500MR Blue Bear 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 test 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.
- Coverage: 100-200 sq. ft. per gallon
- Removes asbestos/black mastic, vinyl glue, ceramic mastic, traditional carpet adhesives
- Safe on Concrete
- pH Level: 6.5
- No Odor
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 UpClean 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 TestAfter 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 From The ProsUse a commercial sprayer or metal watering can to apply 500MR in large areas.
Protect floor drains and areas where product would naturally flow on uneven surfaces with sand, Oil-Dri, or kitty liter.
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.