Core Values
- Firestopping and its important role in life safety
- Our customers' success and making their experience with us as valuable and enjoyable as possible
- Delivering knowledge and outstanding technical support
- Maintaining a culture of integrity, caring, respect, flexibility, teamwork, and fun
- Developing high-quality, innovative, and environmentally responsible products
- Our employees and their personal and professional development
- Financially sustainable performance

PENETRATIONS
Caulks, Sealants & Putties
Collars, Wrap Strip & Cast-In
EZ-Path Fire-Rated Pathways
Electrical & DataCom Cabling
Electrical Circuit Protection
Outlet & Panel Box Protection
Large Opening
Other