--- product_id: 13251167 title: "Concrobium 29665 Mold Stain Eraser, 22.9 oz." brand: "concrobium" price: "HK$143" currency: HKD in_stock: false reviews_count: 8 url: https://www.desertcart.hk/products/13251167-concrobium-29665-mold-stain-eraser-22-9-oz store_origin: HK region: Hong Kong --- # 3+ hour no-scrub action Organic & safe for multiple surfaces Powerful mold stain removal Concrobium 29665 Mold Stain Eraser, 22.9 oz. **Brand:** concrobium **Price:** HK$143 **Availability:** ❌ Out of Stock ## Summary > 🧼 Say goodbye to mold stains—effortless, powerful, and odor-free! ## Quick Answers - **What is this?** Concrobium 29665 Mold Stain Eraser, 22.9 oz. by concrobium - **How much does it cost?** HK$143 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/13251167-concrobium-29665-mold-stain-eraser-22-9-oz) ## Best For - concrobium enthusiasts ## Why This Product - Trusted concrobium brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Impact:** Leaves surfaces mold-free with a simple 3-hour dwell time. - • **Versatile Surface Savior:** Safe for decks, showers, drywall, concrete, siding, and more—indoor or outdoor. - • **Effortless Mold Eradication:** Mix powder with warm water, spray, and let it work—no scrubbing needed. - • **Trusted by Homeowners & Pros:** Highly rated solution for stubborn black mold and mildew stains. - • **Odor-Free Cleaning Experience:** No harsh bleach smell—just clean, fresh results. ## Overview Concrobium Mold Stain Eraser is a potent, organic cleaner that removes tough mold and mildew stains, including black mold, from a variety of interior and exterior surfaces. Simply mix the powder with warm water, spray the solution, and let it sit for at least 3 hours—no scrubbing or rinsing required. Ideal for professionals and homeowners seeking a safe, odorless, and effective mold stain treatment. ## Description Concrobium Mold Stain Eraser is an advanced cleaner that targets and removes tough, embedded mold and mildew stains on indoor and outdoor surfaces. Add Mold Stain Eraser powder to warm water and stir to create a powerful formula capable of tackling the most stubborn stains, including from black mold. Apply with a pump sprayer within 1 hour of mixing for best results. Review: Got rid of my mold on my front loader washer ring! - I used this for the mold in the ring of my front loader washer and it did get rid of the mold! I had disgusting mold and copper stains on the inner ring. If you have a front loader you have probably heard of this problem. Anyway, I used the Concrobium Mold Stain Eraser and let it sit on the ring for hours and it did get rid of the 80% mold, but not the copper stains. I wish I took a before photo, but you can see the after photo. The problem I had was getting rid of the stains that the pool of Concrobium didn't want to sit like the front of the inner ring where the water dripped off. I tried to wet a towel with the Concrobium and sit it on top of the mold on the right and left side of the ring, but that didn't work, so I think to get rid of all the mold stains I would physically need to unscrew the plate of my washer and take out off the ring and soak it in a bucket of Concrobium. Update: If I could give Concrobium 10 stars for cleaning my jetted tubs I would! I had mold on my jetted tubs that I have tried and tried to get rid of. I have used other expensive mold cleaners that didn't work. I just filled the tub with hot water poured the rest of my Concrobium bottle in and left it for 24 hours. I did run the jets a few time to get rid of anything inside the tubes. Anyway, I didn't even have to scrub anything. Everything was gone in a day! You can see in the photos. What a difference this stuff did on my tub, like night and day! I also love that there is really no smell with this stuff! I hate when you are overpowered by the bleach smell. Thank you, Concrobium! I will definitely buying more bottles of this magical stuff! Review: Cleans the Stains - I used this in conjunction with Concrobium Mold Control to treat mold and fungus growth in a crawl space. I found it to be effective and easy to use. When we bought out 50 year old house, the inspector mentioned that there was fungus growing on the wood in the crawl space. I put it on the list of things to do. A termite inspector noted it also and gave me an outrageous quote to take care of it. My desire to stay outside of bankruptcy won out over my claustrophobia so I set out to research if I could do a DIY job. I researched a lot of products and chose this system because it's easy to use and provides protection for the future. I didn't know how to identify fungus or mold so I just treated everything. It took about a month of weekends and a few days off in between. I got about 90% of the way done and decided to take a break. That was last fall. This spring I went down there to turn on the outside water, and I noticed that the treated area looks like new. The untreated area now I can tell what the fungus is supposed to look like. It's all over the untreated wood. So this weekend or next I'll be doing the last section. I hope there are no spiders in there. ## Features - Removes tough, embedded mold and mildew stains, including black mold stains - Combine powder with 1 gallon of warm water to create a powerful cleaner that requires no scrubbing - Allow cleaner to remain on surface for at least 3 hours - Safe, mold stain treatment for interior/exterior surfaces including decks, showers, drywall, concrete, siding and more - Mix and spray onto effected area and allow to dry - no scrubbing or rising required ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00AZFMWV0 | | Best Sellers Rank | #700,030 in Health & Household ( See Top 100 in Health & Household ) #7,097 in All-Purpose Household Cleaners | | Brand | Concrobium | | Brand Name | Concrobium | | Capacity | 1 gallons | | Customer Reviews | 4.2 out of 5 stars 447 Reviews | | Global Trade Identification Number | 00897946000429 | | Included Components | Mold Cleaner | | Item Form | Liquid,Powder | | Item Type Name | Mold Cleaner | | Item Volume | 1 gallons | | Item Weight | 1.6 pounds | | Manufacturer | Rust-Oleum | | Material Feature | Organic | | Material Features | Organic | | Model Number | 29665 | | Number of Items | 1 | | Part Number | 29665 | | Scent | Unscented | | Size | 22.9 Fl Oz (Pack of 1) | | Special Features | Lightweight | | Specific Uses For Product | Inside; Amateur, Inside; Professional, Outside; Amateur, Outside; Professional | | Surface Recommendation | Tile,Stone | | UPC | 897946000429 | | Unit Count | 22.9 Fluid Ounces | | Warranty Description | Manufacturer Warranty | ## Product Details - **Brand:** Concrobium - **Item Form:** Liquid,Powder - **Material Feature:** Organic - **Scent:** Unscented - **Specific Uses For Product:** Inside; Amateur, Inside; Professional, Outside; Amateur, Outside; Professional ## Images ![Concrobium 29665 Mold Stain Eraser, 22.9 oz. - Image 1](https://m.media-amazon.com/images/I/81dtmABqzoL.jpg) ![Concrobium 29665 Mold Stain Eraser, 22.9 oz. - Image 2](https://m.media-amazon.com/images/I/51ja8ZRBjvL.jpg) ## Questions & Answers **Q: How many gallons will the bottle make?** A: Sorry I already used it up. It is really a good product but it does take quite a bit to make it work-whatever the label says is what I did. It seems like I only got maybe 1 gallon but I could be wrong. **Q: Can you use this on drywall?** A: We did after first killing the mold with another product. The mold stain erase took care of the stain wonderfully. We are very pleased with it on drywall. We followed instructions exactly. **Q: Will it work on caulk and rubber?** A: Don't know about caulk and rubber but works great on paver bricks which surround my plants and shrubs. They still look cleaner than my neighbors bricks and it's been a couple years. **Q: How is it applied?** A: We mixed as stated on the bottle and put it in a pump sprayer. I was totally surprised at how well it worked. I contacted the company after first using the Concrobium Mold Control because the wall was still black. I was informed that even though it still looked bad, the mold was indeed dead. The Stain Eraser literally erased the darkness. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Got rid of my mold on my front loader washer ring! *by K***B on January 10, 2017* I used this for the mold in the ring of my front loader washer and it did get rid of the mold! I had disgusting mold and copper stains on the inner ring. If you have a front loader you have probably heard of this problem. Anyway, I used the Concrobium Mold Stain Eraser and let it sit on the ring for hours and it did get rid of the 80% mold, but not the copper stains. I wish I took a before photo, but you can see the after photo. The problem I had was getting rid of the stains that the pool of Concrobium didn't want to sit like the front of the inner ring where the water dripped off. I tried to wet a towel with the Concrobium and sit it on top of the mold on the right and left side of the ring, but that didn't work, so I think to get rid of all the mold stains I would physically need to unscrew the plate of my washer and take out off the ring and soak it in a bucket of Concrobium. Update: If I could give Concrobium 10 stars for cleaning my jetted tubs I would! I had mold on my jetted tubs that I have tried and tried to get rid of. I have used other expensive mold cleaners that didn't work. I just filled the tub with hot water poured the rest of my Concrobium bottle in and left it for 24 hours. I did run the jets a few time to get rid of anything inside the tubes. Anyway, I didn't even have to scrub anything. Everything was gone in a day! You can see in the photos. What a difference this stuff did on my tub, like night and day! I also love that there is really no smell with this stuff! I hate when you are overpowered by the bleach smell. Thank you, Concrobium! I will definitely buying more bottles of this magical stuff! ### ⭐⭐⭐⭐⭐ Cleans the Stains *by A***R on April 12, 2019* I used this in conjunction with Concrobium Mold Control to treat mold and fungus growth in a crawl space. I found it to be effective and easy to use. When we bought out 50 year old house, the inspector mentioned that there was fungus growing on the wood in the crawl space. I put it on the list of things to do. A termite inspector noted it also and gave me an outrageous quote to take care of it. My desire to stay outside of bankruptcy won out over my claustrophobia so I set out to research if I could do a DIY job. I researched a lot of products and chose this system because it's easy to use and provides protection for the future. I didn't know how to identify fungus or mold so I just treated everything. It took about a month of weekends and a few days off in between. I got about 90% of the way done and decided to take a break. That was last fall. This spring I went down there to turn on the outside water, and I noticed that the treated area looks like new. The untreated area now I can tell what the fungus is supposed to look like. It's all over the untreated wood. So this weekend or next I'll be doing the last section. I hope there are no spiders in there. ### ⭐⭐⭐⭐ Worked but needed two applications *by R***B on February 23, 2016* I used this product after applying the Concrobium mold killer (spray bottle) to a small, 8 square foot, black mold area in an unfinished attic area between roof joists. I wasn't happy with how it looked after scrubbing the sprayed area so I bought this product. It got most of the stain out. I decided to repeat the process and sprayed again, scrubbed and followed with the eraser. It looked really good after that. Then I fixed the venting problem that caused the mold in the first place. ## Frequently Bought Together - Concrobium 29665 Mold Stain Eraser, 22.9 oz. - concrobium 25001 Mold Control Jug, Gallon - Concrobium 25326CAL Mold Control Spray, 32 oz --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/13251167-concrobium-29665-mold-stain-eraser-22-9-oz](https://www.desertcart.hk/products/13251167-concrobium-29665-mold-stain-eraser-22-9-oz) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-10-14*