Treatment FAQ

what happens if you recoat a deck without removing old treatment

by Ms. Ara Rau Published 2 years ago Updated 2 years ago

Remaining patches of the old sealant will prevent new sealant from being absorbed, so sand evenly to ensure a clean, bare surface. Finally, sweep or vacuum the wood thoroughly. Even a new deck will need at least a brief washing and drying to banish any dirt and grime that has accumulated during the initial 30-day drying period. istockphoto.com

Full Answer

Do you have to remove old stain before restaining a deck?

You can check whether the deck is ready to accept more stain by putting a small amount of water onto it. If the water soaks in, you are good to go. But if it beads on the top, that means that the wood fibers are saturated and unable to take more stain. In this case, you need to remove the old stain before restaining.

Can you paint over old decking?

Restore an old wood deck, even if it's worn, cracked and splintery. Simply paint it with a thick, acrylic deck restoration coating, which will create a smooth surface that lasts for years. Keeping a wood deck in good shape takes a lot of work.

Do I need a second coat of paint for my Deck?

So there you have it! Great news if your current deck paint is holding up, needing an additional coat. You only need to give it a good scuff sand first. Bad news is if your solid bodied deck paint is lifting up in many examples, it does need to be removed, stripped down. Allowing for a new deck paint coating to last much longer than before.

How long does paint restoration take to work on a deck?

Deck paint restoration coatings are thick enough to fill all cracks, knotholes, and splinters, and they provide a completely new textured surface that can last as long as 13 years without additional applications. You can do the prep work in one day, then apply the restore paint product over a two-day period the following weekend.

Do you have to remove all old stain before restaining a deck?

You do not ALWAYS have to strip off old stains when staining a previously stained deck if you are applying the same stain type, color, and brand as the old one. Since deck stains penetrate deep into the wood, they prevent moisture buildup and protect your deck from mold UV rays and rot.

Can I repaint deck without stripping?

No need to remove all deck paint without stripping, but scuff sanding is recommended before repainting, allowing new paint to grab and hold even better. So there you have it! Great news if your current deck paint is holding up, needing an additional coat. You only need to give it a good scuff sand first.

Can you paint over a previously stained deck?

A stained deck can be easily painted over or given a new shade of stain by dulling the old finish with sandpaper, wiping down the deck with de-glosser, and then priming and painting or topping with the new shade of stain.

Can a deck be stained twice?

Yes. You can apply an additional coat of stain after 24 hours if you want a darker wood color, especially if the first coat takes longer to dry.

How do you paint a deck that is already painted?

The general rule is to apply the same type of paint that's already on the deck. For example, if the old paint is oil-based, use oil-based paint. If the old paint is water-based, use water-based paint.

Should I remove old paint before repainting?

Scrape Off Old Paint I'm pretty sure they had wall painting in mind when they said it. So, in case it wasn't clear: do not paint over flaking old paint! If you have walls that are peeling paint, pick up the scraper and remove the flaking pieces, no matter how long it takes.

Why You Should Never paint a deck?

To get the most out of a wood deck it needs to be protected from the environment and harsh weather conditions. Harmful UV rays and moisture can lessen the longevity of a wood deck in no time.

Can you paint over a sealed wood deck?

Paint can be applied to water sealers, but the drying time of the sealer itself is the most important part of this task. For best results, prime the water-sealed wood first. Use either a latex-based or an oil-based primer as your first coat of paint before applying the finishing coat.

Can you paint over stained wood without sanding?

You Don't Have to Sand Before Painting Over Stain.

Does second coat of stain darken wood?

Apply a second coat of stain after the first has dried fully. This will usually produce a darker coloring, but it adds a step to the process and slows production. Substitute a glaze or gel stain for the liquid stain.

Do you need to sand between coats of stain?

No, sanding between coats of stain is only mandatory when using water-based stains. You need to sand down every raised wood grain. However, when using other types of wood stains, you only need to sand the surface before applying the first coat of stain.

Can you stain a deck over multiple days?

Ultimately you want two set aside at least two days. If you need to power wash your deck or replace any boards it may take you an extra day or two. It is ideal to stain your deck in a season that experiences mild temperatures. Extreme heat or sun can work against you when you are staining your deck.

Do I Need to Remove Old Stain Before Restaining a Deck?

You do not ALWAYS have to strip off old stains when staining a previously stained deck if you are applying the same stain type, color, and brand as the old one. Since deck stains penetrate deep into the wood, they prevent moisture buildup and protect your deck from mold UV rays and rot.

How To Know When It Is Time For Restaining Your Deck

The first step to knowing when to restain your wooden deck is to check when it starts sucking up moisture or begins to fade, look dingy, or flake.

Stripping Versus Cleaning Your Deck Before Restaining

You can strip or clean your previously stained deck before restaining. Despite the preparation method you select, they involve different procedures and levels of efficiency.

When Does My Deck Need To Be Stripped Before Re-staining?

We have mentioned that removing the entire layer of wood stain from a previously stained deck is not always necessary before you restain. And, we have given the instances where this can apply.

How To Prepare Your Deck For Restaining With The Same Color, Stain Brand, and Type

Wash and rinse the surface with pressure washer and an all-purpose deck cleaner containing a mild detergent to remove dirt particles from the deck as dust prevents proper adhesion.

Do I Need To Remove Old Stain Before Restaining a Deck- Final Verdict

So, do I need to remove the old stain before applying the new stain on a deck? Not always. You can always stain on top of another layer of stain under certain conditions. One, if you are using the same stain type, and two; the old coat is not peeling off or flaking.

What to Do Next?

Be sure not to ruin your freshly restained deck by walking on it too soon. Check out our guide on How Long Should Deck Stain Dry Before Walking On It?

What would happen if Mark had inferior deck paint?

If Mark had an inferior deck paint, not specific for decks, we would be stripping before repainting his deck , but fortunately that was not the case, saving him several hundred dollars. See this in many examples, where a person used a regular exterior house paint on a deck, not holding even weeks later.

Does deck paint need to be stripped down?

Bad news is if your solid bodied deck paint is lifting up in many examples, it does need to be removed, stripped down. Allowing for a new deck paint coating to last much longer than before. If this is too much work, contacting a local paint contractor who has a vast experience dealing with decks is a wise choice.

Do you need to remove old deck paint before repainting?

You only need to remove old deck paint that is failing, before repainting with a new coat of paint. Removing any paint that is showing signs of failure, such as cracking, peeling, bubbling, or blistering. This must be done prior to repainting, in order that a fresh new coat of paint will have something great to bond to.

How long does it take for a deck to dry?

To avoid stripping or sanding the old stain off your deck, thoroughly clean and rinse it, and then let the wood dry for 24 to 48 hours. Apply the same (or darker) stain color or tint from the same manufacturer. Otherwise, you’ll need to strip or sand the old stain out.

What is the best cleaner for decks?

For decks with mold or mildew, a mildewcide cleaner should be used. Wood that has weathered and grayed will benefit from a restorative cleaner or brightener. An all-purpose deck cleaner with a mild detergent in it to remove dirt, grease, and grime will work for most decks.

What to use after stripping wood?

A neutralizer or brightener should be applied after chemically stripping the wood to restore the pH of the wood. It is recommended to clean any surface you plan to paint, stain, or seal, and a deck is no different. For decks with mold or mildew, a mildewcide cleaner should be used.

Does staining a deck improve its look?

Conclusion. Restaining a deck not only improves its look but can add years of enjoyment to its use. Using the same kind of stain from the same manufacturer saves having to strip or sand the old stain off the boards. Hopefully, you better understand how to prepare and stain your deck, so it looks like new.

Do you have to strip old stain before reapplying?

Removing the old stain before reapplying a new coat isn’t always necessary. If you are applying the same color and brand to the wood, you shouldn’t have to strip the old stain. Using a quality deck cleaner should be all you have to do before reapplying the same stain.

Why peel old stain on deck?

Moreover, peeling the old stain on your deck will ensure that the new stain’s freshness and shine are very apparent. Here are some other benefits ...

What does it mean when water beads up on a deck?

If the water beads up (forms tiny drops) and remains there, it means there is still considerable stain-surface on the deck. In this case, you will need to strip the existing stain. However, if the water pools and starts to sink into the wood within 10 minutes, it indicates the stain has worn off considerably.

Can you restain a deck without removing the topcoat?

Let us explore some of these instances. If your deck has a topcoat seal, you typically cannot restain it. As such, there is no need to contemplate peeling off the existing finish.

Is it better to restain a deck or stain it?

The truth is, there is no outrightly wrong or right answer to this question. But, they are some agelong tips that can push you in the best direction for your deck. Naturally, it is usually better to prepare your deck surface for restaining by removing the old stain. This is so that the new stain penetrates properly and adheres to ...

Do you need to peel old stain?

If you plan to apply a dark stain over a stain with a lighter tone, there may be no need to peel the old one. This is because the newer stain will easily cover the already existing stain. If you’re mixing multiple stains to create a unique DIY blend, leaving the old blend in place may improve the resulting ‘artsyness.’.

Can you cover a deck with a stain?

As such, there is no need to contemplate peeling off the existing finish. Indeed, you can cover the deck with a coating. If you’re using a polyurethane stain blend that has a wood tone, you can simply work it over the existing stain. Indeed, these unique blends are intended for that specific purpose.

Do you have to strip old deck stain?

Finally, if you carry out an integrity test on your old deck stain and it passes, there may be no need to strip off the old stain. So you see, while stripping off old stain is decidedly crucial to the success of a new stain in some cases, it is not a set-in-stone rule. This begs the next big question ‘how do you know whether your old deck stain ...

What is deck restoration coating?

What is a Deck Restoration Coating? Deck restore paint coatings are made from a long-lasting tintable acrylic base material with UV inhibitors and added solids (aluminum oxide or sand). The solids provide texture and hold the product together (like aggregate in concrete).

How long does a deck paint restoration last?

Deck paint restoration coatings are thick enough to fill all cracks, knotholes, and splinters, and they provide a completely new textured surface that can last as long as 13 years without additional applications.

How do I paint a deck with a stir stick?

Clean the gaps as you go with a stir stick or a 5-in-1 style deck paints tool. Dunk a brush into the pail and dribble it into missed spots or depressions to build them up. Start at one end of the board and walk the brush down the entire length in one continuous motion. If you lift the brush, you’ll leave marks.

How long does it take for a primer coat to dry?

Clean up with soap and water and let the first coat dry for three to six hours (or until dry to the touch). You probably won’t like the look of the first coat. Don’t worry; it’s just the primer coat. The second coat is the “magic coat” that fills in all the gaps and provides the smooth texture you saw at the store.

Can you walk on a deck with bare feet?

If you pick a dark color and your deck gets direct sunlight, it may be too hot to walk on with bare feet. Some deck restoration products (such as Restore 10X) can be used only on horizontal surfaces, so you’ll need a matching or complementary product designed for the deck’s vertical surfaces.

Can you stain a wood deck?

Keeping a wood deck in good shape takes a lot of work. Even if you stain or seal it, the boards can still crack and splinter, making the deck look old and worn. Switching over to composite decking is one option, though the cost may be prohibitive. But there’s another, far more affordable solution.

How long does it take for a deck to dry?

After you are through, allow the deck to dry for 72 hours. As soon as it dries, sweep it off one last time.

What is a deck stain?

Deck stains are essential to your wooden structures; they offer protection and enhance the natural beauty of the wood. Transparent and semi transparent deck stains expose the wood grain giving a more natural look. What if you are looking to restain a previously stained deck?

How long does it take for a semi transparent stain to dry?

If previously you used a semi transparent deck stain in the coating of your deck, you need first to clean it thoroughly and allow it to dry in the air for four hours or more. Follow the above procedure by pouring a small amount of water on areas of high traffic of the deck as well as areas that see less traffic.

Do you need to remove old stain before restaining?

You are probably asking yourself this question, do I need to remove old stain before restaining a deck? Yes, it would be best if you stripped, remove the old stain before you restain. If the stain on the surface of your deck is old, worn out and peeling, the first thing you should do in your quest to renew the deck is to remove all the old stain.

Can you use a pressure washer to clean a deck?

In case you have no pressure washer, you can clean the surface of the deck using a top-quality deck cleaner. Even if you are going to use a deck cleaner, you will need to sweep the deck and remove any possible dust present on the surface that you intend to stain. Follow the above step by applying a layer of the deck cleaner over the surface ...

Do you need to strip old stain off of a deck?

Before you apply a new stain to your previously stained wooden deck, it is important that you strip off the old stain. It might look like a casual step, but it comes with a lot of benefits. Such benefits include: Removals of dust particles. Some strippers play a role in the killing of molds and mildew.

Can you remove old stain from a deck?

Yes, it is important to remove the layer of old stain from your deck if you are looking to restain and give it a new and fresh appearance. When you remove the old stains, you are making it easy for your formula to adhere properly to the surface of the wood, avoid easy peeling and flaking.

How long does it take to rejuvenate a deck?

A deck rejuvenation project like this can be done in two days, but it’s best to spread the work over two weekends to ensure the wood is completely dry before you apply stain.

How much stain does a 700 sq ft deck need?

This 700-sq.-ft. deck required about 5 gal. of stain — almost twice as much as the estimates indicated on the can. Explains Starling, “Old wood can get thirsty.

What kind of railing did the Johnsons use?

They chose Fiberon, a vinyl-coated wood-plastic composite. It's available in premade panels or as kits. The Johnsons liked the contrast the white railing offered.

What kind of nails did Graf use on the Johnsons deck?

For the Johnsons’ deck, Graf used galvanized ring-shanked nails when he replaced a few damaged boards. “Screws don’t pop like nails, “ he says “but we want the new boards to match the rest of the deck.”. Tip: If you need to rip replacement decking to match existing boards, use a tablesaw.

How to get rid of sun damage on wood?

For tackling tough stains, use a pressure washer (about $70 a day), which is the best way to remove sun-damaged wood fibers and tackle scrub-resistant stains. Graf recommends using a fan-type nozzle instead of a pinpoint nozzle that can dig into the wood.

Does Oxalic acid remove iron stains?

This is effective in removing iron stains and the brown-black tannins that frequently occur with cedar and redwood decks. This acid is commonly found in deck brighteners. Oxalic acid isn’t effective against mildew, so you may want to use it after cleaning the deck with a bleach-based cleaner.

Is there a secret to deck maintenance?

There's no secret to deck maintenance —repair the deck, clean it and protect it. But learning tricks the pros use can make the job go faster and the results last longer.

What to do before restaining a deck?

Repair or replace defective and rotted planks before you restain the deck. Remove all the furniture, machines, and other items on the wood’s surface before commencing the restaining task. Cover delicate items like glass windows and walls that are within the vicinity of the floor before restaining.

How long does it take for a deck to dry before staining?

To circumvent stripping or sanding off the old stain from your deck, you first need to thoroughly clean and rinse it! Then, allow the wood to dry for 24 to 48 hours. Afterward, apply the same stain, or darker stain, from the same manufacturer. It’s important that the new stain either matches the old stain or is of a darker color; otherwise, ...

Can you strip old stain before restaining?

If the old stain is deeply embedded in the wood, I’d advise you to strip or remove the old stain then restain; otherwise, the new stain will not bind well to the wood surface leading to peeling. Old stains that don’t respond well to stripping calls for sanding of the deck before restaining for a better outcome.

Does deck paint cover wood?

Deck paint, just like paint, shields the wood from excess moisture and water. Although stain does not exactly cover the wood as paint, it still forms a protective barrier between moisture, water, and lumber. Water-soaked timber is susceptible to mold and mildew growth and promotes rotting, which weakens your deck.

Can you use neutralizer on stripped wood?

Afterward, the waste is scraped off, leaving the wood exposed; it is advisable to apply a neutralizer on the stripped wood to restore its PH. It is also essential for you to clean any surface if you’re planning to restain or reseal, and a deck is no exception.

Can you seal wood decks with sealant?

Many people buy into the false notion that sealing timber with a sealant is all it takes to solve all the wood deck related problems. Well, cracking is one of the issues that sealants alone can’t prevent. Wood usually cracks and splinters due to excess heat, sunlight, and stress. Staining agents, more so oil-based, effectively prevent the above-mentioned problem as it keeps the necessary moisture trapped within the timber planks and prevents entry of unwanted moisture. This balance maintains the rigid structure of the decking.

Can you power wash a deck?

Power Washing Your Deck. Instead of cleaning your deck superficially, you can opt to deep-clean it by power washing, but you have to be cautious here. Power-washing is a highly effective way of cleaning the planks before restaining, but if done improperly, it will cause damage to your deck.

How long does it take to stain a deck?

In lieu of that, you can apply a simple stain to the deck and, after 48 hours, apply sealant for a similar level of protection. Advertisement. Photo: istockphoto.com.

How long does it take for a deck to soak up sealant?

If you’ve just put in a new deck, you’re no doubt itching to finish the job by sealing it. But preservatives in the wood often require about 30 days’ dwell time before the deck can soak up the sealant. After a 30-day period, pour some water on your deck. If it beads up, the wood is still too wet to seal, but if the water is absorbed, ...

What is the best way to protect a deck from moisture?

Photo: istockphoto.com. Sealant, stain, and paint can all be applied to a deck for different degrees of protection. Sealants are primarily used to protect against moisture damage. They contain waterproof or water repellant properties and have a thicker viscosity than stains.

How long does it take for wood to dry before sealing?

Allow to dry for 24 hours, then sand the surface with between a 60 to 150 grit sandpaper or sanding disk. Use a powered sanding tool to remove the top layer of wood, which could act as a barrier to the sealant.

Can you seal wood if it beads up?

If it beads up, the wood is still too wet to seal, but if the water is absorbed, it’s ready to seal. Be sure to apply sealant as soon as the wood is ready; leaving the deck exposed any longer increases the likelihood of both ultraviolet (UV) and moisture damage.

Can you sand a stained deck?

On a previously stained deck, also be sure to sand the entire surface—areas where the sealant has worn away as well as those that still have moisture protection intact. This moisture protection would prevent new sealant from being absorbed, so sand evenly to ensure a clean, bare surface.

Does paint protect against UV damage?

Paint, be it latex or oil-based, can protect against both UV and moisture damage, but the best deck paint generally doesn’ t hold up as long sealant or stain. Also, if there’s any lingering moisture in the wood during application, paint will be susceptible to bubbling and chipping.

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