Interlux Paint Wood Sealer & Stains

Interlux Paint Wood Sealers & Stains: Marine-Grade Protection for Every Wood Surface

When it comes to protecting and beautifying wood aboard a vessel, few names carry as much weight as Interlux Paint. With a heritage stretching back to 1881, Interlux has spent well over a century formulating coatings engineered to endure the harshest conditions on the water. Their Wood Sealer & Stains lineup reflects that deep expertise — these are products purpose-built for the demands of the marine environment, where moisture, UV exposure, salt air, and temperature swings can rapidly degrade unprotected timber.

Key Product Lines

Interlux offers two cornerstone products in the wood sealer and stain category, each with a distinct role in any quality brightwork system.

Inter-Prime Wood Sealer is a foundational primer for bare wood surfaces. It stops varnish from soaking into the wood and seals the grain, enabling subsequent coats of varnish or paint to dry without high and low spots. It is also highly recommended for sealing plywood to resist cracking and checking — a critical consideration for marine-grade builds and repairs. Inter-Prime can be applied by brush, roller, airless spray, or conventional spray, making it versatile for both DIY boaters and professional yards.

Clear Wood Sealer is a two-part, fast-drying, grain-filling sealer engineered for performance-level work. Its rapid dry time means multiple coats can be applied in a single day, dramatically reducing turnaround time on restoration or new-build projects. The formula delivers exceptional impact, scratch, and wear resistance, and because of its grain-filling properties, it cuts down on the total number of varnish coats required to achieve a traditional, premium yacht finish. It is suitable for priming wood before both single-component varnishes and demanding two-component urethane finishes.

Interstain is Interlux's dual-purpose penetrating wood filler stain. It simultaneously fills the grain of the wood and stains it, enhancing the natural beauty of the timber while reducing the number of varnish coats needed for a finished look. Available in Red Mahogany and Brown Mahogany, Interstain features a fade-resistant, penetrating formula that is suitable for all types of interior and exterior wood surfaces above the waterline — from cabin trim and deck brightwork to mahogany planking. It can also be mixed directly into single-pack varnishes to achieve a deeper, richer tone.

Why Choose Interlux for Wood Sealing and Staining?

• Marine-grade engineering: Every formula is designed to handle saltwater exposure, UV rays, and high-moisture conditions that would compromise standard wood finishes.
• System compatibility: Interlux wood sealers are formulated to work seamlessly within the broader Interlux paint and varnish ecosystem, ensuring proper adhesion and a professional final result.
• Application flexibility: Products can be applied by brush, roller, or spray, accommodating everything from weekend DIY maintenance to professional boatyard use.
• Grain-filling efficiency: Both Clear Wood Sealer and Interstain reduce the total number of varnish topcoats needed, saving time and material.
• Proven heritage: Decades of real-world use on boats of all types — from classic wooden craft to modern yachts — back up Interlux's reputation for durability and performance.

Whether you are restoring faded brightwork, preparing bare plywood for its first finish, or building a new wood project from scratch, Interlux's wood sealers and stains provide a trusted foundation for any finish system.