--- product_id: 16645442 title: "Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal" brand: "blue bear" price: "€ 207.18" currency: EUR in_stock: true reviews_count: 8 category: "Blue Bear" url: https://www.desertcart.at/products/16645442-blue-bear-500mr-bean-e-doo-mastic-and-adhesive-remover store_origin: AT region: Austria --- # Soy-based biodegradable formula Low-odor, low-VOC for indoor use Contractor-grade strength Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal **Brand:** blue bear **Price:** € 207.18 **Availability:** βœ… In Stock ## Summary > 🌟 Remove the old, reveal the bold β€” clean concrete, no compromise! ## Quick Answers - **What is this?** Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal by blue bear - **How much does it cost?** € 207.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/16645442-blue-bear-500mr-bean-e-doo-mastic-and-adhesive-remover) ## Best For - blue bear enthusiasts ## Why This Product - Trusted blue bear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Eco-Friendly & Safe:** Soy-based, biodegradable formula that’s non-toxic and perfect for sensitive environments like schools and hospitals. - β€’ **Comfort-First Low Odor:** Low-VOC and minimal fumes keep your workspace breathable and comfortable during long projects. - β€’ **Maximized Coverage & Efficiency:** Covers up to 200 sq. ft. per gallon, reducing labor time and speeding up your renovation workflow. - β€’ **Deep Penetration for Old Adhesives:** Softens even stubborn, aged mastics for easier removal and a pristine concrete surface ready for your next finish. - β€’ **Powerful Contractor-Grade Performance:** Tackles tough mastics, carpet glue & tile adhesives with professional strength. ## Overview Blue Bear 500MR is a professional-grade, soy-based adhesive remover designed specifically for concrete surfaces. Its biodegradable, low-odor formula effectively dissolves tough mastics, carpet glue, and tile adhesives while being safe for indoor use in sensitive spaces. Covering up to 200 sq. ft. per gallon, it maximizes productivity by reducing labor and repeat applications. Ideal for contractors and DIYers aiming to restore concrete floors efficiently and responsibly. ## Description Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal | Professional Soy-Based Formula for Carpet, Tile & Asbestos Mastics, Low-Odor, Non-Toxic, Safe for Schools & Hospitals - desertcart.com Review: This mastic remover worked great when I did it correctly... - PROJECT: 58 year old black asbestos mastic under cracked, beat up, loose asbestos tile. WHAT I USED FOR THE MASTIC REMOVAL: - Blue Bear 500MR - Concrete degreaser from Rust-Oleum - Rubber disposable gloves - Cheap squeegee you can throw away - Cheap scrub brush you can throw away - Disposable shoe covers - Kitty litter - Metal dust pan - Lots of those strong blue shop paper towels. (Not the kitchen paper towels) SHORT STORY First Attempt: 2 hour soak time Result: .....Kinda worked, but not really. - Lots of water was still on the floor and my patience was wearing thin after I got the tile up, so I didn't spread the 500MR as well as I should have. - The added water from my tile removal diluted the 500MR so it wasn't close to it's full strength. Second Attempt: 12 hour soak time Result: Mastic Gone! - After cleaning up my first attempt, I reapplied the 500MR and very evenly coated the floor. - Let it sit overnight - Some scrubbing, kitty litter, and a couple rounds of degreaser gave us a mastic free floor! LONG STORY: Background: We just bought a house from 1960 and it has asbestos tile running throughout (tested). Not a big deal as we would just be covering it up with other flooring anyway. However the popcorn ceiling in the master and the compromised tile in the laundry room would not be a simple "cover it up and forget it" type of solution. We had the popcorn ceiling professionally removed and I went to work on the tile. After watching video after video about different ways to remove this black death tar adhesive, I finally decided to give the Blue Bear 500MR the starting position. It was a little spendy, but I liked the idea that it was biodegradable and their videos made it look so darn easy. Prep: After putting on my hazmat suit, gloves, goggles, respirator, and telling my wife I loved her, just in case I didn't make it out alive, I stepped into the plastic and duct tape sealed room, armed with a spray bottle, hand tools, and the 500MR. After two hours of spraying water, tile scraping, and muffled swearing into my respirator, the tile was removed and it was time for the 500MR to step up to the plate. Performance: At this point I was so frustrated with the tile that I didn't give the 500MR a setup that would lead to it's success. The floor was still soaking wet with all the water and I was about to burn the newly purchased home to the ground. I poured a little less than half the 500MR on the floor, spread it around (sort of), and got out of my astronaut costume so I could get into the makeshift decontamination shower. We went back to our apartment, had dinner, and I returned two hours later. The mastic remover did the best it could with my sloppy set up. All the water that I left on the floor diluted the 500MR so it lost some of its strength and my spreading job was lazy at best. After using kitty litter to clean up all the water and 500MR, I gave the 500MR the second chance it deserved. I reapplied the 500MR using mostly my hand in a rubber glove to very evenly spread it over every square inch of the cleaned up floor. I then left it over night and returned the next morning to a floor that was easily broken free of it's black mastic tomb with a scrub brush and some more kitty litter. A couple rounds of degreaser and the floor is sans mastic! Conclusion: What I thought was going to be the easy part, taking off the tile, ended up being the bane of my existence. And what I thought was going to be the hardest part of the job, removing the black mastic, was made extremely easy by the Blue Bear 500MR (as soon as I actually took the time to do it correctly). Things I learned that might help you: - Don't let the 500MR get diluted with water. It doesn't work as well. Just squeegee up the water before applying. It doesn't need to be dry (and shouldn't be dry if your dealing with asbestos), just free of standing water. - Kitty litter is awesome. Worked way better for me to make a little pile of litter and squeegee the 500MR/mastic soup toward the pile instead of spreading the litter around everywhere. Kitty litter gets pasty and not easy to push around when it starts soaking everything up. - Give it time. I was nervous that the 500MR would dry out if left too long on the floor. It didn't. This has a constancy something close to olive oil so I'm sure the longer it sits the more it soaks into the concrete. This will result in very easy mastic removal, but also more time spent with the degreaser and the concrete possibly being stained. So use your judgement to get a good balance of what's important to you. We are laying new flooring over the laundry room so we didn't care if the concrete was stained. - Wear shoe covers. The shoe covers will get soaked with oil/degreaser and will not protect your shoes from getting oily and tracking it everywhere, but they WILL prevent the tread of your shoes from getting CAKED with kitty litter paste which is not fun to remove. They are also cheap, easy to take off, throw away in your mastic trash bag, and swap with each stage of the process. - You will use so many paper towels. Get the good, thick, blue shop paper towels. Normal kitchen paper towels won't work. (Sorry Bounty) I hope this helps anyone with the mastic removal process. And please don't remove/mess with anything containing asbestos unless you are confident you can do it safely, responsibly, and dispose of it according to your local Department of Environmental Quality code. It's not worth the risk. That being said... This stuff is awesome. Review: Works like magic - and no toxic fumes - ADDENDUM: I have since tried using it on larger patches of the yellow mastic. And, at least in my house, the yellow mastic is impervious to Blue Bear. I have a metal floor scraper, and it's brutal trying to get this stuff up, even after soaking it in BB for 4 hours. The Black, it did really well. Even when it needed a few passes, you could see it dissolving and melting a little more each time. But this yellow, it's not even fazed by it. Like spilling water on it. I am going to do some research online to see if anyone has tips. But otherwise, my dream of concrete flooring is done, because I'm not going back to that toxic fuming stuff that I was trying before. That was not anything I ever want in my house again. And I'm not going to grind 1/2 the house with a grinder. :( I have both black and yellow mastic all over my concrete floors after I pulled up linoleum and cheap tiles. I tried a super toxic produce in the kitchen. It definitely got up a lot of the black mastic, but it was horrible with fumes, even with windows and doors open. Blue bear has a smell to it, but nothing that is a problem. I probably should be using a bucket of this stuff, but wanted to test out a small amount before buying a larger tub of it. The bottle came with a sprayer, and so I just sprayed it on the glue. Then I worked it in with a stiff bristle brush and let it sit for a few hours. Then I used a floor scraper on it. Then I put some Dawn in a bucket with water and scrubbed the floor. Then used a sponge and some rags to dry it up. Since it's a soy product, I just washed the tools up after. It's messy--the bucket has a lot of staining from the mastic glue, but I guess that's expected. Still beats toxic mess. I haven't used enough to need a cat liter clean up yet. But may try that later. It got through the mastic and I now see concrete. It still has patches that are tenacious, but I'm going to be buying the big bucket, and I'm betting that will take care of these tough patches. I would say it works as well as the really toxic strippers, but is a lot easier to work with because it isn't so toxic and hard to breathe. Just be ready to get messy. ## Features - CONTRACTOR-GRADE CONCRETE SURFACE ADHESIVE REMOVAL: Professional-strength formula removes tough mastics, carpet glue, and tile adhesives from concrete surfaces, helping contractors and DIYers complete surface prep faster and more efficiently. - SOY-BASED, BIODEGRADABLE FORMULA: Powerful soy-based adhesive remover breaks down mastic, glue, and sticky residues without harsh petroleum solvents. Biodegradable, non-caustic, and effective for professional or DIY cleanup. - LOW-ODOR, LOW-VOC FORMULA: Removes mastic and floor adhesives without overwhelming fumes. Low-odor, low-VOC performance improves comfort during indoor projects and is ideal for occupied or sensitive spaces. - REVIVES OLD CONCRETE SURFACES: Penetrates deep to break down stubborn, aged adhesives and construction glue, revealing cleaner concrete ready for new finishes and helping simplify tough renovation projects. - MAXIMIZE PRODUCTIVITY & COVERAGE: Covers approximately 100-200 sq. ft. per gallon, helping remove floor adhesives efficiently, reduce labor time, minimize repeat applications, and speed up project completion. - OPTIMIZED FOR BEST RESULTS: Allow BEAN-e-doo 500MR to penetrate until mastic softens, typically 1 - 2 hours for black/asbestos mastics and 4 - 8 hours for vinyl or acrylic mastics. Scrape away softened adhesive. Reapply if needed. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00U2RCK2C | | Best Sellers Rank | #25,759 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Flooring Adhesive Remover #8 in Concrete | | Brand | Blue Bear | | Brand Name | Blue Bear | | Customer Reviews | 4.2 out of 5 stars 746 Reviews | | Item Form | Liquid | | Item Volume | 128 fluid ounces | | Manufacturer | Franmar | | Material Feature | Biodegradable, Eco-Friendly, Non-Toxic | | Material Features | Biodegradable, Eco-Friendly, Non-Toxic | | Model Number | BBIM11G | | Number of Items | 1 | | Part Number | BBIM11G | | Scent | Little to no odor | | Size | 128 Fl Oz (Pack of 1) | | Special Features | Low-odor, low VOC | | Specific Uses For Product | Restoring concrete floors | | Surface Recommendation | Concrete | | UPC | 040926761289 | | Unit Count | 128 Fluid Ounces | ## Product Details - **Brand:** Blue Bear - **Item Form:** Liquid - **Material Feature:** Biodegradable, Eco-Friendly, Non-Toxic - **Scent:** Little to no odor - **Specific Uses For Product:** Restoring concrete floors ## Images ![Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal - Image 1](https://m.media-amazon.com/images/I/71Lc2ENBzbL.jpg) ![Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal - Image 2](https://m.media-amazon.com/images/I/81BuvxkYqGL.jpg) ![Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal - Image 3](https://m.media-amazon.com/images/I/81qy-jmtmYL.jpg) ![Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal - Image 4](https://m.media-amazon.com/images/I/81jlQnNii-L.jpg) ![Blue Bear 500MR: BEAN-e-doo Mastic and Adhesive Remover for Concrete 1 Gal - Image 5](https://m.media-amazon.com/images/I/81wUG7VwIeL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will This Remove My Type of Mastic or Flooring Adhesive?** A: Type 1 mastics are water-resistant and may require longer dwell times. Type 2 mastics are commonly found on concrete floors and typically remove more easily. Black mastics also soften well but often create a messier cleanup process. **Q: How Does Adhesive Thickness Affect Removal Time?** A: Thin layers usually soften and liquefy quickly. Thick applications, especially over 1/8 inch, may require several hours of dwell time. Keep the product wet while it works to ensure maximum effectiveness. **Q: How Long Should I Let the Product Work?** A: Allow at least 1 hour of dwell time for best results. Black mastics often soften within 1 to 2 hours, while vinyl and acrylic mastics may take 4 to 8 hours. Stubborn adhesives can require longer dwell times. **Q: What Conditions Deliver the Best Results?** A: Best results on clean, dry concrete at 55Β°F–85Β°F. Let sit at least 1 hour and keep wet while working. Thin mastic removes faster; thicker or older adhesive may need longer dwell time to fully soften and release. **Q: What's the Best Way to Clean Up After Removal?** A: For black mastics, apply an absorbent material such as oil-dry before collecting the residue. Lighter mastics can typically be scooped into a disposal container. Always clean the surface thoroughly before installing new flooring. ## Customer Reviews ### ⭐⭐⭐⭐⭐ This mastic remover worked great when I did it correctly... *by N***K on January 13, 2019* PROJECT: 58 year old black asbestos mastic under cracked, beat up, loose asbestos tile. WHAT I USED FOR THE MASTIC REMOVAL: - Blue Bear 500MR - Concrete degreaser from Rust-Oleum - Rubber disposable gloves - Cheap squeegee you can throw away - Cheap scrub brush you can throw away - Disposable shoe covers - Kitty litter - Metal dust pan - Lots of those strong blue shop paper towels. (Not the kitchen paper towels) SHORT STORY First Attempt: 2 hour soak time Result: .....Kinda worked, but not really. - Lots of water was still on the floor and my patience was wearing thin after I got the tile up, so I didn't spread the 500MR as well as I should have. - The added water from my tile removal diluted the 500MR so it wasn't close to it's full strength. Second Attempt: 12 hour soak time Result: Mastic Gone! - After cleaning up my first attempt, I reapplied the 500MR and very evenly coated the floor. - Let it sit overnight - Some scrubbing, kitty litter, and a couple rounds of degreaser gave us a mastic free floor! LONG STORY: Background: We just bought a house from 1960 and it has asbestos tile running throughout (tested). Not a big deal as we would just be covering it up with other flooring anyway. However the popcorn ceiling in the master and the compromised tile in the laundry room would not be a simple "cover it up and forget it" type of solution. We had the popcorn ceiling professionally removed and I went to work on the tile. After watching video after video about different ways to remove this black death tar adhesive, I finally decided to give the Blue Bear 500MR the starting position. It was a little spendy, but I liked the idea that it was biodegradable and their videos made it look so darn easy. Prep: After putting on my hazmat suit, gloves, goggles, respirator, and telling my wife I loved her, just in case I didn't make it out alive, I stepped into the plastic and duct tape sealed room, armed with a spray bottle, hand tools, and the 500MR. After two hours of spraying water, tile scraping, and muffled swearing into my respirator, the tile was removed and it was time for the 500MR to step up to the plate. Performance: At this point I was so frustrated with the tile that I didn't give the 500MR a setup that would lead to it's success. The floor was still soaking wet with all the water and I was about to burn the newly purchased home to the ground. I poured a little less than half the 500MR on the floor, spread it around (sort of), and got out of my astronaut costume so I could get into the makeshift decontamination shower. We went back to our apartment, had dinner, and I returned two hours later. The mastic remover did the best it could with my sloppy set up. All the water that I left on the floor diluted the 500MR so it lost some of its strength and my spreading job was lazy at best. After using kitty litter to clean up all the water and 500MR, I gave the 500MR the second chance it deserved. I reapplied the 500MR using mostly my hand in a rubber glove to very evenly spread it over every square inch of the cleaned up floor. I then left it over night and returned the next morning to a floor that was easily broken free of it's black mastic tomb with a scrub brush and some more kitty litter. A couple rounds of degreaser and the floor is sans mastic! Conclusion: What I thought was going to be the easy part, taking off the tile, ended up being the bane of my existence. And what I thought was going to be the hardest part of the job, removing the black mastic, was made extremely easy by the Blue Bear 500MR (as soon as I actually took the time to do it correctly). Things I learned that might help you: - Don't let the 500MR get diluted with water. It doesn't work as well. Just squeegee up the water before applying. It doesn't need to be dry (and shouldn't be dry if your dealing with asbestos), just free of standing water. - Kitty litter is awesome. Worked way better for me to make a little pile of litter and squeegee the 500MR/mastic soup toward the pile instead of spreading the litter around everywhere. Kitty litter gets pasty and not easy to push around when it starts soaking everything up. - Give it time. I was nervous that the 500MR would dry out if left too long on the floor. It didn't. This has a constancy something close to olive oil so I'm sure the longer it sits the more it soaks into the concrete. This will result in very easy mastic removal, but also more time spent with the degreaser and the concrete possibly being stained. So use your judgement to get a good balance of what's important to you. We are laying new flooring over the laundry room so we didn't care if the concrete was stained. - Wear shoe covers. The shoe covers will get soaked with oil/degreaser and will not protect your shoes from getting oily and tracking it everywhere, but they WILL prevent the tread of your shoes from getting CAKED with kitty litter paste which is not fun to remove. They are also cheap, easy to take off, throw away in your mastic trash bag, and swap with each stage of the process. - You will use so many paper towels. Get the good, thick, blue shop paper towels. Normal kitchen paper towels won't work. (Sorry Bounty) I hope this helps anyone with the mastic removal process. And please don't remove/mess with anything containing asbestos unless you are confident you can do it safely, responsibly, and dispose of it according to your local Department of Environmental Quality code. It's not worth the risk. That being said... This stuff is awesome. ### ⭐⭐⭐⭐⭐ Works like magic - and no toxic fumes *by A***D on January 15, 2021* ADDENDUM: I have since tried using it on larger patches of the yellow mastic. And, at least in my house, the yellow mastic is impervious to Blue Bear. I have a metal floor scraper, and it's brutal trying to get this stuff up, even after soaking it in BB for 4 hours. The Black, it did really well. Even when it needed a few passes, you could see it dissolving and melting a little more each time. But this yellow, it's not even fazed by it. Like spilling water on it. I am going to do some research online to see if anyone has tips. But otherwise, my dream of concrete flooring is done, because I'm not going back to that toxic fuming stuff that I was trying before. That was not anything I ever want in my house again. And I'm not going to grind 1/2 the house with a grinder. :( I have both black and yellow mastic all over my concrete floors after I pulled up linoleum and cheap tiles. I tried a super toxic produce in the kitchen. It definitely got up a lot of the black mastic, but it was horrible with fumes, even with windows and doors open. Blue bear has a smell to it, but nothing that is a problem. I probably should be using a bucket of this stuff, but wanted to test out a small amount before buying a larger tub of it. The bottle came with a sprayer, and so I just sprayed it on the glue. Then I worked it in with a stiff bristle brush and let it sit for a few hours. Then I used a floor scraper on it. Then I put some Dawn in a bucket with water and scrubbed the floor. Then used a sponge and some rags to dry it up. Since it's a soy product, I just washed the tools up after. It's messy--the bucket has a lot of staining from the mastic glue, but I guess that's expected. Still beats toxic mess. I haven't used enough to need a cat liter clean up yet. But may try that later. It got through the mastic and I now see concrete. It still has patches that are tenacious, but I'm going to be buying the big bucket, and I'm betting that will take care of these tough patches. I would say it works as well as the really toxic strippers, but is a lot easier to work with because it isn't so toxic and hard to breathe. Just be ready to get messy. ### ⭐⭐⭐⭐⭐ Worked fantastic for pressure sensitive adhesives *by D***N on February 16, 2026* This stuff worked like a charm! I had about 1200 sq ft area in one end of my shop that had been a temporary apartment while we built the house. After we had the house built, I remodeled the apartment area to keep just one room and the bathroom. The remainder went back to the shop. But, I had used the peel-and-stick carpet tiles and after removing them, there was a lot of adhesive remaining on the concrete. I want to paint the floor, so the adhesive had to go (besides, it was sticky and a pain to walk on). I tried the floor adhesive remover sold at Home Depot and Lowes both (two different brands). All they did was make a mess. I did some research, and apparently most carpet tile (and probably other floor tiles as well) use a pressure sensitive adhesive that is totally different from regular floor mastic. This was one of 4 products that I found in researching that would break down the pressure sensitive adhesives. I applied it with a acid brush and let it stand 4 hours. Then scraped the floor. The adhesive came up easily. after scraping all the adhesive out, I had an old Hoover floor-mate that I used to clean up the rest of the floor. After it dried, there was not a spot of adhesive anywhere. I did a little touch-up scraping around the corners and around the door, and the floor was clean as a whistle, ready to etch and paint. Be aware however, that if you use a floor scrubber/shampooer after scraping, the adhesive will still be in the stripper and it will dissolve in the water. Clean up of the machine can be a bit involved. In my case, I had an old machine that was on its last legs anyway, and as soon as I finish the shop I'm going to trash it. A mop and bucket would probably work too, but it would have been a bit more work. ## Frequently Bought Together - Blue Bear 500MR Mastic Remover For Concrete Surfaces Gallon - BLUE BEAR 700DG Degreaser Gallon - ABN Floor Razor Scraper, 8in – Heavy-Duty Adjustable Handle – Demolition, Flooring Removal Razor Blade Scraper --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/16645442-blue-bear-500mr-bean-e-doo-mastic-and-adhesive-remover](https://www.desertcart.at/products/16645442-blue-bear-500mr-bean-e-doo-mastic-and-adhesive-remover) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-09-02*