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Woodrich HD-80 Heavy Duty Wood Stripper (10 lb)

Original price was: $99.00.Current price is: $89.00.

Description

Product Overview

Our Woodrich Brand 10 lb HD-80 Heavy Duty Wood Stripper covers up to 3,000 square feet of wood. HD-80 is a powder concentrate formulated to remove stubborn, built-up wood finishes that milder cleaners can’t touch. It handles solid-color stains, semi-transparent stains, sealers, polyurethane, varnish, and paint on decks, fences, wood siding, and log cabins. HD-80 is low VOC, water-based, biodegradable, and free from Methylene Chloride.

Product Includes

  • 1 x 10 lb Pail Woodrich Brand HD-80 Heavy Duty Wood Stripper

When Cleaning Isn’t Enough

If your deck, fence, or siding has layers of old stain, peeling sealer, or a solid-color finish that’s cracking and flaking, a cleaner won’t fix it. You need to strip the existing finish down to bare wood before you can apply a new coat of stain that will actually absorb and last. That’s what HD-80 is for.

HD-80 Heavy Duty Wood Stripper from Woodrich Brand is a powder concentrate formulated to remove stubborn, built-up wood finishes that milder cleaners can’t touch. One 10 lb container covers up to 3,000 square feet of wood surface.

What HD-80 Removes

HD-80 has been tested against and is effective on finishes from Sikkens, Behr, Cabot, Penofin, TWP, CWF, Ready Seal, Wolman, Olympic, Cuprinol, ABR, and Flood. If your deck has one or more layers of failed finish from a big-box retailer or a professional-grade brand, HD-80 is designed to take it off.

This is the heavy-duty option. For lighter jobs where the wood just needs cleaning or has a worn oil-based stain that’s mostly faded, Woodrich Brand’s EFC-38 Wood Cleaner & Mild Stripper is the better starting point. HD-80 is for when a finish has genuinely failed and needs to come off entirely before restaining.

How It Works

HD-80 is a dry powder concentrate. You mix it with water at a ratio of 8 oz (½ lb) per gallon for full strength, apply it heavily to the wood, and let it dwell for 15 to 30 minutes. The product softens the existing finish to a near-liquid consistency so it can be pressure washed off. Work in 200 to 300 square foot sections to keep the solution wet while it works. HD-80 is only active when wet. If it starts to dry before the finish has softened, mist the surface with water or apply more solution.

The coverage rate is approximately 150 square feet per gallon of mixed solution under normal conditions. Heavier coatings, multiple layers, direct sun, and wind can reduce that rate because you’ll need to reapply to keep the surface wet longer. A scratch test on a small area before starting the full job will help you estimate dwell time and how much product you’ll actually need.

After stripping, the wood must be brightened and neutralized with Citralic Wood Brightener & Neutralizer before staining. Stripping raises the wood’s pH and can darken tannins. Citralic brings the pH back to neutral and restores the wood’s natural tone. Skipping this step will affect how your new stain penetrates and cures. If you need both products, the HD-80 + Citralic Stripping Kit (3,000 sq ft) bundles them together at about 10% savings.

Safe for All Wood Species, All Exterior Surfaces

HD-80 works on pressure-treated pine, cedar, redwood, cypress, exotic hardwoods, and all other wood species. Use it on decks, fences, wood siding, log cabins, pergolas, docks, and outdoor furniture. It also works on concrete, vinyl siding, and brick.

Environmental and Safety Details

HD-80 is low VOC, water-based, biodegradable, and free from Methylene Chloride. That said, this is a heavy-duty stripping product. Wear gloves, safety glasses, and long sleeves during use. Cover or thoroughly wet nearby plants and landscaping before and after application. Always test a small inconspicuous area first to verify dwell time and results for your specific finish.

Shelf Life and Storage

HD-80 is stable in solution and has a long shelf life. If you mix more than you need, you can store the leftover solution for future use. Keep the dry powder in a cool, dry place with the container tightly closed.

Smaller Project?

For projects up to 750 square feet, the HD-80 2 lb jar uses the same formula in a smaller size. Not sure which size or product you need? Text a photo of your project to the Woodrich Brand Project Support Hotline at (636) 288-8512 and get a personalized recommendation. You can also order a Wood Cleaner, Stripper & Brightener Sample Kit for $10 to test HD-80 on a small section before committing to the full size.

Specs at a Glance

Spec Detail
Size 10 lb pail
Format Powder concentrate (mix with water)
Mix ratio 8 oz (½ lb) per gallon of water at full strength
Coverage Up to 3,000 sq ft (approx. 150 sq ft per gallon of mixed solution)
Dwell time 15 to 30 minutes, depending on finish type and conditions
Works on Solid stains, semi-transparent stains, sealers, polyurethane, varnish, paint
Safe for All wood species, all exterior wood surfaces, concrete, vinyl siding, brick
Environmental Low VOC, water-based, biodegradable, Methylene Chloride-free
Required follow-up Citralic Brightener & Neutralizer before staining
Shipping Free on all orders

Get Help With Your Project

Woodrich Brand’s Project Support Hotline is staffed by seasoned wood restoration professionals with decades of hands-on experience. Call or text (636) 288-8512 for help with product selection, quantity estimates, application technique, or troubleshooting. You can also email support@woodrichbrand.com.

  • You can apply the brightener right away after cleaning.  If there are puddles of water, try to broom those off before applying the brightener.  There is no maximum amount of time you can wait, as long as you apply the brightener at some point before you stain.  
  • Yes, you can usually wait up to about three weeks before the sun will start causing the wood to lost its natural color.
  • Short Answer:  150 square feet HD-80 should be applied heavily at a rate of about 150 square feet per gallon.  The stripper is designed to soften existing stain and sealers to a near liquid consistency.  The amount of time this process takes depends on many factors.  The type/brand of finish being removed, the number of "coats" or applications, the amount of direct sunlight the wood receives and the amount of time since the last application all play a major role. HD-80 stripper is only active when it is wet.  If the stripper begins to dry before the existing finish has softened enough, more stripper should be sprayed on to keep it wet.  This will reduce your effective spread rate. A high quality oil based exterior stain should be reasonably easy to strip.  The "dwell time" or the amount of time the stripper needs to soften it thoroughly is usually about 15 min or less when the temp is about 70 degrees.  Under these conditions you can count on that 150 square foot per gallon estimate. If you are stripping several layers of a cheap water based, or worse a water reducible alkyd based product the dwell time is going to be much longer.  Film forming products that crack and peel are often the most difficult to remove.  Sometimes you have to keep the surface wet for up to an hour to completely soften all the layers to the point they can be gently power washed off. If you are doing this work in the direct sun, on a breezy day you are going to have to apply the HD-80 several times in order to keep it wet that entire time.  Each time you soak the surface your spread rate is going to be roughly 15o square feet per gallon, however your effective rate for the project might be half that or less. This is the main reason professional contractors will almost always perform a scratch test to determine how long its going to take to strip the surface and better estimate how much stripper they will need to complete the job.  For the DIY community we offer sample test kits so you can determine how easy your wood will be to restore.  
  • We recommend using either the EFC-38 cleaner and mild stripper to remove outdoor wood furniture stain. Use also the HD-80 heavy-duty wood stripper. Then you would follow with the Citralic wood brightener and neutralizer.
  • It is okay if the wood is damp (with no puddles) or dry when applying EFC-38.  The cleaner could become diluted if the wood has a lot of puddles.  Wood that is in the direct sun can become hot to the touch.  It is okay to mist the wood with a little water to cool it off before applying the EFC-38.  This will help the cleaner stay wet and active longer.
  • HD-80 and EFC-38 are both very effective cleaners for concrete and hard surfaces. Of course you want to follow all of the same safety precautions as when they are used for wood restoration. Citralic Brightener/Neutralizer will effectively remove rust and other mineral stains from concrete. For severe concrete stains, you can wet the area and then grind in some of the dry Citralic powder making a thin paste.  Allow that paste to dry on the surface and then rinse away.  Repeat as necessary.
  • It is easiest to use a pressure washer after the HD-80 has softened the existing finish. For larger jobs, it is a good idea to test the HD-80 first to be sure that it is going to effectively remove your finish. There are sample kits available for testing.

  • Yes. You neutralize with Woodrich Brand Citralic Brightener / Neutralizer before applying the new stain.

  • HD-80 is a heavy-duty wood stripper. It is effective at removing most semi-transparent deck stains and sealers. HD-80 is a caustic material. So care should be taken to protect surrounding vegetation such as grass and plants. We also recommend the use of protective clothing to protect the skin and eyes. Woodrich-Brand also manufactures EFC-38 which is a mild stripper that will effectively remove most oil-based semi-transparent deck stains and sealers. If you are not sure which product is best suited for your project, you can order a product sample kit. Then test them each to see which you prefer. You can also contact the Woodrich-Brand project support hotline at 636-288-8512 if you have questions before you order. 

  • I believe that you would get better results with a paint stripper. This product works best for removing wood stains and sealers.