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Blue Bear 500MR Mastic Remover For Concrete, Bean-E-Doo, Soy Methyl Ester, 800103

List price: $300.00
You save: $61.00 (20%)

Franmar Blue Bear 500MR Mastic Remover. Ideal for use in occupied areas like post offices, schools, hospitals and other public places where safety is important. 500MR removes newer mastics, layered adhesives and even glues 50+ years old, using the power of soybeans. It’s the first product to pass both performance and environmental safety tests by the USPS for the removal of mastic containing asbestos.

Contractors find that 500MR works more efficiently, saves time, and helps create a safer restoration site compared to traditional hazardous chemical mastic removers.

Tackle remodeling an old concrete surface covered with old mastic and adhesives like a pro. Blue Bear Mastic Remover for Concrete Surfaces is an effective green choice to easily remove old black mastics under tiles and glues and adhesives under carpet. Home owners can safely restore concrete back to a smooth surface for creative decorating.

*Formerly Bean-e-doo Mastic Remover.


  • Effectively removes newer mastics, layered adhesives, even 50+ year old glues
  • Virtually no odor
  • Less than 3% VOC
  • Made with 100% American grown soybeans
  • GHS compliant
  • Biodegradable
  • Removes asbestos mastic, vinyl mastic, ceramic tile mastic


  • Coverage:  100 - 200 sq ft (9 - 18 sq. m) per gallon
  • Color:  Light yellow
  • Odour:  Mild odour
  • Flash Point:  Above 425°F (218.33ºC)
  • VOC:  2.3%, .06 lb/g, 20 g/l
  • Ingredient:  Soy Ester
  • pH:  6.5
  • Package size:  5 Gallon Pail
  • Ready to use:  Yes
  • Product Number:  800103

Product Application

Apply 500MR Mastic Remover directly on the concrete surface. Spread 500MR around with a straw broom, long handled brush or squeegee using light pressure. If applying to mastic with trowel ridges, cover all trowel ridges with product. Allow 500MR to sit until mastic softens. (Generally asbestos/black mastics will soften in 1-2 hours, and vinyl or acrylic mastics will soften in 4-8 hours.) After mastic has softened, remove with a long handled scraper or squeegee. Reapply if necessary.

Clean Up: Clean remaining thin residue with BLUE BEAR 700DG Degreaser or water using a scrub brush and/or mop or power washer. Allow surface to dry before further preparations.

Residue Test: After rinsing, apply water to various small areas on the concrete and rub with fingers. If water turns cloudy white, it indicates there is 500MR remaining on the surface. Repeat clean up steps and retest.

Usage Tips: 1) Use a commercial sprayer or metal watering can to apply 500MR in large areas. 2) Protect floor drains and areas where product would naturally flow on uneven surfaces with sand, Oil-Dri, or kitty liter. 3) A rotary floor machine used on a low RPM speed helps during the water/degreaser clean up steps. Use only after scraping up softened mastic. DO NOT USE ON WOOD SURFACES.

Coverage Area:
100 - 200 sq ft / gal
Package Size:
5 Gallon Pail
Ready To Use:
  • Yes

Product Data Sheet (800103_beanodoo_pds.pdf, 3,405 Kb) [Download]

SDS (Safety Data Sheet) English (800103_beanodoo_sds_eng.pdf, 337 Kb) [Download]

We had a concrete floor covered with a very tacky non setting adhesive that required removal and the use of high VOC cleaners and solvents was out of the question
The product has the colour and consistency of canola oil, and very little odour which is not offensive.
We were surprised how effective it is and used a pump garden sprayer and stiff broom to spread it. Left for a few hours to soften the adhesive and then used a long handle metal scraper and sawdust to soak everything up. This product made a potentially time consuming laborious job into a relatively easy one.
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