Excerpt: When we decided to test the Seal-Once Marine Premium Wood Sealer against the Trend clear sealant, we weren’t sure what to expect. The 1-gallon container of Seal-Once promised versatility as both a stain and sealer, and the clear finish seemed ideal for preserving the natural beauty of our outdoor furniture. Upon application, we found the product lived up to its claims—our wood felt thoroughly protected against water and wear while maintaining its original hue. Unlike Trend, which required multiple coats, Seal-Once delivered a single, durable layer that resisted fading. The only downside? The spreadable consistency made it slightly trickier for us beginners to apply evenly. Still, the results were surprisingly impressive, leaving us convinced that Seal-Once might just outshine its competitors in our next refinishing project.