Is Zinsser Wood Bleach Discontinued? No — It’s Still Sold

No — Zinsser Wood Bleach was never discontinued. The two-part kit (Rust-Oleum/Zinsser SKU 300451) is still in production and currently in stock at Amazon, Walmart, Lowe’s, Home Depot, and Fastenal for around $26. We checked the live Amazon listing directly: in stock, 4.4 stars from 1,180+ ratings, 500+ bought in the past month. The “discontinued” story that circulates online — including an earlier version of this page — doesn’t trace back to any statement from Zinsser or its parent company, RPM International. Here’s what we could actually verify, and where the confusion likely started.

Is Zinsser Wood Bleach Still Available Right Now?

Yes. As of this update, Zinsser Wood Bleach (item 300451, a two-part 8 oz + 8 oz kit) is an active, currently-manufactured item on Rust-Oleum’s own Zinsser product catalog, with a technical data sheet and safety data sheet both current. It’s stocked by major retailers, not just resold as old inventory.

Still In Production — Verified In Stock

Zinsser Wood Bleach Kit – $26.30 The current, currently-shipping 2-part A/B kit — not a discontinued product, despite the rumor. Best for: Lightening dark or stained interior wood — furniture, trim, floors, cabinets — before refinishing Why we picked it: Pre-portioned Solution A / Solution B kit, no separate chemicals to source or dose yourself Main drawback: 8 oz of each solution covers roughly one small tabletop or a few small pieces per kit View Our Pick on Amazon

On Amazon specifically, the listing (ASIN B01MXDS72Z) shows “In Stock,” ships within a couple of days, and has hundreds of purchases per month — not the pattern you’d see on a discontinued item running out its last few units. It’s also carried by Home Depot, Lowe’s, Walmart, and industrial suppliers like Fastenal and WESCO, which stock current catalog items, not clearance stock.

Where the “Discontinued” Rumor Actually Came From

We looked for an official discontinuation notice from Zinsser or RPM International and didn’t find one. What we did find were several near-identical “why was Zinsser Wood Bleach discontinued” articles online — including, until this rewrite, this page — that assert a cause without citing any source. Different versions of that story blame a low-VOC compliance issue, a banned toxic ingredient, or a change in sodium hypochlorite regulation. Those explanations don’t agree with each other, and none of them cite a Zinsser statement, a recall notice, or a regulatory filing. That pattern — multiple sites repeating a confident but unsourced claim — is a strong sign it started as speculation that got copied around, not a documented fact.

There is one real thread worth noting: an older Zinsser Wood Bleach item number (42138) shows up in at least one chemical-ingredient database labeled as an “old product.” That’s consistent with a normal product-line update — a formula or packaging refresh under a new SKU, which brands do routinely — rather than the product being pulled from the market. If that SKU change is what people originally noticed, it would explain why the rumor exists without the product actually being gone.

What’s Actually in the Current Formula

The current kit is a two-part (A/B) system, sold as one box with two 8 oz bottles. Solution A goes on first and needs to sit 5 minutes on softwood or 10 minutes on hardwood; Solution B goes on next, while the surface is still wet from Solution A. Rust-Oleum’s current technical data sheet describes this as a caustic-and-peroxide-type two-part bleach system, which matches how true wood bleaches (as opposed to spot-stain removers) are formulated industry-wide. It’s labeled for indoor use only.

How to Use Zinsser Wood Bleach, Step by Step

Strip or sand the piece first so you’re working on bare wood — the bleach can’t reach through an existing finish. Wipe off dust and make sure the surface is dry before you start.

Apply Solution A with a clean sponge, saturating the whole area evenly. Let it sit — 5 minutes for softwoods like pine, 10 minutes for hardwoods like oak or maple. While the surface is still wet, apply Solution B over it with a second sponge (don’t reuse the first one). Let the piece sit overnight so it dries fully; don’t rush this part or the reaction won’t finish. Once dry, neutralize the surface with a vinegar-water rinse or diluted oxalic acid, then rinse with clean water. Finish with a light sanding to knock down any raised grain before you stain or seal.

Zinsser Wood Bleach vs Other Wood-Bleaching Options

Not every product labeled “wood bleach” does the same job, and mixing them up wastes a purchase:

• Two-part A/B bleach (Zinsser and similar kits): the only type that actually strips the wood’s natural pigment and lightens its base color. This is what you want for an evenly darker board you want to lighten overall.
• Oxalic acid (crystals or premixed): dissolves iron and tannin stains — black water rings, rust marks, weathered gray patches on outdoor wood. It does not lighten the wood’s underlying color, so it’s the wrong tool if the whole board is just naturally dark.
• Hydrogen peroxide alone (DIY): a mild, cheap option that can brighten wood slightly and leaves no residue, but it’s noticeably weaker than a true two-part system and won’t dramatically change color on its own.
• Chlorine/outdoor bleach (like Clorox): kills mold and mildew on outdoor wood and can clean graying decking, but it’s not a true wood bleach and won’t reliably lighten the wood’s own color the way an A/B kit does.

Where to Buy It

Zinsser Wood Bleach is currently listed at:

• Amazon (ASIN B01MXDS72Z) — the pick above, in stock as of this update
• Walmart.com — listed as a 16 oz total two-step kit
• Lowe’s and Home Depot — carried as the same 300451 item, though not every physical store stocks it on the shelf; see our Home Depot wood bleach guide for what’s actually sitting in-aisle versus what you need to order
• Fastenal and WESCO — industrial/trade suppliers that stock the same SKU

Frequently Asked Questions

Is Zinsser Wood Bleach discontinued?

No. As of this update, it’s an active Rust-Oleum/Zinsser product (SKU 300451), currently in stock on Amazon and at major retailers. No official discontinuation notice from Zinsser or RPM International exists that we could find.

Where can I buy Zinsser Wood Bleach now?

Amazon, Walmart, Lowe’s, and Home Depot all currently list it, along with trade suppliers like Fastenal and WESCO. Availability can vary by physical store, but it ships from all of these retailers online.

What is Zinsser Wood Bleach made of?

It’s a two-part (A/B) caustic-and-peroxide-type wood bleach system, applied as Solution A followed by Solution B while the surface is still wet. It’s for indoor use only.

How do you neutralize Zinsser Wood Bleach after use?

After the bleach has dried overnight, neutralize the surface with a vinegar-water rinse or diluted oxalic acid, then rinse with clean water and let it dry before a final light sanding.

Bottom Line

If you came here because you couldn’t find Zinsser Wood Bleach and assumed it was gone, it isn’t — it’s a current, in-stock product you can order today. The “discontinued” story appears to be an unsourced rumor that got repeated across a few sites rather than a documented fact, and we’ve corrected our own earlier version of it above.