As long as the glue is wet and you don’t create dust, you can remove this stuff. You’ll just need to find out where you can dispose of it legally. There was two different kinds of black mastic. In the past (pre-1980?) cutback adhesives often included asbestos. Of course if it’s not getting into breathable form, it’s not going to hurt you.

• I know weird name, it’s made of soy beans and it removes the black mastic keeping the asbestos non friable.
• We had waterproofing work done but the chance that water may come into this area in the future made me wary about putting down sheet vinyl.
• that was for 2 layers of 3/4″ ply. You are using 3/8″ ply so the shorter staples do not great holding power.
• I wouldn’t have been able to leave the tile alone once I figured out I could pop them up so easily.
• It is best to have an expert evaluate and then hire professionals to perform a safe removal.
• It might be best to have that tested before sanding.
• Bottom line is – proper removal for a truly clean surface is time consuming and expensive.
• It should also be remembered that the removal of asbestos-based resilient tile requires very different handling and the comments above do not apply to such installations.
• If the mastic has been exposed to the open air for a long time, it may have a gray tint though.

It is possible to have results that fast if a prior arrangement were set up with the laboratory or if samples were read onsite. The HEPA air scrubber or negative air machines would continuously run even after samples were collected until the area has been determined to meet clearance criteria. At that point, the machines would be turned off. In some cases, it can contain asbestos, but usually in rare circumstances. The best way to tell is to have the material sampled by a licensed professional.

How Dangerous Is Black Mastic?

Sadly, asbestos is still legal in the US and Canada, but most other countries banned this material years ago. It is true that once asbestos is released into the air, those microscopic particles can stay there for years and years and years. But I do think once it’s done, I’ll still order an air quality test just to be on the safe side. 🙂 If it were just me living there, I’d probably not really worry about it. But since Matt will be there, and he’s already dealing with compromised health, I’d rather err on the side of caution. While black may be the noticeable color of the black asbestos mastic, it’s impossible to see the real color.

The level of dilution will allow the sealant to penetrate deep inside of the material thus locking in the dangerous fibers. Removing black mastic should not be seen as a DIY project. There are many laws outlining precise methods for its removal. Because it is the fibers from these materials that can affect serious harm, any damage to black mastic could mean that fibers are more susceptible to becoming airborne. If you are one of the millions who have discovered the existence of asbestos in your home or business, you likely know how unsettling black mastic can be.

How To Strip Epoxy Paint Off The Cement Floor

By opting to seal old black mastic, property owners can avoid the risk associated with removing black mastic and still effectively prepare their flooring for new coverings. Once the black mastic is sealed, the floor can be coated with epoxy, painted, or adorned with any other flooring material like hardwood, tile, or carpeting. Containing between 15- and 85-percent asbestos, black mastic adhesives flooring over black mastic were manufactured mostly in the first half of the 20th century. However, some companies produced asbestos adhesives as late as 1984. Therefore, if your house was built or remodeled around 1984 or before, there is a chance that black mastic adhesive on your floor may contain asbestos. I do think it takes more that just a one-time exposure to it in order for it to pose a serious health risk.

But if you’re concerned about it, you can always have an air quality test done after the renovations are done. I know there’s a way to clear the air, so to speak, but I don’t really know what it entails. I’d be willing to bet that your house will be just fine as far as asbestos goes, though.

Using Vinyl Floor Adhesive With Self

You should never remove asbestos tiles yourself. The safe way to remove the tiles and the glue is with a floor scraper and warm water. Scrape the residue left after popping up the tiles – don’t sand it. If sanding is required the services of an abatement contractor should be enlisted. I had some old linoleum tiles in my basement and they too were coming loose. I did not have black mastic underneath them but some yellow snot-colored stuff, so I didn’t have the exact same situation.

Then, place the first bag in the second bag to keep any residue out. The spray bottle will make it easy to knock down any dust down while you’re removing a sample. Put on a respirator, rubber gloves, and protective eyewear.

Is Mastic Adhesive Dangerous?

However, as required by the new California Consumer Privacy Act , you may record your preference to view or remove your personal information by completing the form below. Special cement adhesives, often called “furnace cement,” are required for installing and repairing machinery that operates at high temperatures. Asbestos was a primary ingredient in fireproof cements and joint compounds, especially in industrial facilities and ships. “Lagging” is a way of sealing and insulating pipes with strips of cloth soaked in adhesive, and asbestos-containing materials were once standard for this purpose.

I’ve removed the old vinyl tiles from the basement, and I’m left with a black mastic. And use the suggested primer, ARDEX P 82TM Ultra Prime? I know this is old but it’s what I’m looking for. I’m trying to seal over concrete with a thin coat of black mastic or cutback and leave it as the finished floor. The best alternative to removing black mastic is to seal it. Many contractors prefer to seal black mastic because it is safer, more affordable, and much easier.

I am concerned that skim coating may cause it to swell. So should I just remove the underlayment and start over from the sub floor with new underlayment or skim coat and install my flooring? I would not recommend plywood subflooring because of the possibility of moisture/condensenation and future mold. If you really want to encapsulate it, skim coat it with some sealer. By the time you apply a new glue and floor, any fibers are most likely going to be “permanently” bonded in there and unable to get out. Chopping is bad and fast movement is bad when it comes to there being possible asbestos in there.

But now that you have ripped up the old carpet youve got a sticky situation. How to Remove Mastic From Tile Spread a layer of adhesive remover over the mastic on the tiles with a foam paintbrush. Allow the adhesive remover to soften the mastic. Scrape the softened mastic off of the tiles with the utility knife. Wash the remaining mastic and adhesive remover off the tiles with a sponge dipped in warm water.

Can Carpet Tiles Over Black Mastic

While you’re cutting, mist the area continuously with the soap and water as well. Check to see if the discoloration has an oily texture. Due to the asphalt used to produce asbestos mastic, the adhesive often has an oily shine and texture.

I googled to find out what they were talking about and was hit with all this information about asbestos in the tiles and adhesive. I’ve never owned a house, so I didn’t know anything about it. Hello everyone, I am putting new kitchen/family room flooring in the house my parents built in 1961. My situation has become much like the previous posts. The one difference is the was put on a pressboard which is still sound.

Top view band saw, hoods, removable table, conveyor, exhaust on saw housing to fan. Front view of band saw, hood, removable table, conveyor, and bucket. Clean out saw housing every day using vacuum. Side view with grate and swivel shelf holds plates for parting. Build rack with solid plywood sides, open front and internal racks butt up against hood with cleanout door. Isometric view of detail A plate take-off hood with conveyor from oven, belly bar and equipment enclosure.

I was hoping you could tell me if this was a dangerous situation to be in or if it counts as a limited, short-term exposure type thing. There was never any cloud of dust and I never chiseled at the tiles or adhesive to get it up. But it worries me that maybe it was lingering in the air or something? For the scenario where someone takes off tiles and wants to just seal the glue rather than scrape it off. Leaving the Black mastic is not a good idea at all it can give a asbestos release when walked on. Second The new mastic’s do not bind well with the old mastic and my seep through your new floor leaving you with a constant clean up off asbestos mastic seeping through.

And the second reason is the concrete patch showed through still after our first coat. ♦ Pour a 1/4 cup of paint thinner or turpentine directly onto the adhesive and leave it for 10 minutes. Some adhesives will respond to these cheap solvents. ♦ Saturate an old towel with plain water and lay it on the floor for twenty minutes.

Side view of storage table with grating, baffle and clean out. Isometric view of rotary stacking table showing grated surface. Side view showing plenum, slots in side-draft hood and point a. Top view showing hinged door, platform rotates for stacking and hydraulic pusher moves skid to conveyor when loaded. Top view of combined supplied air island and exhaust. Side view with rotating hopper, plastic sheet around three sides of the supplied air island , with coarse screen and exhaust.

Homeowners should consider another alternative rather than attempting this type of project themselves. I too just like some of the others, pulled up, actually scraped up an entire kitchen floor of old tile. I was more concerned about the old sheet linoleum that was under the vinyl tile.

It’s very dust like but some of it sticks to the floor but easily comes off with a sponge and water. Floor covering people don’t like these because the chemical agents tend to leach into the concrete and make future floor mastics less likely to bond. It would get the stuff off, however, it makes a really gooey and sticky sludge that will ruin just about everything it touches . Which, at that time, the concrete floor was poured sloping for drainage, tile heated to bend and adhere to it.

The grinder can make the mastic gummy and ineffective, ya have to get the mastic pretty low to the concrete for the grinder to work. Buy a full length floor scraper at the home improvement or hardware store, use a solvent and ventilation; and you can remove the problem. It is very hard to seal, and will bleed dark color through the paint, and is usually an adhesion problem. For coating over VCT tiles or coating over the black mastic if you removed the VCT tiles, purchase our Special Primer in addition to the basement epoxy floor kit. We would recommend you do two coats of the Special Primer to ensure good coverage.

Floor tile in this condition is friable and regulated by MDH. These are pieces of tile that remained stuck to the mastic. You may have heard many homeowners state that black mastic is safe, while most abatement companies declare it unsafe. It can be confusing for any resident since these abatement companies make a living by detecting and removing asbestos from buildings. Black mastic is safe when you do not disturb the flooring. If you are planning to remodel your home and change the flooring tiles, you might come in contact with friable asbestos that is highly toxic.

It is black, but Advanced Deconstruction experts report seeing traces of other colours in the mastic. Some of the older adhesives used were also black, but they did not contain asbestos. Therefore, you cannot use the colour as an identifying trait. There is more to black mastic than the shade. You must check the material for its flatness.

Stapling carpet over the new treds is a simple venture. For the concrete floor, I’d look at the all vinyl plank flooring that is a peel and stick. At a buck a foot at Lowes, it will give great results pretty quick at not a lot of money. The installer has removed the carpet and the vct tiles and scraped as much mastic as possible but there are still stubborn black mastic on the slab. Should the tile get wet the mastic may soften negatively affecting the bond of the tile to the substrate. Since this is a bathroom, why not return the vinyl tiles and install ceramic tiles?

And as is pointed out above, it’s prolonged exposure that gets you, not short-term. If the levels are above the safe zone, call the inside air cleanup people and have them do what needs to be done to remove it. So yesterday, I decided that worrying wasn’t really accomplishing anything. So I gathered up a sample of the tile and a sample of the adhesive and took them to the asbestos testing place here in town. After soaking the gum on water or vinegar, it will be easy enough to chisel it off.

Pour a small amount of a cheap laundry detergent mixed with hot water onto the floor. Some tar-based adhesives will dissolve or soften in the presence of soap. After that you will have to chisel off the mastic. You can use a hammer and a chisel for this job. Wait for the test results before removing or covering the tile.

Source: homemakerguide.com