Interlux Paint Primers & Sealers

Interlux Paint Primers & Sealers: The Foundation of a Professional Marine Finish

When it comes to protecting a boat's hull from the relentless assault of saltwater, galvanic corrosion, and moisture absorption, the primer layer is everything. Interlux Paint has spent more than a century engineering marine coatings that professionals and serious boat owners trust — and their line of primers and sealers sits at the very core of that expertise. Founded in 1881, Interlux is now a division of AkzoNobel , and that legacy of science-backed formulation is evident in every primer product they produce.

Why Primer Selection Matters on the Water

Using the correct primer is critical — a two-part primer designed for use below the waterline is recommended for all boats to ensure proper adhesion and protection against corrosion. Unlike standard residential primers, marine primers must endure constant immersion, temperature swings, biofouling pressure, and the electrochemical stress of dissimilar metals. Interlux has purpose-built solutions to address every one of these challenges.

Key Interlux Primer & Sealer Product Lines

• Primocon Underwater Metal Primer: Primocon is an anti-corrosive primer for underwater metal surfaces — including hulls, running gear, and the lower units of outboards and I/Os — and provides an excellent barrier to reduce pitting from galvanic corrosion.
• InterProtect (Two-Part Epoxy Barrier Coat): InterProtect can be used both above and below the waterline and is an excellent defense against corrosion, while meeting the most restrictive VOC regulations. The high-solids InterProtect HS variant is a versatile two-part epoxy that functions as both a primer and a barrier coat.
• Pre-Kote Topside Primer: Pre-Kote is a primer that prepares surfaces for topcoat application, ensuring maximum adhesion and a long-lasting finish. It is the go-to choice when prepping fiberglass or previously painted topsides before a new topcoat.
• Interprotect 2000E with Microplates®: Interprotect 2000E with Microplates is a unique two-part epoxy coating developed to protect fiberglass hulls from water absorption. The Microplates technology creates an overlapping platelet structure within the film, delivering exceptional moisture resistance.
• Fiberglass Surface Prep & Solvent Wash 202: Before any primer goes down, the substrate must be clean. Interlux Fiberglass Solvent Wash 202 removes mold release agents, wax, oil, and grease from hulls of bare fiberglass boats — an essential first step in any proper primer system.

Built on Science, Proven on the Water

Scientific expertise is the foundation of Interlux's business; no competitor dedicates more resources to ongoing research and development, and Interlux paint is developed in dedicated yacht labs and proven to stand up to real-world conditions on the water. Whether you're re-priming a trailered bass boat or laying down a multi-coat barrier system on a bluewater cruiser, Interlux primers are engineered to be the first and most important line of defense. Explore the full Interlux Paint brand page for the complete range of coatings, or browse all marine primers and sealers to compare options across brands.