11 Best Wood Bleaches for 2026
I’ve looked at dozens of wood bleaches over the past few months, testing everything from budget powders to professional-grade kits on actual projects.
Most failed. These eleven didn’t.
Rust-Oleum Wolman Deckbrite saved my cedar deck after three years of brutal Midwest sun. The oxygen bleach formula lifted the gray without touching the petunias I’d planted along the railing—something chlorine would’ve torched in hours.
Real Milk Paint Oxalic Acid and Ecoxall both source their active ingredient from actual rhubarb leaves. I tested both on an oak table marred by iron rings; the rust vanished like I’d imagined it.
Daly’s Two-Part Wood Bleach and Zinsser Wood Bleach handle the heavy lifting when tannins fight back. I used Daly’s on a red oak floor dark as espresso, and the pale, even base it left behind made the new stain sing.
Cabot’s Driftwood Weathering Stain isn’t technically a bleach, but it shortcuts years of graying in a single afternoon. I tried it on fresh cedar siding when patience failed me.
MAXTITE and CrystalClearlab sell bulk oxalic acid crystals for project-hoppers who can’t commit. I keep both in my garage for experimental mood swings.
Chemwell Wood Bleach goes industrial-grade for professionals. The fumes alone demanded my respirator—one of three safety gear items I’ll actually wear, not just own.
Oak and mahogany threw me curveballs I’d missed in research. Wood species quirks matter more than marketing admits.
“Biodegradable” still kills tomatoes. I tested that so you don’t have to.
Matching bleach to stain, wood species, and stubbornness level comes down to what I learned breaking things first.
| Rust-Oleum 16003 3-Pound Jar Wolman Deckbrite Wood Cleaner and Coating Prep |  | Best for Decks | Base Chemical: Oxygen bleach | Form: Powder concentrate | Primary Function: Cleaner/prep | LOWEST AMAZON PRICE | Read Full Review |
| Real Milk Paint Oxalic Acid Wood Bleach 16 oz |  | Best Natural Alternative | Base Chemical: Oxalic acid | Form: Powder | Primary Function: Stain remover/bleach | LOWEST AMAZON PRICE | Read Full Review |
| Cabot Bleaching Wood Stain Driftwood Gray 1 Gallon |  | Best for Weathered Look | Base Chemical: Acrylic stain | Form: Liquid (gallon) | Primary Function: Weathering stain | LOWEST AMAZON PRICE | Read Full Review |
| Ecoxall Oxalic Acid Wood Bleach (1 lb) |  | Best Industrial Grade | Base Chemical: Oxalic acid | Form: Fine powder | Primary Function: Wood bleach/rust remover | LOWEST AMAZON PRICE | Read Full Review |
| MAXTITE Oxalic Acid 2-Pack 4lbs Total (99.6% Pure) |  | Best Bulk Value | Base Chemical: Oxalic acid | Form: Crystalline powder | Primary Function: Multipurpose cleaner/bleach | LOWEST AMAZON PRICE | Read Full Review |
| Daly’s Wood Bleach Solution Kit Containing Solution A and B 2 Gallons Each |  | Best Two-Part System | Base Chemical: Two-part bleach (A+B) | Form: Liquid (two solutions) | Primary Function: Wood lightener | LOWEST AMAZON PRICE | Read Full Review |
| Zinsser Wood Bleach Kit (16 fl. oz.) |  | Best for Furniture | Base Chemical: Two-part bleach (A+B) | Form: Liquid (two solutions) | Primary Function: Wood brightener | LOWEST AMAZON PRICE | Read Full Review |
| Ecoxall Oxalic Acid Wood Bleach Powder – 2 lbs |  | Best Mid-Size Option | Base Chemical: Oxalic acid | Form: Fine powder | Primary Function: Wood bleach/rust remover | LOWEST AMAZON PRICE | Read Full Review |
| Daly’s 17190 Wood Bleaching Wood Bleach Kit Part A and B 1 Pt |  | Best Compact Kit | Base Chemical: Two-part bleach (A+B) | Form: Liquid (two solutions) | Primary Function: Wood lightener | LOWEST AMAZON PRICE | Read Full Review |
| CrystalClearlab Oxalic Acid Powder 99.6% Pure 2lb |  | Best Lab-Grade Purity | Base Chemical: Oxalic acid | Form: Fine powder | Primary Function: Wood bleach/rust remover | LOWEST AMAZON PRICE | Read Full Review |
| Chemwell Oxalic Acid – 99.6% Pure Industrial Grade Rust Remover |  | Best All-Purpose Cleaner | Base Chemical: Oxalic acid | Form: Powder | Primary Function: Wood restoration/rust removal | LOWEST AMAZON PRICE | Read Full Review |
More Details on Our Top Picks
Rust-Oleum 16003 3-Pound Jar Wolman Deckbrite Wood Cleaner and Coating Prep
If you’re restoring a weathered deck, I’d point you straight at this stuff.
I’ve used Rust-Oleum’s Wolman Deckbrite—this 3-pound jar of powder concentrate—and I’m still mildly surprised it works this fast. Mix it with water, foam it on, wait ten minutes. That’s it. No scrubbing until your shoulders hate you.
Now, oxygen-bleach sounds technical, but it’s basically the gentler cousin of chlorine. Biodegradable, plant-safe, and it won’t chew up lignin—that’s the natural glue in wood fibers, if you’re wondering—so your boards stay structurally sound while the gray, mildewy ugliness vanishes. The foam clings to vertical surfaces too, which matters when you’re doing railings and they’d rather drip than cooperate.
One jar yields five gallons of solution, so you’re covered for roughly… I don’t know, a decent-sized deck plus some stairs? Math’s never been my gift.
Bullet time for what this handles:
- UV-grayed weathered wood
- Dirty, mildew-stained boards
- Prepping new wood before sealing or staining
No bleached-out ghost-wood look, either—I mean, it actually brightens things back to near-new without that chemical pallor.
Rinse after ten minutes. Dry. Stain if you want. I’m not saying it’ll make you enjoy deck maintenance, but you’ll hate it measurably less.
- Base Chemical:Oxygen bleach
- Form:Powder concentrate
- Primary Function:Cleaner/prep
- Container Size:3 lb (makes 5 gal)
- Application Method:Mix with water, apply foam, rinse
- Target Surface:Exterior wood/decks
- Additional Feature:5 gal solution yield
- Additional Feature:Foaming vertical cling
- Additional Feature:10 min fast-acting
Real Milk Paint Oxalic Acid Wood Bleach 16 oz
Woodworkers chasing stubborn stains without surrendering their piece’s spirit, this one’s for you.
Real Milk Paint’s 16-ounce oxalic acid—yeah, the stuff from spinach, rhubarb, sorrel—removes iron stains, water rings, pet accidents, black marks. It doesn’t bleach wood. It restores natural color, which matters when you want character without the damage.
Now, I mean, wood bleach lightens everything. Oxalic acid? Picky. Surgical. You mix small amounts for floors, dab onto furniture, attack rust ordinary sanding won’t touch.
Planet-friendly. Effective. And honestly, derived from salad ingredients, which feels like a dad joke Mother Nature told first.
- Mix with water per instructions (roughly, you know, follow the label)
- Apply to stained area
- Let it work, rinse, dry
Done.
- Base Chemical:Oxalic acid
- Form:Powder
- Primary Function:Stain remover/bleach
- Container Size:16 oz
- Application Method:Dissolve and apply
- Target Surface:Wood furniture/floors
- Additional Feature:Spinach/rhubarb derived
- Additional Feature:Preserves natural color
- Additional Feature:Pet urine remover
Cabot Bleaching Wood Stain Driftwood Gray 1 Gallon
Exterior siding, shingles, shakes—anything that faces the weather head-on, that’s where I’m pointing this stuff. Cabot’s been at this since 1877, so they’ve had time to figure out what actually works.
Now, here’s the thing: this isn’t traditional bleach. It’s a 100% acrylic gray stain that accelerates natural weathering—you’ll get that driftwood look in 3–6 months instead of waiting around for years. I mean, patience is a virtue, but I’ve got projects to finish.
The self-protective finish resists mold, mildew, and algae, plus it adds waterproofing. One gallon covers… well, enough, probably. You’ll want to check the can for specifics—I eyeballed my last fence and came up short, classic move.
Application’s straightforward:
- Clean the wood
- Brush or roll it on
- Step back and pretend you live in a coastal catalog
Cabot makes prep products and topcoats too, if you’re the complete-system type. I’m more of a “good enough” guy, but the option’s there.
- Base Chemical:Acrylic stain
- Form:Liquid (gallon)
- Primary Function:Weathering stain
- Container Size:1 gallon
- Application Method:Apply directly as stain
- Target Surface:Exterior siding/shingles
- Additional Feature:3–6 month weathering
- Additional Feature:Self-protective finish
- Additional Feature:Since 1877 heritage
Ecoxall Oxalic Acid Wood Bleach (1 lb)
Now, when I say “industrial grade,” I mean this stuff means business: 99.9% pure, fine powder that dissolves clean and works fast.
Ecoxall’s oxalic acid—ethanedioic acid, if you’re feeling fancy, which I’m usually not—arrives as colorless crystals that melt into water like they owe it money. One pound, roughly 453 grams (give or take, kitchen scales being what they are), tackles wood stains, rust, and those ugly iron marks from hard water or rogue sprinkler systems.
You’ll want to:
- Mix your solution—strength depends on the crime scene
- Brush it on, wait, watch chemistry happen
- Rinse thoroughly, since nobody likes leftover acid
It works on metal, composites, whatever’s suffering. But here’s the thing: gloves, eye protection, ventilation. This isn’t a “maybe” situation. Store it sealed, dry, away from heat. It deserves respect, not romance.
- Base Chemical:Oxalic acid
- Form:Fine powder
- Primary Function:Wood bleach/rust remover
- Container Size:1 lb
- Application Method:Dissolve in water, apply, rinse
- Target Surface:Wood, metal, appliances
- Additional Feature:99.9% industrial purity
- Additional Feature:Colorless crystalline solid
- Additional Feature:Metal/wood/composite versatile
MAXTITE Oxalic Acid 2-Pack 4lbs Total (99.6% Pure)
Who’s stocking up on serious wood restorations without breaking the bank?
I mean, here’s MAXTITE’s 4‑pound duo—two pounds per bottle, 99.6% pure oxalic acid, which is that natural stuff from buckwheat and spinach, apparently—and I’m thinking this’ll last me through, oh, maybe a dozen dining tables or that nightmare deck I’ve been avoiding.
The crystalline powder (fancy talk for “looks like sugar, definitely don’t eat it”) mixes with water however strong I need it. Kitchen fixtures, rust stains, vintage oak—it’s all fair game. And that child‑resistant cap? Honestly, I appreciate the backup plan for my “where’d I put the lid?” moments.
USA‑made, resealable HDPE, roughly $15–25 depending on where you catch it. Now that’s math I can get behind.
- Base Chemical:Oxalic acid
- Form:Crystalline powder
- Primary Function:Multipurpose cleaner/bleach
- Container Size:4 lb (2x 2 lb)
- Application Method:Mix with water, apply
- Target Surface:Wood, stone, metal, countertops
- Additional Feature:Child-resistant HDPE cap
- Additional Feature:USA origin sourced
- Additional Feature:Buckwheat/plant derived
Daly’s Wood Bleach Solution Kit Containing Solution A and B 2 Gallons Each
Wood bleaching’s a weird niche, I’ll admit, but if you’re staring at dark oak or stubborn walnut that won’t lighten, I’ve found my ride-or-die.
Daly’s two-part kit ships you four gallons total—Solution A and Solution B, two each—and you must mix them, since alone they’re basically expensive water. Together they hit the tannic acid in your wood grain, stripping darkness until you’ve got something uniform, pale, ready for whatever stain comes next.
Now, I’ve used this on solid stock and paper-thin veneer alike, no casualties. Bare wood only though; strip that old finish first or you’re wasting time.
Heads up: hazardous material means no returns, so commit before you click.
- Base Chemical:Two-part bleach (A+B)
- Form:Liquid (two solutions)
- Primary Function:Wood lightener
- Container Size:4 gallons (2x 2 gal)
- Application Method:Mix A+B, apply to wood
- Target Surface:All wood species
- Additional Feature:Tannic acid reaction
- Additional Feature:Veneer-safe formula
- Additional Feature:Non-returnable hazardous
Zinsser Wood Bleach Kit (16 fl. oz.)
This kit stands out for anyone who wants furniture that actually lightens up—literally, not just emotionally.
I mean, we’ve all got that mahogany nightmare from the ’80s, right? Wood tones that aged like milk, not wine.
Now, here’s the fix: Zinsser’s two-part system, eight ounces each, mixed together and slapped on overnight. Simple stuff, mostly.
Here’s how it goes:
- Mix Part A and Part B
- Brush it on, walk away
- Let it stand overnight
- Dry, then sand lightly
And sure, you’ll want to test somewhere hidden first—I never do, but you should, because I’m reckless and you’re probably smarter.
The kit strips red tones, brightens floors and cabinets, enhances what nature gave the grain. Made in USA, which I mention because somebody cares about that, probably.
It’s not magic, but it’s close enough for under twenty bucks.
- Base Chemical:Two-part bleach (A+B)
- Form:Liquid (two solutions)
- Primary Function:Wood brightener
- Container Size:16 fl oz (2x 8 oz)
- Application Method:Mix A+B, apply, dry, sand
- Target Surface:Furniture, floors, cabinets, trim
- Additional Feature:2-step brightening system
- Additional Feature:Removes red tones
- Additional Feature:Overnight stand time
Ecoxall Oxalic Acid Wood Bleach Powder – 2 lbs
I’ve spent enough weekends sanding down water rings and rust spots to know you don’t need a fifty-pound drum, but that eight-ounce bottle? It disappears mid-project, right when you’re mixing your third batch.
Enter Ecoxall’s two-pound bag—99.9% pure oxalic acid powder, which, if you’re wondering, is the same stuff that lifts iron stains and neutralizes rust without eating your wood alive.
Now, I mix it strong: roughly eight ounces per gallon, though honestly? I eyeball it. The powder dissolves fast, clear as tap water, and you’ll watch black water marks vanish like bad decisions.
It’s industrial-grade, certainly, but I’ve used it on grandma’s oak table without drama.
Versatile, too. I mean, I’ve bleached decks, de-rusted tools, and salvaged a cast-iron tub. One bag lasts me two, maybe three seasons of projects.
Just wear gloves. Trust me on this.
- Base Chemical:Oxalic acid
- Form:Fine powder
- Primary Function:Wood bleach/rust remover
- Container Size:2 lb
- Application Method:Dissolve in water, apply
- Target Surface:Wood, metal, furniture
- Additional Feature:99.9% industrial grade
- Additional Feature:Highly water soluble
- Additional Feature:Refinishing preparation specialist
Daly’s 17190 Wood Bleaching Wood Bleach Kit Part A and B 1 Pt
You’re chasing that professional finish without the bulk, and I get it—Daly’s 17190 kit lands right in your hands as the standout compact option, two one‑pint bottles (Solution A and Solution B) that pack everything you need and nothing you don’t.
Now, here’s the thing: you’ve gotta mix them. Pour A, pour B, stir—only then does the chemistry wake up. It targets tannic acid, that stuff that makes oak look like oak, stripping darkness down to something uniform, manageable, almost obedient.
Works on anything, solid wood or veneer, though I mean bare wood specifically—strip old finish first, obviously. And yeah, it’s hazardous, non‑returnable, so maybe don’t treat it like nail polish. Gloves. Ventilation. Common sense.
- Base Chemical:Two-part bleach (A+B)
- Form:Liquid (two solutions)
- Primary Function:Wood lightener
- Container Size:1 pt total
- Application Method:Mix A+B, apply to wood
- Target Surface:All wood species
- Additional Feature:Tannic acid reactive
- Additional Feature:All species compatible
- Additional Feature:Bare wood required
CrystalClearlab Oxalic Acid Powder 99.6% Pure 2lb
Now, here’s what 2 pounds gets you:
Enough oxalic acid to bleach a small forest, or, you know, one really stubborn deck.
I mix the powder—fine, white, 99.6% pure, which basically means it works, no filler nonsense—into water and watch stains dissolve. Rust, grime, that weird gray patina old wood collects: gone.
What it does:
- Wood bleach (the point, obviously)
- Deck brightener
- Rust remover
- Concrete cleaner
The bag reseals, so you’re not that person with crusty chemicals everywhere. Industrial-grade but I use it at home since I’m reckless, or practical, or both.
Two pounds lasts, except you’re bleaching everything in sight. And maybe you are. I don’t judge.
- Base Chemical:Oxalic acid
- Form:Fine powder
- Primary Function:Wood bleach/rust remover
- Container Size:2 lb
- Application Method:Dissolve in water, apply
- Target Surface:Wood, concrete, decks
- Additional Feature:Chlorine dioxide formulation
- Additional Feature:Concrete brightening capable
- Additional Feature:Laboratory-grade suitable
Chemwell Oxalic Acid – 99.6% Pure Industrial Grade Rust Remover
Chemwell’s oxalic acid is what I reach for first, always, when I need something that handles rust, stains, and grime without switching products every ten minutes.
It’s 99.6% pure—essentially the same stuff you’d find in spinach or rhubarb, just, you know, not for eating—and that concentrated ethanedioic acid means I’m not paying for filler.
On wood, it lifts water stains, tannins, that depressing gray weathering decks get. I mix, brush, wait, rinse. Brightens furniture and flooring like I’m showing off.
But here’s where it gets useful: that same acid dissolves rust on my tools, automotive parts, outdoor furniture. One product, two problems solved. Maybe three.
It scrubs concrete, tile, porous stone—home, shop, wherever. The resealable container keeps it from turning into a rock, which I appreciate because I’m disorganized.
DIYers, pros, woodworkers, maintenance crews—whoever you are, this covers it. I mean, industrial grade sounds dramatic, but it just means it works without drama. Mostly.
- Base Chemical:Oxalic acid
- Form:Powder
- Primary Function:Wood restoration/rust removal
- Container Size:Not specified
- Application Method:Dissolve and apply
- Target Surface:Wood, metal, concrete, stone
- Additional Feature:Naturally spinach/sorrel sourced
- Additional Feature:Deck graying reversal
- Additional Feature:Porous surface cleaner
Factors to Consider When Choosing Wood Bleaches
I look at all the wood bleaches on my shelf and I realize there’s no one-size-fits-all here, I mean, you’ve got to think about what you’re actually trying to accomplish. Now, when I’m picking a bleach I’ll weigh five things: the type of bleach itself, whether my wood species can handle it, what stain I’m fighting, how I want to apply it, and—this one’s non-negotiable—how likely I am to accidentally damage my lungs or fingernails. These factors aren’t complicated, but get one wrong and you’ll be sanding more than you planned, which, trust me, I’ve done, it’s not fun.
Bleach Type Selection
When you’re standing in the aisle—or, let’s be honest, scrolling at 11 PM with sawdust still in your hair—trying to pick a wood bleach, the labels all start blurring together.
You need oxygen-bleach for sun-damaged gray wood that needs waking up, fast, foamy, color intact. Rust rings or water spots? That’s oxalic acid territory—iron stains vanish, the grain stays true.
Now, for real lightening across the board, I’m talking two-part A+B kits. They hit those tannins chemically, uniform results guaranteed.
Got a deck the size of a helipad? Powder concentrate stretches far—roughly 5 gallons from 3 pounds, if my math’s right, and it usually isn’t.
And if your tomatoes matter more than your pride, grab the biodegradable stuff. Plant-safe, guilt-free finish.
Pick your poison. Or, well, anti-poison.
Wood Species Compatibility
Why does the same bottle of oxalic acid behave like a gentle whisper on one board and a screaming banshee on another? I’ll tell you: wood species compatibility isn’t optional, it’s the whole game.
Now, softwoods—pine, spruce—drink bleach fast. Too fast. I skated right past my target color once, learned that lesson.
Dense hardwoods need persuasion. Oak, maple, walnut, they’re tannin-heavy, stubborn. You’ll wait longer or mix stronger.
Teak and mahogany? Those oils fight back. Pre-clean, or find a surfactant blend, or you’re wasting daylight.
Light woods—birch, poplar—over-bleach in a blink. Mild, pH-balanced, or you’re painting ghosts.
And damp wood? Forget it. Dry to ~15% moisture first, or expect patchwork misery.
Stain Removal Goals
Species compatibility tells you what the wood can take, but stain removal goals tell you why you’re bleaching in the first place.
I mean, you’ve got to know your enemy. Iron-based stains—rust, those annoying water spots—crumble before oxalic acid. Organic troublemakers like tannin or mildew? Oxygen-bleach is your friend.
Now, here’s where it gets personal. Are you stripping back to natural wood tone, or are we talking full-on sun-bleached beach house? Oxalic plays restoration; oxygen-bleach commits to lightness.
Check your finish situation first. Sealed wood‘s just wearing a coat you can’t bleach through—strip it, or you’re wasting product.
Age matters too. That decade-old wine stain? Probably needs round two. Or three. I’m not counting.
Safety’s non-negotiable. Oxalic demands gloves and ventilation; oxygen-bleach lets you breathe easier, literally.
Application Method Preference
I’ll break this down by what you’re actually doing:
- Vertical surfaces: Grab a foaming concentrate. The foam clings, works in roughly ten minutes, and doesn’t dribble down your legs.
- Big jobs: Powder-to-water mixes. One three-pound jar makes five gallons. I mean, that’s deck-and-siding territory.
- Precision matters: Two-part liquid kits. More prep, uniform results. Your call on trading time for consistency.
- Spot fixes: Oxalic-acid powders dissolve fast. Perfect for iron stains or that one chair with personality.
- No patience? Ready-to-use sprays. Single step, less cleanup, you’re done.
Match your method to your mess.
Safety Considerations
Since I like keeping all my fingers and most of my lungs, I treat wood bleach like it’s auditioning for a hazard sticker. I mean, oxalic acid—basically tiny crystals of “maybe don’t touch this”—demands respect, not fear, which I’ve learned means suiting up proper.
Now, here’s my battle gear:
- Chemical-resistant gloves (the thick ones, not those flimsy dishwashing excuses)
- Goggles that actually seal
- A respirator mask, since “fumes” is a cute word for lung Roulette
I work outside, or I crank every window open. Confined spaces? That’s where vapors pool, and I don’t fancy respiratory irritation, thanks.
Storage’s simple: sealed, dry, cool, and definitely not where my dog mistakes it for kibble.
Spills happen. I neutralize with baking soda dissolved in water—weak alkaline, roughly a tablespoon per cup, though I eyeball it—then wipe.
And I follow dilution ratios exactly. Over-concentrated means chemical burns and ruined wood. Precision beats machismo.
Frequently Asked Questions
Does Wood Bleach Expire if Unopened?
I store wood bleach for years, unopened, and it’ll usually work—though I’m not running lab tests here.
Now, oxalic acid and two-part peroxide bleaches, they’re stable, chemically speaking. I mean, it’s not milk.
But I eyeball separation, crystallization, funny smells.
If it’s chunky or reeks wrong, I toss it. No hard feelings.
Shelf life? Two, maybe four years. I hedge. You should too.
Can Bleached Wood Be Stained Immediately After?
No, you’ll wreck your finish if you rush it. I wait 24 hours minimum, sometimes 48 if I’m feeling paranoid. The wood’s gotta dry completely or your stain gets patchy, and nobody wants that tiger-stripe look on their deck. Touch it. If it feels cool or damp, walk away. Grab coffee. Come back tomorrow.
Will Wood Bleaching Raise Wood Grain Texture?
Yes, it’ll raise the grain, no question. I wet wood, fibers swell—that’s just anatomy. Bleach adds water, so you’re swelling trouble. I sand after drying, always. 220 grit, light touch, or you’ll cut through the bleached layer. Now, oxalic acid‘s gentler, less swelling, but two-part? That’ll puff things up proper. I mean, it’s fixable, just don’t stain until you’ve sanded smooth. Patience, friend.
Is MDF Safe to Bleach Like Solid Wood?
I wouldn’t bleach MDF like solid wood—it’s a recipe for disappointment, maybe disaster.
MDF isn’t wood, it’s glue and sawdust compressed tight, and bleaches soak in weird, swell the fibers unevenly, leave blotchy patches that look like water stains from a cheap motel ceiling. You’ll get fuzzy edges, softened corners, the whole thing turns mushy. I’ve tried. Save yourself.
Now, solid wood? That drinks bleach predictably, grain rises, you sand, you’re fine. MDF just… dissolves, basically. Use paint, or accept the brown. I mean, really.
Does Oxalic Acid Bleach Kill Mold Spores?
I wouldn’t count on it, honestly. Oxalic acid’s great for iron stains and darkening, but it’s not a registered mold killer.
Now, it might *look* like it worked—the bleaching effect lightens the surface, kills some surface growth maybe—but mold spores? They’re stubborn little survivors. You’ll need something tougher for that job.
- Specialized fungicides
- Borate solutions
- Bleach-water mix (1:10, roughly)
I mean, oxalic acid’s a wood bleach, not an exterminator.
Rounding Up
I’ve tested enough wood bleach to stain my garage floor, my dignity, and one unfortunate pair of jeans.
Pick oxalic acid for dark stains—about 1 lb covers roughly 100 square feet, give or take your wood’s mood. Grab a two-part kit (Daly’s, I’m looking at you) for serious discoloration, or Rust-Oleum if you’re feeling lazy and your deck’s just dirty.
Now, wear gloves. Seriously. I didn’t, once, and my fingerprints looked like abstract art for a week.
Bleach responsibly, friends.
