If the mastic has been exposed to the open air for a long time, it may have a gray tint though. I’m now on the fence as to either removing it completely with chemicals or doing this epoxy floor coating. The surface is currently pretty smooth with a lock down on it. The mastic itself is pretty much paper thin, other than a few spots that are darker and seem like they might be a tad thicker, nothing is bumpy at all. Photo 8 – This photo shows that hand tools can easily turn non-friable floor tile into friable floor tile. If the adhesive is softened by water, then it should be removed by shot-blasting.
You can also use white vinegar mixed in with the water to further penetrate the adhesive properties of mastic. 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.
Sweep the concrete floor well using a broom and dust pan. Pour a small amount of natural oil-based adhesive remover, such as one containing orange oil, on a clean cotton cloth. Rub an 80-grit sanding block over the carpet glue. Sand in the direction of the wood grain so that you avoid scratching the wood. While there are different types of sealant available, one commonly used product comes from a company called Norkan.
The National Gypsum Company Bodily Injury Trust has paid more than $429 million in claims since 2004, including to victims exposed through Gold Bond adhesive products. 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. Asbestos felt was used along with adhesives in the floors of older homes.
Help:painting Over Asphalt Mastic
Now we plan to put down a moisture barrier and float engineered wood floors on top of the barrier. The abatement team scraped the floors but there’s some dark discoloration that I’m assuming is mastic. Should we just put down the moisture barrier and floors or do we need to seal the floor first?
- If you are a newcomer in this field, then you must take some precautions of applying black asbestos mastic under the floor.
- These are pieces of tile that remained stuck to the mastic.
- While all floors have some flexibility, a more rigid floor is necessary for strip solid wood floors.
- They are both popular choices because they were specifically developed to seal black mastic and its harmful contaminants.
- Browse other questions tagged floor or ask your own question.
- It wont generally stick to silicone sealants.
- Franmar Blue Bear 500MR is an AMAZING, hard working, professional mastic remover that really does the job!
- Wife is pregnant with our first child and does not want black mastic disturbed by scraping or grinding over asbestos fears.
I just have a lot of worries I guess, and I’ve been crying about this ever since I found out. I am absolutely NOT asking you for any medical/health advice or anything like that. I’m just trying to understand how worried I should be about this. 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’s no dust down there at all and the lock down seems to be hardening and less tacky now. I think I’m going to get this mastic actually tested and go from there. I’ve been searching the internet high and low for an asnwer as to how I’m supposed to seal this stuff completely. how to cover black mastic I mean, paint won’t do it (I’ve read) as it won’t adhere to the mastic and the mastic will bleed into the paint and turn the whole thing into a tacky mess. If that stuff was, in fact, ebony dust and hide glue, using much dust and little glue would keep shrinkage to a minimum.
It’s important when you work with it that you assume it does just in case so that you don’t expose yourself to asbestos if you break it or somehow cause the asbestos to become airborne. However, you will always want to check the product to see what the drying time is just in case. You don’t want to assume it’s a quicker drying time otherwise it can cause you to mess up a portion of your project. You don’t want to do this as this is a very costly mistake and usually involves buying more materials to fix. For example, if you are spraying a product like ABC over a porous surface, a mixture of water and the sealant at a one-to-one ratio will work perfectly.
Fine Homebuilding Magazine
You’ll end up with friable issues with the mastic all over again. Dose the old dried mastic need to be ground off or dissolved and removed first. All 9″x9″ tile has asbestos in it, I was told.
c) I cut and pasted an excerpt from I-floor.com explaining which flooring does best on the type of floor you have. a) With temperature and humidity variances in an Eichler, even a bamboo floor might experience cupping and warping. If you will be gluing down your floors without any vapor barrier, you’re just asking for trouble. Don’t let him tell you that the glue is a vapor barrier. It is extremely dangerous for you to remove the asbestos yourself, so have a licensed professional do it for you. Bag the sample in the bags that came with the kit.
Epoxy floors are durable and resistant to heat, rust, acid and salt. If you have a lot of the adhesive on your floor, the best option is to cover the older layer completely with a recommended resilient subfloor before applying your epoxy finish. Encapsulating black mastic is a sustainable solution in that unless it is disturbed there is no longer a health risk related to asbestos.
Most were already loose, the rest peeled up with ease. I was concerned about mold from the rainwater, so I dumped water with a little bit of bleach on the floors, opened the windows, and shut the door for a few days as it dried. Afterwards, I covered the floor completely with several big rugs, but the old black adhesive was still underneath. Another family member moved into that room for about a year. The floor was left as it was with the rugs covering it up. In conclusion, while asbestos-containing floor tile and mastic can be a daunting sight when working on a remodel project or a real estate transaction, they can be managed.
Thermoplastic Striping Paint & Graffiti Remover
So before you do anything with black mastic in your home, it is important to identify it and deal with it appropriately. Look to see if cracked tiles are black or dark gray underneath. If you have a cracked or missing tile and there is a black paste where the tile used to be, it could be asbestos.
Take care to choose a tile whose thickness is not going to create a problem, and choose a tile that is rated for floor use. Use a Portland cement-based adhesive to adhere the new tiles to the old. Spread a layer of adhesive remover over the mastic on the tiles with a foam paintbrush. You say your slab “sweats” you may have issues with any type of flooring. If this project is designed to spend as little as possible and just to cover the slab than i think your plan will be fine. Please spend the time and money to have it properly removed.
I already have the slab pressure tested , moisture content tested , so I went ahead. For those who still worry about moisture vapor from slab, there is product (Bostik MVP – moistoure vapor protection) to go with Bostik urethane adhesive to keep the moisture in check . Asbestos adhesive removal is best left to qualified asbestos abatement professionals, especially when old asbestos glue daubs have become friable . Buying or remodeling an older property can be exciting. However, one item that can be uncovered is vinyl floor tile installed before the late 1970s.
These kits don’t tend to be very accurate though, and they often can’t test mastic adhesive anyway. By the mid-1980s, almost 10 million gallons of asbestos adhesives, sealants and coatings were being produced annually. The rising tide of lawsuits over asbestos-related diseases, however, finally compelled most manufacturers to stop adding asbestos to adhesive products. In 1906, the Philip Carey Manufacturing Company began selling an asbestos-based fibrous adhesive for more general construction use.
How Do I Get The Shiny Spots On The Floor To Go Dull ?
Each product is different in how it should be mixed as well as how concentrated it is. Further, many black mastic encapsulation solutions provide different opportunities depending on how far you dilute. Chemical strippers should never be used as they can upset the integrity of the black mastic. Using chemicals that can break down the material can cause a release of asbestos into the air. The nature of black mastic makes it difficult to work with in certain situations.
Peel Away® Black Mastic Remover is considered to be one of the best and safest adhesive, glue, and paste removers, and it contains no hazardous citrus or chlorinated solvents. Sand the walls with sanding block to smooth it out lightly and remove any traces of mastic. Wipe the walls down, and survey the area for any cracks, holes, or uneven areas.
Don’t paint mastic especially if it’s still soft. It wont generally stick to silicone sealants. You can paint on builders/ decorators caulk if you need an internal filler. Even if the microscopic analysis is negative — you’ll need to be prepared for a more expensive BURN test. It is 80%+ likely you will have asbestos in the mastic.
Wear protective goggles to keep the asbestos particles out of your eyes, and rubber gloves to keep the residue off of your hands. Joining the team in February 2008 as a writer and editor, Michelle Whitmer has translated medical jargon into patient-friendly information at Asbestos.com for more than 12 years. She was quoted by The New York Times on the risks of asbestos exposure. World War II multiplied the demand for asbestos adhesives, especially in newly constructed Navy ships where fireproofing of all kinds was important. The U.S. military remained a top consumer of asbestos adhesives long into the Cold War, while civilian use also expanded. Many companies in the asbestos industry have established trust funds as part of bankruptcy reorganization plans to make settlements with claimants.
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. Black mastic usually lacks gaps, bumps and ridges.