---
product_id: 13251167
title: "Concrobium 29665 Mold Stain Eraser, 22.9 oz."
brand: "concrobium"
price: "B/.20"
currency: PAB
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.pa/products/13251167-concrobium-29665-mold-stain-eraser-22-9-oz
store_origin: PA
region: Panama
---

# 3+ hour stain removal dwell time Safe for indoor & outdoor use Powder-to-liquid formula Concrobium 29665 Mold Stain Eraser, 22.9 oz.

**Brand:** concrobium
**Price:** B/.20
**Availability:** ❌ Out of Stock

## Summary

> 🧼 Say goodbye to mold stains—effortless, powerful, and professional-grade clean every time!

## Quick Answers

- **What is this?** Concrobium 29665 Mold Stain Eraser, 22.9 oz. by concrobium
- **How much does it cost?** B/.20 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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

- • **Time-Smart Treatment:** Just apply and let it work for 3+ hours—maximize results with minimal effort.
- • **Versatile Surface Savior:** Perfectly safe and effective on decks, drywall, concrete, siding, showers, and more.
- • **Lightweight & Ready-to-Use:** Compact 22.9 oz powder easily mixes into a potent gallon of cleaner for multiple applications.
- • **Effortless Mold Eradication:** Mix, spray, and forget—no scrubbing needed for deep stain removal.
- • **Powerful Black Mold Fighter:** Targets even the toughest black mold stains with advanced cleaning action.

## Overview

Concrobium 29665 Mold Stain Eraser is a 22.9 oz powder formula that mixes with warm water to create a potent mold and mildew stain remover. Designed for both indoor and outdoor surfaces, it eliminates tough stains including black mold without scrubbing or rinsing. Simply spray and let it work for at least 3 hours, making it a lightweight, time-efficient solution trusted by professionals and homeowners alike.

## 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.

## 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 |
|---------------|-------|
| Manufacturer | Rust-Oleum |
| Part Number | 29665 |
| Item Weight | 1.6 pounds |
| Product Dimensions | 3.8 x 3.8 x 7.3 inches |
| Item model number | 29665 |
| Is Discontinued By Manufacturer | No |
| Size | 22.9 Fl Oz (Pack of 1) |
| Color | Blue/Green |
| Finish | Powder |
| Material | Stain |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Special Features | Lightweight |
| Usage | Inside; Amateur, Inside; Professional, Outside; Amateur, Outside; Professional |
| Included Components | Mold Cleaner |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** Concrobium
- **Item Form:** Liquid,Powder
- **Scent:** Unscented
- **Specific Uses For Product:** Inside; Amateur, Inside; Professional, Outside; Amateur, Outside; Professional
- **Material Feature:** Organic

## 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

### ⭐⭐⭐⭐⭐ Awesome, Follow Directions
*by S***E on May 19, 2019*

I treated attic mold with the Concrobium Mold Control and a Fogger that I rented from Home Depot. ( That is just to kill the mold not stain removal, although some of the staining went away)I purchased this stain removal powder and followed the instructions to mix in an open container (I used my chemical sprayer and left it open for 10 minutes, stirring occasionally) After that I put the lid on the sprayer and started spraying. HOLY COW, some of the mold staining literally disappeared as I went. Most disappeared as I took breaks to let it soak into the bare wood (underside of the roof sheathing in the attic) I almost ordered more when I realized that it gets added to only 1 gallon but I am glad I did not as I got everything I could see from the attic access in my closet.IMPORTANT!-If you mix this inside like I did, maybe do it in the bathroom with the fan on.-It will foam up and overflow in a one gallon max sprayer.-Try to keep the foam, the point is to mix in a container big enough to allow the reaction but retain the foam after the stuff outgasses and breaks back down to liquid. I might have wasted some by continually scraping the foam off as it overflowed. (Just follow the directions like I didn't)-If you use a non vented sprayer (IT SAYS TO USE A VENTED ONE) it will build up some pressure on its own so do not pump up until you know how much pressure it is making on its own. I had to open the sprayer several times to let out some pressure. This is another reason I moved to the bathroom on the second floor near the attic access so I could spray it into the tub and relieve pressure there.-It will leave a white residue (wipes of with almost no effort) if you over saturate....I would rather see white residue that mold (after going back to look there is little residue anyways). So if that bothers you take your time!Sounds scary but it is not. Follow the directions. Mix it, wait 10 minutes, Spray....

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐ 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

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-22*