Mastic Adhesive Remover 500MR Blue Bear BEAN-e-doo - 5 Gallon

Franmar BEAN-e-doo Mastic Adhesive Remover - 5 Gallon
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Your Price: $150.95 Sale $135.86
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Your Price: $150.95 Sale $135.86
- Save: $52.09!
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Item Description:

Do NOT use on wood surfaces. For use on concrete.

500MR Mastic Remover

An odorless, soy based mastic remover, the 500MR is ideal for use in occupied areas like post offices, schools, hospitals and other public places. With this user-friendly product, removing vinyl and ceramic mastic is made simple! The 500MR was specially designed to remove asbestos mastic, dissolving it into a thick liquid.

500MR mastic remover is the only product to pass both performance and environmental safety tests by the USPS for the removal of asbestos containing mastic. This safe-to-use mastic remover can be used without complaint or disruption. Our easy-to-use formula works on all types of mastic (even asbestos/black mastics) and carpet/tile adhesives – even if they’re decades old! Because it’s made with soybeans rather than petroleum distillates or other harsh chemicals, it’s ideal for use in schools, hospitals and other occupied areas.

APPLICATION of Bean-E-Doo 500MR Mastic and Adhesive remover:

Test in a small, inconspicuous area of the project before beginning the complete project. Apply sand barrier to protect any neighboring wood and drywall from absorbing mastic remover Bean-E-Doo product. Open windows to maintain ventilation of work area, since adhesive that is being removed may emit fumes. Apply BEAN•e•doo 500MR directly on concrete surface and spread with straw broom, long-handled brush or squeegee using light pressure. If applying to mastic with trowel ridges, cover all ridges with the mastic adhesive remover product. Allow BEAN•e•doo 500MR to sit until mastic softens. (Asbestos/black mastics will typically soften in one to two hours, and vinyl or acrylic mastics will soften in four to eight hours.) After mastic has softened, remove with a long-handled scraper or squeegee. Reapplication may be necessary.


  • 1 Gallon will cover 100-200 square feet
  • Formerly known as BEAN-e-doo Mastic Remover
  • Removes asbestos/black mastic, vinyl glue, ceramic mastic, traditional carpet adhesives
  • Virtually no odor
  • Less than 3% VOC
  • Made with 100% American Grown Soybeans
  • GHS Compliant
  • Cleans up easily with water and Franmar's Emerge Degreaser
  • No grinding or dust
Average Coverage:
100-200 Square Feet per Gallon
Flash Point:
Above 425 degrees F
Soy Ester, Proprietary Surfactant Blend
pH Level:
6.65 pH
Safe for Use On:
5 Gallon
2.3%, .06 lb/g, 20 g/l


Would you like to have all the facts, lost your operator's manual, need to order the right parts or just want to make sure you are maintaining your product properly? UnoClean is here to help:

People Who Bought This Also Bought

   4.4 / 5 • 65 reviews

by on June 11, 2024

Great product. Much more effective then the Sentinel 747.

by on October 2, 2023

It worked really well, once we figured out how to work with it and after a call to the company for help.

by on July 1, 2023

It is a excellent black mastic remover

by on March 21, 2023

Product did reactivate 30 years black mastic approximately 90 percent over 20 hours of setting time after applying. Product did not release any noxious fumes and actually had a pleasant smell.It was easily applied with a pump sprayer for very accurate coverage.Grinding the concrete surface appears to be a better option in this situation.

by on February 28, 2023

It's not a miracle product, a bit pricey, still requires work, but does the job

by on February 19, 2023

Works great on black mastic but not so well on white mastic. I am using it to remove mastic from under vinyl tiles and will be purchasing more. Citrus smell so no fumes.

by on February 10, 2023

Second order of 5 gallon bucket for under 800 sq feet. Biggest Turlock to using this is wait and hour and scrub the whole floor then wait another hour and repeat. This stuff is a little to expensive for what you get and not the best/clear instructions even on YouTube. Some mastic just refuses to be removed.

Customer Service on February 13, 2023

Hello, Thank you for your review, we are sorry you were not completely satisfied with the product. The tech sheet on our website states one gallon will generally cover 100-200 square feet it sounds like your surface was the lesser. It also states to 1 to 2 hours to soften black mastics but that vinyl or acrylic can take 4 to 8 hours. Please remember if you have any questions about a product we sell we are available by phone at 224-654-6500 to help. Thank you, Unoclean Customer Service

by on February 6, 2023

Worked well in one coat to remove black mastic. Had to use a second coat in a few stubborn spots. A+

by on January 9, 2023

Beanie-do mastic remover and degreaser worked very well on our concrete floor covered with black mastic. We did it twice just because of the black color which was very messy so the second time we saw the spots much better that needed some more attention. Love the product and especially that it is non toxic and odorless. We did 3000 sq ft.

by on December 21, 2022

Great product. Follow the i structions and the 50year old mastic comes right up. We even pushed it farther than instructed by pushing the used product onto the next days section of work(we were working on a 4000 Square foot room). It softened up all of it and made easy work of the next day by picking up the old then applying a quick thin coat and a quick mop.

by on December 1, 2022

Worked really well for what we needed. It was easy to use and cleaned 30 year old mastic off our basement floor.

by on September 6, 2022

Very easy to use

by on August 10, 2022

Definitely removes old black mastic from a 70 year old basement floor but it was a messy procedure. I had to use at least 2 applications to remove most of the mastic. I used about 5 gal for a 225 sq ft floor. I am struggling now to degrease the floor after the 2 applications. I have to find a good degreaser to remove the residue left after applications.

Customer Service on August 12, 2022

Hello Tom, we are happy hearing your success with the Mastic Remover. Here is the link to the de-greaser that goes with the 500MR https://www.unoclean.com/Franmar-Emerge-Surface-Degreaser-DF1GWD-Concentrate.aspx or type in Emerge in the search in the UnoClean search box. Thank you, UnoClean Customer Service

by on June 27, 2022

Outstanding response time and way less expensive than Amazon!!

by on February 28, 2022

This product works!

by on January 6, 2022

This product worked exceptionally well to loosen black mastic. 5 gallons cleaned up about 130 ft.². I used it in two stages, the first to get the majority loosened and removed, and then a second time to clean the Remaining stubborn areas.

by on December 27, 2021

Did not work as good as expected. A lot of wire brushing and scrubbing needed.

by on December 6, 2021

easy to use, great pricing for product.

by on September 21, 2021

This product works very well and does not have a strong odor. I would advise to work smaller areas if you are older or slower because some of the spots seamed to dry out before we had a chance to scrape them. We waited about 2 hrs and the directions say 1-2 hours. You might start earlier than I did. It is definitely a product I would recommend and buy again.

by on September 21, 2021

Great product, Great service..

by on July 27, 2021

Works Great!

by on June 25, 2021

Follow the directions and it does a great job!

by on March 1, 2021

Works as advertised

by on December 2, 2020

This is fantastic and very easy to use!!

by on September 20, 2020

I used blue bear mastic remover in my basement on more than 50 year old black mastic. It made the job in my 750sq ft. basement a breeze.

by on September 10, 2020

Great product. Had stubborn mastic on our concrete basement floor, poured this down, spread it with a straw brush and let it sit overnight. Mastic came off easily with a floor squeegee. Must use the degreaser suggested to clean off the mastic remover, but this was a great way to get rid of the mastic without using a floor sander.

by on June 18, 2020

Make sure to leave it for 24 hours, and it will do the job for you!

by on June 17, 2020

It does what it claims to do. Excellent mastic remover

by on June 9, 2020

First time using this product. I used this product on a 351 square foot basement floor which had black mastic as adhesive. As directed I applied this remover and patiently waited until a small area was ready to be removed. I did not think a rubber squeegee would be an effective tool to remove the mastic, however I was able to remove everything and cleaned up with the greaser without any effort. I now have a smaller area that I need to start and have already purchased this product for the second time and have been recommending this to friends. The only tip I could offer to people who may been experiencing some issues is to wait a little longer before scrapping. My mastic was on the floor from 1954, some places were pretty thick, however everything came up with little effort. Highly recommended. Thank you Blue Bear...

by on May 12, 2020

WE had tile and Carpet glue on concrete floor for over 30 Yrs.( Before we bought the house). It definitely did NOT work like your videos showed. We had to scrap with ice scrapers and wire brushes , even after two coats. I will not purchase again.

by on May 9, 2020

So easy to apply, clean up, the smell is wonderful and it worked in one application! Highly recommend!

by on May 8, 2020

Doesn’t work. Ever since the EPA banned the only stuff that works, dichloromethane, nothing has worked. Looks like we have to start grinding our warehouses when we change the office layout.

by on May 5, 2020

This product is awesome. Got up the black mastic very well. So nice that there are no fumes or smell. I would highly recommend this product.

by on May 4, 2020

Removed black mastic.

by on March 25, 2020

Tried many different products with little to no results. This didn't work 100% but wow I'm impressed!!!!

by on March 13, 2020

For me, this stuff worked really well. I poured small amounts on the floor, spread it with a paint brush, cleaned it up with rags after the mastic dissolved, then applied and cleaned a second coat.

by on January 26, 2020

The Mastic Remover 500MR did not work for me. After placing the product on the floor and allowing it to set for 5 hours, it had no effect on softening the mastic. I would not recommend this product.

by on October 10, 2019

I did get the black, asbestos laden mastic off our concrete, but it took more than the application rates shown on the can or advised by the tech help. Once we removed the old tiles, there was a lot of mastic residue, and the concrete (put down in 1948) was not smooth finished, so it was embedded thoroughly. The mastic had no strong chemical odor, although we did use fans as a precautionary measure. I think it's a good product and would use it again, but hope to never again have to.

by on September 24, 2019

Greta product

by on September 19, 2019

Great product easy to apply.

by on August 1, 2019

I bought this soybean oil to remove the 60 year old black tar mastic that was holding down these strange thin 9 X 9 tiles to my concrete slab. It worked well. It also smells good and does not contain petroleum solvents.

by on July 16, 2019

I thought it was a little expensive at first, but I saved a lot on labor. My sister, 69 years old and myself 67, stripped about 500 square feet of mastic. I purchased a 5 gallon pail and still have about 2 gallons left. I put it on with a 3/4” nap roller, let it set about 2 hours. Kathleen used a 10” “blue steel” drywall tool screwclamped to a broom handle and I went behind her with a hard bristle brush. We used a squeegee to corral the sludge and most of the liquid. It was very slippery. A small pressure washer cleaned up the little bit remaining on the surface and it went down the drain. It was still slippery as snot until I mixed maybe 1/4 gallon of the degreaser that they recommend and swung a mop around like a sailer on the deck of a ship. No longer afraid of falling, we admired our clean floor. I should mention that I first rented a floor scrubber with a course pad. I did not use any Blue Bear Bean-a-Doo. When I turned the scrubber on in the middle of the room, it grabbed the dry mastic and drug me to the side of the room and threw me up against the wall. After another 5 or 6 times being slammed against the wall, I gave up and returned the monster to the rental store. After I was finished, I didn’t think it was expensive and I still have some left.

by on July 11, 2019

The product works good. If you dont use enough you'll just have a mess on your hands. Put it down, wait a couple of hrs for it to soften up then go back over and do a quick scrub to break things up. Add more if its not really wet looking. Come back around 10hrs later with an absorbant. Brush it back and forth till there is only a light residue left. Dont rush this part. Its not hard, just time consuming. Follow up with the degreaser, and a mop with a little more degreaser mixed in the water, very diluted. Admire your work. That part is mandatory!

by on February 8, 2019

This stuff WORKS! Used on black tile mastic applied on my concrete floor and the mastic just dissolved into a solution that could be cleaned up!

by on November 5, 2018

The best! We had a real mess from a water leak. Had mastic tile under the carpet. Product melted the mastic and allowed for a very easy clean up. The degreaser was used after to take up any left over mastic. The ceramic tile now has a better chance adhering to the cement. The google videos were really helpful. Thanks for having this product that over performs!

by on October 24, 2018

Great customer service. Will be shopping here more often. The product works great.

by on September 1, 2018

The product worked. The companies customer service was 5 stars plus. They were excellent to work with.

by on June 24, 2018

Excellent product excellent customer service

by on June 16, 2018

Customer service is excellent. I needed product right a way and they shipped last minute same day. If I could give 10 starts they woukd have it. Product is excellent.

by on May 3, 2018

While this product is great for smooth level floors this was a nightmare for me. I am currently renovating a old 1950’s home and my concrete floor is rough and has low points which made using this product extremely difficult and the end result was a sticky tar pit that was only able to be fixed by renting a mastic removing tool from Home Depot tool rental which honestly I wish I just did initially instead of wasting over $500 on this product. If I had to do it again I wouldn’t purchase this product and instead would just rent the tool from Home Depot! This was a very frustrating experience that I wouldn’t wish on anyone!

by on April 6, 2018

Product uses oil which is almost impossible to clean off concrete once it penetrates in its pores. This leaves you with an unadhesivable floor!

Customer Service on April 6, 2018

Hello Kristen, Please view the video that we provide on the product page, along with the product description, it shows that the product can be easily cleaned off with water and Franmar's Emerge Degreaser, This degreaser eliminates any oily residue that might be left over from the mastic remover. If you have any other questions, please don't hesitate to contact us at 888-226-2724. Thank you.

by on March 2, 2018

The product was even more effective than I imagined. It allowed me to safely remove black mastic containing adbestos, and I especially liked the fact that it did not produce offensive or strong odors. I would recommend this product to anyone!

by on February 21, 2018

It did make it easier to clean but the only mess afterwards was time consuming to clean. My husband and I had 5400 square feet of concrete to clean carpet adhesive off. I still had to scrape quite a bit. I'd say order a small bottle first to see how it works. It doesn't dissolve all adhesives.

by on January 15, 2018

Wow this stuff is amazing . I had about a 800 sq ft of 40 plus year old black mastic to remove . This stuff did the trick in just 2 hrs this stuff liquified the mastic a squeeged it into a puddle and kitty littered and shoveled it into a garbage can . I applied a second coat just to get some tough spots and to make sure I got all of it . I then used the degreaser and washed the concrete and shopvacuumed it . I have since stained and Seles the concrete it looks amazing thanks to this product I saved hours of back breaking work and not having to get this black mastic into the air just in case it had asbestos. Great product

by on October 27, 2017

This stuff works great and I love the fact that it's natural. I tried Goof-OFF earlier for this same job (getting rid of black mastic under vinyl tiles in my basement) and recognized quickly that I was literally using poison to try and fix my problem. So much better to have a soy-based product. Thanks, UnoClean for making the shopping process so easy and transparent. I had a helpful call with a service rep as well.

by on July 15, 2017

Excellent product and the company is great to deal with

by on March 24, 2017

Well,,, it does work but it is the worst project I have ever done before. This 3 bedroom home built in 1961 had 8" vinyl tiles every where over black mastic. It was all covered by carpet or tile. I got a price to remove it for $1800.00 and thought I could do it for that. I bought a walk behind grinder and 16 grit discs thinking that would work but they just gummed up. So I tried this product. I coated each area twice cleaning up twice and degreasing twice. Then only I could grind the residue clean. Labor intense! Now I have the 3 bedrooms left so I have to get more. It'll cost me another $400.00 and that is for the supplies only. Small grinder for edges, shop vac, scrubbing brush, squeegee, scraper, 4- 50lb bags of absorbent etc.

by on March 4, 2017

In the world of solvents, this is a miracle product. Basically turns the old black mastic into a liquid. Easy to apply; pleasant odor with no noxious chemicals; does not evaporate, unlike other solvents. Apply with yard sprayer; let sit 3-4 hours; squeegee into pools; use a shop vac to remove. The degreaser that comes with it does an excellent job removing any residue. Unoclean had the best prices and shipped instantly.

by on February 9, 2017

The black asbestos mastic just melted, the white mastic didnt melt but came up easy with razor. Wont clean another mastic covered job without it. Used about 1 gallon per 100 sqft

by on January 17, 2017

Works extremely well. Once applied to the floor, its low volatility keeps mastic in liquid form almost indefinitely. That way, it can be easily vacuumed with a wet/dry vac and disposed of. Pleasant smell, no harmful fumes, leaves a great smell after the job.

by on October 3, 2016

Works great easy to use. Everything delivered on time.

by on September 23, 2016

The concrete only restriction on the mastic remover was not communicated at time of purchase. Thankfully, Unoclean provided a return shipping label at their cost. Much appreciated.

by on August 31, 2016

Product did not work as expected or as listed. Shipment was on time but that was the only satisfying thing about the product. Wasted money and wasted time.

Customer Service on September 12, 2016

Hello Tony, We are sorry to hear that the mastic remover didn't work as you had planned. The manufacture stands 100% behind the product and we would like to get more information from you regarding your process and times you let the product sit. Did it budge a little? Since this is organic, sometimes the wait time may be longer on tougher older glues. If it did move a little that means it's working and they you will get results. we just need to adjust how much was put down or how long it sits. Please email me at [email protected] and I can assist you with getting your money back or working with the product. Thank you, Kate - Customer Service

by on August 29, 2016

Great product. I had to remove carpet glue (1000 square ft) on concrete. worked great and the best part no over powering fumes to deal with

by on May 1, 2016

Everything was just as it should be and it was a great customer service experience, which is something that is rare in this day and time! Thanks!

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