Can you polyurethane on outdoor deck?
Do not apply polyurethane to a deck or it may jeopardize the deck’s beauty and longevity. The outdoor elements are too harsh for polyurethane making it a bad choice for exterior deck use. Keep your deck maintained with the proper choice of deck stain and it will be there for you to enjoy for many years ahead.
Should you polyurethane over stain?
Do I have to apply a clear coat after staining? While staining creates a rich, deep color that highlights natural wood grain, it does not provide long-term protection. A polyurethane top coat protects the wood from scratches, stains and water damage.
Can you seal stain with polyurethane?
Application. Polyurethane is thick and typically brushed on. Apply it in thin coats after the stain is dry.
Should you seal deck after staining?
Most of the time, stains also contain a protective sealant. It’s a good idea, though, to re-seal your deck (or check that it needs to be re-sealed) once a year. Water-based stains can adhere to water or oil-based coatings already present on the wooden surface.
Can you put Thompson Water Seal over stained wood?
And actually, the answer is YES—you can use our EMTECH water-based sealer or top coat over the oil stain. The beauty of all our water-based sealers and topcoats is that they’ll level and adhere to whatever solvent- or oil-based stain you’ve used.
Does polyurethane darken stain?
Oil-based poly has an amber tone that can dramatically change the color of stained or unstained wood. Water-based polyurethane affects the color only slightly.
Does polyurethane make wood waterproof?
Polyurethane, varnish, and lacquer are tried-and-true sealants with excellent waterproofing properties. They’re either brushed or sprayed onto clean, sanded wood and then allowed to dry completely, prior to the piece being lightly re-sanded and recoated.
Can you put a clear coat over deck stain?
Applying a clear sealer over a deck stain is never a good idea. Applying a clear sealer or polyurethane over a deck stain will cause more problems than it is worth. If you want a clear finish then you can strip off any old stain and start fresh with bare wood.