Got my 20 foot speedloader almost a few months ago. They used number one grade lumber. The last month and a half it’s got hot and has sat outside to dry out. The fresh wood smell has worn off and started to fade. Brand new trailer and I’m not gonna rip the floor out to do this but I’d like to seal it with something good to try and make it last. Any recommendations? My first hand has always been wrenching, welding ect not wood projects.