Since paint blocks uv rays better than a clear finish your best bet is to apply a quality exterior primer topped by a exterior latex or oil based paint.
Best finish for wooden outdoor furniture.
They can be bought from amazon.
Furniture patio set image.
Types of film forming finishes.
An exterior oil finish is definitely the simplest quickest way to treat an outdoor project.
Shai aharony it is always satisfying to have an outdoor space where you.
For a natural wood look apply multiple coats of exterior spar varnish that contains added uv blockers.
If he insists on applying a finish maybe for looks or to make the surface smoother a boat varnish from a marina would be best because it would hold up better against the sun s uv light.
Wood or metal outdoor furniture requires a protective finish to prevent damage from moisture and ultraviolet light or uv.
The best finishes effectively perform this function and last a long time.
For a natural look penetrating oil finishes might be your best bet.
Though boat owners might be willing to put up with the heavy maintenance as well as the high prices for quality formulations we don t recommend varnishes for most outdoor woodworking projects.
Types of wood penetrating finishes.
Epoxy with exterior varnish.
Best finishes for outdoors.
Common brands include interlux epifanes pettit and z spar.