Gtechniq Marine Synthetic Deck Sealant - 5L

The Gtechniq Marine Synthetic Deck Sealant - 5L is a professional-size marine surface-care product developed to protect synthetic decking from stains, UV exposure, water, and everyday wear. Rather than treating boat care as a generic automotive task, the formula is designed around the materials and environmental exposure common to marine surfaces, helping owners and detailers maintain appearance while reducing avoidable wear.

Its main advantage is the ability to create a waterproof barrier while preserving surface feel. The formula also gives maintain non-slip deck characteristics, so it is useful as part of a broader Gtechniq marine detailing system where cleaning, correction, preparation, and protection are handled in the proper sequence for the surface being treated.

Best results depend on proper surface preparation and application technique, including cleaning and complete drying before saturation. The product should be used according to the manufacturer’s instructions, with particular attention to surface compatibility, temperature, drying, dwell time, and residue removal so the treatment performs as intended.

• The formula is built to protect synthetic decking from stains, UV exposure, water, and everyday wear.
• It is formulated to create a waterproof barrier while preserving surface feel.
• The product also gives maintain non-slip deck characteristics.
• It can be used alongside compatible Gtechniq cleaners, polishes, preparation products, and coatings.
• Following the recommended process, including cleaning and complete drying before saturation, helps the product work as intended.

Worth comparing against our other waxes, sealants & coatings.