There is no such thing as a truly permanent deck sealer. Over time, exposure to weather, foot traffic, and other factors will gradually wear down any sealer, causing it to lose effectiveness. However, certain sealers can provide long-lasting protection and durability. The durability of a deck sealer depends on various factors, including the quality of the product, proper application, maintenance, and the specific conditions the deck is exposed to. High-quality sealers with advanced formulas and UV-resistant properties tend to offer better longevity. It's important to note that even the most durable sealers will require periodic reapplication to maintain their protective qualities. The frequency of reapplication will depend on factors such as climate, exposure to sunlight, and the amount of foot traffic the deck receives. To maximize the lifespan of your deck sealer, follow the manufacturer's recommendations for application, maintenance, and reapplication. Regular cleaning, routine inspections, and timely resealing when needed will help ensure your deck remains well-protected and visually appealing for years to come.