Categories FAQ

Often asked: Can you power wash stain off a deck?

Pressure washing is a quick way to remove a deck finish, but it requires some care so as not to damage the deck. A pressure setting of 1500 psi should be strong enough to clean away deck stain. Hold the sprayer about 3 inches off the surface and move the sprayer as you work in the same direction as the grain.

Can you pressure wash stained wood?

Stained Wood A pressure wash pulls stain right off wood surfaces. If stripping stain from your deck is the task you are trying to accomplish, then blast away! But if you intend to keep stain on wood, don’t use a pressure washer to clean it.

How do I power wash my deck without removing stains?

Set your power washer at a low to medium setting when cleaning a deck to make sure you do not damage your wood. One of the most important things to remember is that if you use the high pressure setting for the power washer you may damage your wood and leave marks that cannot be covered up by a wood stain.

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Is it bad to power wash a deck?

Damage Caused by Power Washing Your Deck Wood decks are especially vulnerable to power washing, because the pressure exerted by the power washer can lead to splintering. It’s also a bad idea to use a power washer on a composite deck because the power washer can actually take chips out of the composite material.

Should I power wash my deck before staining?

There is a common misconception that just pressure washing a deck prior to staining is all you need to do in order to prep your deck for stain. Pressure washing can help, but if you want your stain to last, using a good deck cleaner and brightener on the deck prior to pressure washing will provide you the best result.

Is it better to sand or power wash a deck?

Splintered, cracking, or just plain rough wood should be sanded first, then pressure washed to open the wood’s pores and allow penetration of the stain. Deeply grooved wood that has mold, moss and other growing things filling the cracks will need treatment with a deck and siding cleaner.

How long can you wait to stain a deck after power washing?

After a deck has been power washed it will have some retained moisture within the wood. It’s important to let the wood dry thoroughly so none of the water that soaked into the wood gets trapped under the stain. In perfect drying conditions, 48 hours is enough for the wood to get to where it needs to be before staining.

Does old stain need to be removed from deck?

You don’t need to remove all of the old stain to apply darker stain. But you do need to remove all of the lacquer, varnish or anything that will prevent new stain from absorbing into the wood. Your sanding block will initially glide over the old lacquer before it begins to cut into it and remove it.

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How do you remove solid deck stain?

For harder to remove solid stains longer dwell times may be necessary. Once the solid stain begins to break loose from the wood surface, use a pressure washer at 1500-3000 psi to remove as much as the solid stain as possible. Reapply the stain stripper and repeat the process if stubborn areas remain. Rinse thoroughly.

Why does stain peel off my deck?

Deck stains will generally peel for two basic reasons: over application and poor adhesion. This is simple — too much stain on the surface of the wood. If there is too much stain, it restricts the moisture from evaporating away, so peeling can occur.

Can I put new stain over old stain on a deck?

Yes, it is possible to stain over the existing stain on a deck. It is recommended to do this at least once every 5-15 years, depending on how worn your deck is.

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