Start with a Sealer Designed for use In and Around Water
DEFY Marine Seal is specially formulated to withstand harsh marina environments. It’s ultimate protection for Concrete & Wood Piers and manufactured with the California Ozone Transport Commission Standards tough laws in mind.

Clean and stain new cedar docks as soon as possible to avoid damage from the sun and rain. Let oil-rich woods such as mahogany weather 6 months before application. Allow new pressure treated lumber which typically contains a high degree of moisture to weather for 6-12 months before staining. The wet-on color of Marine Seal has a cloudy and milky appearance but will always dry to a beautiful, semi-transparent finish.
Get your Dock Ready to Accept the Stain
Clean and stain new cedar docks as soon as possible to avoid damage from the sun and rain. Let oil-rich woods such as mahogany weather 6 months before any attempted application. Allow new pressure treated lumber, typically containing a higher degree of moisture, to weather for 6-12 months before staining.
The wet-on color of Marine Seal has a cloudy and milky appearance but will always dry to a beautiful, semi-transparent finish of your choosing.
What makes DEFY Marine Sealers Special
DEFY Marine Sealers are perfect for Clean Marina environments. The Clean Marina program exists to protect coastal waste quality by engaging in environmentally sound handling and maintenance procedures. Clean Marina is actively promoted by the National Oceanic and Atmospheric Administration.
Getting your Dock in Ship Shape
Starting with DEFY Marine Seal Wood Dock Cleaner, an environmentally friendly product that safely cleans, brightens, and restores the natural beauty of surface wood. It can safely remove dirt, grime, mildew stains, previous non-painted coatings and weathered graying from horizontal and vertical wood surfaces. Unlike chlorine bleach-based cleaners, this powdered concentrate is biodegradable and will not harm wood fibers, grass, plants or marine life. The concentrate mixes easily with water and is highly recommended for surface preparation before application or reapplication of DEFY Marine Seal Wood Dock Stain & Sealer.
Popular Dock Use Products
Concrete Pier Sealer
DEFY Marine Seal for Concrete is a silane-siloxane based water repellent With Nano Screen Technology For Water Protection of concrete surfaces. This proprietary blend of silanes and siloxanes creates a salt shield barrier on concrete surfaces promoting resistance to the weakening effects of ocean spray, deicing chemicals and salt exposure. DEFY Marine Seal Concrete Pier Sealer reacts with silica in the concrete to form a strong permanent bond beneath the surface that prevents water molecules from penetrating, while allowing water to properly evaporate (100% breathable, non-film-forming). For use on all types of marine vertical masonry or horizontal concrete surfaces such as docks, piers, bulkheads and pilings.
Wood Dock Cleaner
DEFY Marine Seal Wood Dock Cleaner is an environmentally friendly product that safely cleans, brightens, and restores the natural beauty of surface wood. It can safely remove dirt, grime, mildew stains, previous non-painted coatings and weathered graying from horizontal and vertical wood surfaces. Also an excellent cleaner for exterior vinyl, aluminum, fiberglass and concrete surfaces. Unlike chlorine bleach based cleaners, DEFY Marine Seal Wood Dock Cleaner is biodegradable and will not harm wood fibers, grass, plants or marine life. DEFY Marine Seal Wood Dock Cleaner is a powdered concentrate that mixes easily with water. It is recommended for surface preparation before application or reapplication of DEFY Marine Seal Wood Dock Stain & Sealer.
Wood Dock Stain and Sealer
DEFY Marine Seal Wood Dock Stain & Sealer is a long-lasting, semi-transparent dock stain developed for harsh marine environments. Suitable on all types of wooden docking materials it provides extreme durability against the harmful effects of both fresh and saltwater exposure. The Stain & Sealer uses nano-particle technology to provide its superior resistance against ultraviolet color fade and the growth of mold and mildew.
Let’s Apply Protection
Next an application of DEFY Marine Seal Wood Dock Stain & Sealer is going to provide a long-lasting, semi-transparent protective layer designed and developed to exist in harsh marine environments. Suitable on all types of wooden docking materials it provides extreme durability against the harmful effects of both fresh and saltwater exposure. This Stain/Sealer uses nano-particle technology to provide superior resistance against ultraviolet color fade and the growth of mold and mildew.
There’s a Solution for Concrete Dock’s too!
DEFY Marine Seal for Concrete is a silane-siloxane based water repellent With Nano Screen Technology for Water Protection of concrete surfaces. This proprietary blend of silanes and siloxanes creates a salt shield barrier on concrete surfaces promoting resistance to the weakening effects of ocean spray, deicing chemicals and salt exposure. DEFY Marine Seal Concrete Pier Sealer reacts with silica in the concrete to form a strong permanent bond beneath the surface that prevents water molecules from penetrating, while allowing water to properly evaporate (100% breathable, non-film-forming). For use on all types of marine vertical masonry or horizontal concrete surfaces such as docks, piers, bulkheads and pilings.
Final Thoughts
With decades of expertise and knowledge in the chemical industry, thorough product testing that utilities direct field, customer and consumer input, a friendly knowledgeable staff, outstanding product customer service and companywide dedication to achieving the highest possible product standards you might ask how you can go wrong with a weatherproofing solution from Marine Seal. The answer is simple is you can’t!

