Versatile, mold-resistant hybrid sealant
Sikaflex®-591
Premium, Multipurpose Marine Sealant
The Latest Innovation for Above and Below Water Line Sealing Applications
Sikaflex®-591 is a premium performance, multipurpose marine sealant based on Sika’s Silane Terminated Polymer (STP) technology. Resistant to weathering and seawater, Sikaflex®-591 provides excellent UV stability, superior application properties, and adhesion to most common marine substrates, making it the perfect all-around sealant for a wide range of above and below the water line applications.
Download the Sikaflex®-591 Sales Flyer
Product Benefits
Sikaflex®-591 provides excellent adhesion to most common marine substrates, such as gelcoat, fiberglass, stainless steel, aluminum, copper, brass, bronze, standard marine primers and paints, SMC, ABS, PVC, wood, and plywood.
Areas of Application
Sikaflex®-591 is an extremely versatile, highly flexible sealant that bonds well to most common marine substrates to create a durable, long-lasting, waterproof seal. Its outstanding application characteristics and resistance to marine weathering conditions makes it ideal for a wide range of interior and exterior sealing applications, as well as above and below the water line usage.
- Fitting, fixture, and hardware sealing
- Deck to hull sealing
- Interior and exterior sealing
- Rub rail and guard sealing
- Vent sealing
- Bilge sealing
- Hatch sealing
- Through hull fittings sealing
- Watertight sealing
- Sink and shower sealing
- Port sealing
- Chain plate sealing
- Keel joint sealing
- General seam sealing
Sikaflex®-591 is an above and below water line marine sealant that can be used for a wide range of boatbuilding, repair and maintenance applications.
Sikaflex®-591 is suitable for elastic, vibration-resistant joint seals and can be painted with most conventional marine paint systems. It also meets the low spread flame requirements (FTP Code Part 5) set by the International Maritime Organization (IMO). Sikaflex®-591 is compatible with fiberglass, gelcoats, most common metals (stainless steel, aluminum, copper, brass, bronze), and plastics (SMC, ABS, PVC). Suggestions for surface preparation can be found on the current edition of the appropriate Sika® Pre-treatment Chart.
SIKA MARINE - THE PROFESSIONAL’S CHOICE
Sika is committed to providing the Marine industry with best-in-class solutions for boatbuilding and repair. Our comprehensive marine catalogue includes:
- Adhesives
- Sealants
- Structural adhesives
- Fillers & fairing compounds
- Extrudable tooling pastes
- Lamination & infusion systems
- Primary deck covering mortars
- Decorative flooring resins
- Synthetic teak decks
- Mast chock
From racing teams to commercial fishing skippers, to commercial and leisure boatbuilders of all sizes, many make Sika's wide breadth of products for marine manufacturing and repair their first choice.
