--- description: SRW Products M3C Mold, Moss & Mildew Cleaner is a heavy-duty mold, lichen, and algae cleaner that cleans any hardscape surface. title: M3C Mold, Moss & Mildew Cleaner™ image: https://srwproducts.com/wp-content/uploads/2023/02/M3C-Mold-Moss-Mildew-Cleaner.webp --- [Skip to content](#fl-main-content) # M3C Mold, Moss & Mildew Cleaner™ Specialty Clean **M3C Mold, Moss & Mildew Cleaner.** We consider it more of a killer than a cleaner.Our fast-acting, heavy-duty formula eliminates mold, moss, mildew, algae, and lichens while helping to prevent them from returning. This concentrated formula works without pressure washing, scrubbing, or rinsing to break down mold, moss, mildew, lichen, and algae deep down at its source with our easy-to-use mix and spray formula that’s free from bleach and non-acidic. M3C is suitable for any outdoor hard surface, including pavers, concrete, brick, shingles, asphalt, and wood, for great-looking outdoor spaces all year round. Remember to spot clean with an SRW Specialty Cleaner first, then clean the entire surface with [PW Paver Wash™](https://srwproducts.com/product/pw-paver-wash/) or [DW Dual Wash™](https://srwproducts.com/product/dw-dual-wash/) before [sealing](https://srwproducts.com/products/sealers/). Why is cleaning before sealing important? Always clean before you seal for the best sealing results. SRW Products always recommends using PW Paver Wash™ or DW Dual Wash™ before sealing a project. Cleaning solutions pull dirt and debris out, opening up pores and leaving an ideal surface for the sealer to bond, while pressure washing alone drives dirt and debris deeper into the pores. [ Contact Us ](https://srwproducts.com/contact-us/) [ View Tech Sheets ](#tech-sheets) [![M3C Mold, Moss & Mildew Cleaner™](https://srwproducts.com/wp-content/uploads/2023/02/M3C-Mold-Moss-Mildew-Cleaner-600x600.webp)](https://srwproducts.com/wp-content/uploads/2023/02/M3C-Mold-Moss-Mildew-Cleaner.webp) Features Applications Application Chart Product Details Features * Breaks down mold, moss, mildew, lichen, and algae deep-down at its source * Non-acidic, no bleach formula * No pressure washing, scrubbing, or rinsing Applications * Concrete Pavers * Clay Pavers * Wetcast * Granite/Quartz * Marble/Travertine * Limestone * Bluestone/Sandstone * Block Retaining Wall * Manufactured Stone * Stamped Concrete * Brick * Shingles * Asphalt * Wood ![](https://srwproducts.com/wp-content/uploads/2020/03/MC_BeforeAfter_2016_RGB_web.jpg) Application Chart ![](https://srwproducts.com/wp-content/uploads/2020/04/Application-Chart_SpecialtyClean_Web.png) Product Details MC Mold, Moss & Mildew Cleaner | Specialty Clean | **PART NUMBER** | **SIZE** | **AMT PER CTN** | | --------------- | -------- | --------------- | | SSMC CTN QT4 | 1 QT | 4/CTN | | SSMC CTN GAL4 | 1 GAL | 4/CTN | Looking to Buy? **CONTRACTORS:** If you are a contractor looking to try one of our products, [click here](https://srwproducts.com/dealer-locator/) for a dealer in your area, or [click here](https://srwproducts.com/about/sales-team-family/) to connect with your local sales rep for a demo. **DEALERS:** If you are a dealer looking for an in-store demo or to bring a product in, [click here](https://srwproducts.com/dealer-locator/) to find your local sales rep. **HOMEOWNERS:** If you are a homeowner, [click here](https://srwproducts.com/dealer-locator/) to find a dealer in your area. ## M3C Mold Moss & Mildew Cleaner™ Instructions 1. ### Dilute 1. Dilute one part M3C Mold, Moss & Mildew Cleaner™ with five parts water into a garden sprayer. 2. ### Apply 1. Recommended application temperatures are 50°F – 80°F (10°C – 27°C). 2. Do not apply if rain is forecast within 24 hours. 3. Spray onto a dry surface and allow the solution to fully saturate the area. 4. Allow to air dry overnight. 3. ### Wait 1. Wind and rain will wash away debris as it’s broken down. 2. 3-7 days if desired, use a stiff bristle brush and hose to clean remaining debris one week after application. 4. ### Re-Apply 1. To maintain a stain-free outdoor space, re-apply M3C Mold, Moss & Mildew Cleaner™ as needed, up to 6 times per year. 5. ### COVERAGE 1. 1 gallon of concentrate makes 6 gallons of product, which covers approximately 750–2200 sq. ft.(69.68–204.39 sq. m. per 3.78 liters) Coverage will vary depending on surface & severity of stain. 6. ### CLEAN UP & STORAGE 1. Rinse tools with soap and water. **KEEP FROM FREEZING.** 7. ### USER TIPS 1. Always follow surface manufacturer’s cleaning recommendations. 2. Test inconspicuous area before starting the general application to ensure desired results. 3. For maximum effectiveness, follow mixing instructions carefully. 4. If accidentally sprayed onto vegetation, rinse with water. 5. Excessive staining may take longer to come completely clean. Re-apply 1-2 months after initial treatment. Do not apply more than 6 times per year. ### Tech Sheets [ Safety Sheet ](https://srwproducts.com/wp-content/uploads/2021/02/M3C-Mold-Moss-Cleaner-SDS-2024.pdf) [ Technical Data Sheet ](https://srwproducts.com/wp-content/uploads/M3C%5FTechSheet.pdf) ## Video M3C Mold Moss & Mildew Cleaner™ is a convenient spot clean solution for any paver or surface material. Save time and money with our quick and easy four-step process. Customers Also Search ## Related products * [![PW Paver Wash™](https://srwproducts.com/wp-content/uploads/2023/02/PW-Power-Wash-300x300.webp)PW Paver Wash™ ](https://srwproducts.com/product/pw-paver-wash/)[Read more](https://srwproducts.com/product/pw-paver-wash/) * [![CDX Cleaner & Degreaser X-Treme™](https://srwproducts.com/wp-content/uploads/2022/12/468047143-cleaner-degreaser_images_400x40049-300x300.jpg)CDX Cleaner & Degreaser X-Treme™ ](https://srwproducts.com/product/cdx-cleaner-degreaser-x-treme/)[Read more](https://srwproducts.com/product/cdx-cleaner-degreaser-x-treme/) * [![EF Efflorescence Remover™](https://srwproducts.com/wp-content/uploads/2023/02/EF-Efflorescence-300x300.webp)EF Efflorescence Remover™ ](https://srwproducts.com/product/ef-efflorescence/)[Read more](https://srwproducts.com/product/ef-efflorescence/) Frequently Asked Questions ### Where can I buy MC Moss, Mold & Mildew Cleaner? Call us at [1-800-752-9326](tel:+18007529326) or use our dealer locator. We will gladly help locate a dealer near you! Do you have additional questions? [Contact us](https://srwproducts.com/contact-us/). Download Our Catalog [ Download ](https://srwproducts.com/wp-content/uploads/SRW-Catalog%5F2026-.pdf) ✕ ```json {"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/","url":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/","name":"M3C Mold, Moss & Mildew Cleaner™","isPartOf":{"@id":"https:\/\/srwproducts.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/#primaryimage"},"image":{"@id":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/#primaryimage"},"thumbnailUrl":"https:\/\/srwproducts.com\/wp-content\/uploads\/2023\/02\/M3C-Mold-Moss-Mildew-Cleaner.webp","datePublished":"2022-12-22T15:01:39+00:00","dateModified":"2026-02-27T20:08:41+00:00","description":"SRW Products M3C Mold, Moss & Mildew Cleaner is a heavy-duty mold, lichen, and algae cleaner that cleans any hardscape surface.","breadcrumb":{"@id":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/#primaryimage","url":"https:\/\/srwproducts.com\/wp-content\/uploads\/2023\/02\/M3C-Mold-Moss-Mildew-Cleaner.webp","contentUrl":"https:\/\/srwproducts.com\/wp-content\/uploads\/2023\/02\/M3C-Mold-Moss-Mildew-Cleaner.webp","width":1667,"height":1667},{"@type":"BreadcrumbList","@id":"https:\/\/srwproducts.com\/product\/mc-mold-moss-mildew-cleaner\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/srwproducts.com\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/srwproducts.com\/shop\/"},{"@type":"ListItem","position":3,"name":"M3C Mold, Moss & Mildew Cleaner™"}]},{"@type":"WebSite","@id":"https:\/\/srwproducts.com\/#website","url":"https:\/\/srwproducts.com\/","name":"SRW Products","description":"","publisher":{"@id":"https:\/\/srwproducts.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/srwproducts.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/srwproducts.com\/#organization","name":"SRW Products - Adhesives and more","url":"https:\/\/srwproducts.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/srwproducts.com\/#\/schema\/logo\/image\/","url":"https:\/\/srwproducts.com\/wp-content\/uploads\/2020\/05\/cropped-Favicon.png","contentUrl":"https:\/\/srwproducts.com\/wp-content\/uploads\/2020\/05\/cropped-Favicon.png","width":512,"height":512,"caption":"SRW Products - Adhesives and more"},"image":{"@id":"https:\/\/srwproducts.com\/#\/schema\/logo\/image\/"}}]} {"@context":"https:\/\/schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Where can I buy MC Moss, Mold & Mildew Cleaner?","acceptedAnswer":{"@type":"Answer","text":"

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