This will knock some of the dust down and keep it from coming up into the air. in (0.32–1.27 cm) of floor tile out by dragging the blade into the tile at a 45-degree angle. Side view with supplied air island, door for drossing lead pot, access for burner maintenance, kettle, work opening and Dynacast. In the 1990s, for example, two engineers filed lawsuits against North American Refractories Company, claiming they developed mesothelioma using the company’s gunning mix.

Use a scaler, putty knife, or a chisel to remove it. Once you remove the gum, polish the underneath floor. Once you are done placing the tiles, cover up the open part with hard objects or the tiles left.

Sentinel 717 Thickened Mastic Remover Gel

While all floors have some flexibility, a more rigid floor is necessary for strip solid wood floors. Occasionally push away the adhesive slurry from the subfloor with a wall or floor scraper or squeegee to check for complete removal. Continue to use the floor machine, equipped with black pad, in the same area until the concrete subfloor is cleaned to the degree necessary for the new floor installation. Some people use heavy machinery to remove mastic and polish the floors underneath.

We also recommend the Novatex Max Duty Coatings Removal disk, which is our most aggressive remover and polisher, and it’s used with a hook and loop backing pad. Rip up the carpet, tile, or vinyl carefully using the appropriate technique. Don’t forget to also remove any nails in the floor. If you’re looking to make changes to the flooring in a commercial building or home, you’ll likely run into mastic. Mastic is more than an average glue-like adhesive, and removal of mastic can pose a challenge for anyone—including experienced construction workers.

Sentinel 747 Fresh Scent Mastic Remover

It’s a warehouse, the ceiling is slanted, we often bump into it, releasing dust. They are somewhat crumbly (still good considering their age!). Some wind can be felt too, which would help in spreading asbestos dust around. Me and my partner have been staying here for over a year. There are others in the flat but we’re the most exposed. I have another place to go but not my partner.

We do get a lot of questions on mastic removal, and a homeowner using a non-toxic and effective product with success is very good feedback. I’ll probably refer to your Bean e doo experience in the future. Tile needs a smooth, level surface to be installed on.


There are plenty of adhesive removal solvents on the market, but few can remove all mastic safely or quickly. It’s now owned by Franmar and sold under the name Blue Bear. They also have another version called 500MR mastic remover. Once all the black glue is gone, you will need to wash the floor and rinse it again to make sure any leftover residue is gone. As you can see in the video, the d-limonene citrus cleaner re-emulsifies the black glue.

Again, you will have to scrape and wipe up the now-dissolved inky muck, but it will speed up the process. The more times that you inhale asbestos fibres the greater is your risk of contracting an asbestos related disease . The first three of these diseases are terminal. The reason for the higher risk is the human body is not able to remove the asbestos fibres from the body once they have penetrated the lungs and become lodges there.

Gates are sequenced so only on is open at a time in order to provide air seal. Flanged for connection to dust disposal chute. When the HEPA vacuum is full, place commercially suitable water absorbent into the HEPA container until the adhesive slurry is absorbed. An absorbent material may be used on the slurry to absorb the adhesive residue.

Another person said lay a moisture barrier and laminate floor over it. To where other treads ive read suggest i immediately call a professional abatement company and have them remove it. Many contractors have made PerfectPrimer their go-to choice for dealing with black mastics. This product can be used in residential and commercial settings to safely cover asbestos black mastic. In addition, PerfectPrimer makes short work of any black mastic situation. Contractors can seal the black mastic, and move on with their project quickly.

He didn’t work with toxins or have any prolonged exposure. He largely worked in schools as an educator and later in his own office. Personally, I wouldn’t get anywhere near an asbestos flooring over black mastic product nor would I do any home improvements if asbestos were present in any form. It is best to have an expert evaluate and then hire professionals to perform a safe removal.

Bottom line is – proper removal for a truly clean surface is time consuming and expensive. The only thing I’ve found truly effective for getting up black mastic is, unfortunately, mineral spirits. FlexBond is an aggressive adhesive and will grab onto the cutback to ensure the next steps hold up properly over time.

Suggested Project Book

And you need to KNOW which is going to work for your particular job. The material is not cheap and it requires a basic knowledge of the product itself. Most professional floor layers will have this knowledge and know what to purchase, where to purchase it AND how to work it to enscapsulate the cut back adhesive. The removal of black mastic can be stubborn, so removing it is frequently a time-consuming job. Mastics can also be removed by grinding or shotblasting, but only if done by asbestos abatement certified professionals. Because of the risks and difficulties, contractors tend to charge a premium rate for this type of service.

Older mastic may be black or dark colored, which shows as residue when the flooring is removed. This high-strength, low odor mastic remover is created for removing black mastic on asbestos abatement jobs. Replacement is the quickest and easiest way to fix the issue. Just cut the treds to the same size as the materials you are removing.

In terms of asbestos materials, if the given material contains asbestos and it can be crumbled when rubbed between thumb and forefinger it is deemed to be FRIABLE. The alternative is to remove the glue with a natural product which normally comprise citrus and or soybean basis. That is such a scary thought that any home that has been around for a couple decades is vulnerable to asbestos. I definitely would not want any of it to get airborne during a renovation project. I’ll have to make sure that I get everything properly inspected so that I can keep my home safe.

The backing paper can contain up to 60% asbestos fibre and this can either be Chrysotile asbestos or Amosite asbestos. Older mastic might contain hazardous asbestos. There’s no way to know unless you have the material tested by a professional. Under no circumstances should you scrape or sand off the residue until you’re certain. This means the fine particles become airborne, and anyone in the area can inhale them.

This soaking will help loosen the paste so that it’s easier to chip away. Keeping the floor wet can also help prevent possible asbestos from being released into the air through dry dust particles. There are two main reasons that you would need to remove mastic.

To sum up, you need a brush, measurement tape, sand distributor, water, mask, hand gloves, and so on. Don’t ever try to know the black mastic smell. If the smell enters your nostril, you may feel inflammatory. Many types of flooring can be installed over old flooring provided the old flooring is flat and well adhered. Underneath the tile are streaks of a dark adhesive.

It can can cover two contractor bags 10×10 twice. After covering the area, a tarp or plastic bag was positioned over to keep the air out and the evaporation low. I used it in 65 degree and 45 degree temps, not much of a difference. I used a 4 inch scraper for better control and a hammer. I also used a Dewalt DW4772t grinder to take it all the way down and level the concrete.

Remember to always wear safety equipment when removing flooring and mastic—especially if the floor tests positive for asbestos. This includes a respirator mask, safety goggles, rubber gloves, and disposable suites. You can also try using a mastic remover, which dissolves the mastic into small chunks so it can be scraped up. However, these removers are often filled with chemicals, which is highly dangerous for workers. These solutions also make it harder to bond the new flooring on top. By the mid-1980s, almost 10 million gallons of asbestos adhesives, sealants and coatings were being produced annually.

Be aware that the manufacturer has to protect against future claims, so the advice given will be on the super-cautious side. Some of my tiles have loosened because water seeped under them . We did put in trenches and a sump pump, but I’m assuming we may someday get some water in again so don’t want to lay down flooring.

To make sure you and your family are protected, be sure to learn the steps to identifying asbestos mastic in your flooring. That’s a great question, will have to follow the replies here. We had at a prior residence with vinyl adhesive stuck to the concrete basement floor. We easily removed the avocado green 1970s sheet vinyl but adhesive were a significant problem. You can also use white vinegar mixed in with the water to further penetrate the adhesive properties of mastic.

At present, the engineers try to get a change in the color but it provides not a good result. Find the best black mastic for your floor from the local market. Taking help from the expert would be talented in choosing the suitable one.

  • You might want to leave the covering of the old flooring to stay in place or cover it with new flooring.
  • I specifically asked him about where we might expect to find asbestos.
  • I removed tiles from a bathroom and then used Bean E Doo to get rid of the mastic.
  • After soaking the gum on water or vinegar, it will be easy enough to chisel it off.
  • Floor tile in this condition is friable and regulated by MDH.
  • I am concerned that skim coating may cause it to swell.

In my prior position as an asbestos microscopist, the vast majority of 9” x 9” floor tiles I analyzed did contain some asbestos, typically in the 1-5% and sometimes the 5-10% range. In rare cases, the 9” x 9” tile did not contain asbestos. In cases where the tile is not asbestos-containing, one item that is overlooked is the underlying glue also known as mastic. Mastic that is black in color is a “primary suspect” for asbestos-containing materials much like the 9” x 9” vinyl floor tiles. From my laboratory experience, old black mastic often contains 1-5% asbestos.

The danger is hidden out of sight and out of mind. It is only if you expose the mastic that you need to caution yourself. While most companies now use alternatives to asbestos adhesives, their use is not banned in the U.S.

Sand paper can be moved slowly to the bucket because it has the dust in it , and new used over and over. Use a mask on face keep mouth closed while working etc . The bean e doo re activates the mastic, so if you dont get every little bit of it youll regret it because it will stay tacky.

Source: homemakerguide.com