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Fiberlock ABC Asbestos Encapsulant discussed & cite at InspectApedia.comAsbestos Material Sealants & Coatings

Asbestos-containing roof, wall, floor, or insulation encapsulants & paints

  • POST a QUESTION or COMMENT about sealants, coatings, and lock-down sealers used to control release of asbestos particles, dust, fibers

This page lists sealant paints, sprays, knock-down & lock-down coatings suitable for asbestos insulation, asbestos lagging on boilers, spray-on asbestos fire insulation, asphalt or vinyl asbestos flooring or exposed asphalt-asbestos flooring mastic adhesive, and for cement asbestos or transite pipe products.

Page top photo: Fiberlock ABC Asbestos Binding Compound cited in the article below.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

- Daniel Friedman, Publisher/Editor/Author - See WHO ARE WE?

Encapsulants, sealants, coatings used on Asbestos Containing Materials

Clear Fosters 4051 encapsulant spray (C) Daniel FriedmanHere we list & describe products used to control or prevent the release of fibers, dust or particles from asbestos containing materials (ACM) such as asbestos pipe or boiler insulation, asbestos-cement products such as transite ducts, pipes, chimneys, and asbestos-containing flooring such as asphalt-asbestos or vinyl asbestos floor tiles or sheet flooring.

The list includes a range of ACM coatings and treatments such as sprays for sprayed-on asbestos fire insulation and sprays or coatings to lock down any remaining dust or fibers on and in a building following an asbestos removal or remediation project.

Some of these sealants and coatings are useful for dust and particle control beyond asbestos, such as in mold remediation projects or other general building clean-up projects following a fire or flood.

Photo above: Fosters 4051 clear sealant used on wood surfaces following an asbestos or mold remediation job.

Watch out: for any sealant or coating to be effective in both preventing future particle or asbestos release into building air AND where necessary, to bond with new layers of material such as adhesives for flooring or ceiling tiles or even a finish coat of paint, the surface to be sealed must be clean of loose debris and dry.

If you are planning to paint a floor covered with asbestos floor tiles using an epoxy paint, as described

at ASBESTOS FLOORING LEFT IN PLACE,

you'll also need to strip any waxes from the floor surface.

See STRIPPING a FLOOR BEFORE SEALING

Sealant Paints & Coatings for Asbestos Containing Materials: Sources, Instructions

Chemsafe asbestos encapsulant or lockdown from Aramsco cited & discussed at InspectApedia.com

Fiberlock ABC Asbestos Encapsulant discussed & cite at InspectApedia.comIllustration: Fiberlock ABC Asbestos Binding Compound - Clear Encapsulant, sold widely. Product description excerpted from norkan.com a Fiberlock product distributor.

ABC Asbestos Binding Compound, our flagship product, is the world's most successful encapsulation solution. This highly effective, industry-standard, high-solids encapsulant meets Environmental Protection Agency guidelines.

It's ideal for sealing in asbestos-containing material, as laboratory tests have shown. The EPA recommends you apply two coats for maximum effectiveness.

... The high solids, nonflammable composition of A-B-C allows for dilution with water to provide maximum flexibility for specific asbestos abatement needs, including removal/lockdown, penetrating encapsulation and bridging encapsulation.

Since 1978, A-B-C has provided exceptional long lasting performance in asbestos abatement worldwide.

Asbestos cement encapsulant coating Aquaflex from Mapei - cited & discussed at InspectApedia.com

PerfectPrimer(R) asbestos encapsulant coating from Specialty Solutions Mfg. Inc., www.perfectprimer.com cited & discussed at InspectApedia.com

Above: PerfectPrimer® from Specialty Solutions Co. The company says that you can paint this primer over asphalt tile mastic and that it will then accept new flooring overlay.

 

Readers and product suppliers are welcome CONTACT US by email to suggest additional products to this list and to provide technical literature on product use and effectiveness.

In order to absolutely assure our readers that we write and report without bias we do not sell any products nor services, nor do we have any business or financial relationships that could create such conflicts of interest.

InspectAPedia is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information for the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website.

...


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Reader Comments, Questions & Answers About The Article Above

Below you will find questions and answers previously posted on this page at its page bottom reader comment box.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

On 2023-02-04 by Paul - What do I use to seal black mastic left after removing old floor tiles?

black mastic under flooring (C) InspectApedia.com Paul

Hello. What product is recommended to seal a black mastic that was under the old vinyl tile.

Also, do I need to seal entire surface of the room or just the black mastic?

On 2023-02-04 by InspectApedia Publisher

@Paul,

Using the on-page InspectApedia search box found above and at the top of each of our pages, a quick search for

"asbestos encapsulant paint" or "asbestos sealant" finds our best advice in answering your question - better than an off-the-cuff reply here:

please see

ASBESTOS ENCAPSULANTS & SEALERS (this is the page you are now on)

and let me know if, after reading that, there's more that we should add or clarify.

Eventually we will also move your question and our reply to that same article so that it may help other readers on this topic.

 

Do I need to seal an outdoor asbestos pipe?

Transite cement asbestos pipe at an apartment (C) InspectApedia.com DanielHello, is there any danger if there is an asbestos pipe outdoors, around 2 metres away from the window or in the terrace of an apartment?

I show you some pictures. There are 2 long pipes, from the neighbouring building, and they show some wear. This is in the last floor of a 3 stories building, and it is outdoors. Would it be enough to just never open that window and never use the terrace? Or can they be used safely?

I might rent this appartment. Should I better not rent it? I am worried that some asbestos might come in through the window. - On 2019-08-28 by Daniel

This Q&A were posted at and are discussed in more detail

at TRANSITE CHIMNEYS

Reply by (mod) - paint or seal transite cement asbestos pipe in poor condition and in traffic areas

Daniel

With the reclama that nobody can make a risk assessment for environmental exposure to hazardous materials simply from a brief e-text and some photos, I see what looks like transite - asbestos-cement pipe in some of your images and in some spots the material is deteriorating, flaking, or delaminating.

It's not likely that, left un-disturbed, there would be much airborne asbestos from a cement-asbestos product unless it's being demolished, chopped, sawn, ground, etc. but there can be ground-level hazards from accumulated cement-asbestos dust

See ASBESTOS ROOFING / SIDING POWER WASHING for an example of that concern.

It might make sense to at the very least seal the exterior of the transite pipe flue (or whatever it's being used-for) where it's located in a traffic area such as at a deck.

Reader follow-up:

The Fiberlock product that was suggested to me is Fiberlock ABC Asbestos Binding Compound. I'm not sure how it compares to PerfectPrimer. I've seen a video of the latter product and it shows a workman painting right over black mastic. That's what remains on my concrete floor where the loose tiles were removed.

I'm very aware of your warning that for effective bonding to take place the floor needs to free from dust, debris, and a variety of other things. I'm trying to figure out how to clean my floor without exposing myself to asbestos fibers.

I'm looking at using a P100 mask. That will mean shaving my beard for maximum effectiveness. I thought of buying a HEPA vac but I've read that the debris should be wetted down and removed without using a vacuum. There is also the issue of what to use to fill the spaces left by the missing tiles. If new tiles are used there might be a bonding issue with the primer/sealer.

Reply:

You may have already applied a Fiberlock™ sealant but on thinking about this further it occurs to me that if you intend to install new vinyl floor tiles there is probably no need to first apply a sealant at all.

You'd simply use an adhesive mastic that's compatible with the remaining black asphaltic mastic already in place and glue tiles right over it.

While there's often asbestos in the mastic adhesive, it's not friable. One would simply clean the surface of all loose debris, perhaps damp wiping, and when dry, adhere the new floor over the old mastic.

That would avoid the worry of needing a very good double bond of Fiberlock to old mastic and new floor tile adhesive to the Fiberlock.

Do keep me updated on how this project goes.

On 2020-10-27 by George - Rather than hire an asbestos abatement company I did it myself

I have a small 10’ x 12’ room that had 9” x 9” asbestos tiles. I had the tiles and mastic tested at a lab. Results came back 1-3% Chrysotile, 0% Amosite in the black mastic, and 2-3% Chrysotile, 0% Amosite in the tile.

Rather than hire an abatement company I did it myself, and perhaps took more precautionary measures than necessary due to it being only Chrysotile, and a low percentage at that with a short exposure time.

I sealed the entry door and air duct vent in the room with plastic, used a hazmat suit rated for asbestos work, wore a full face respirator with P100 filters, and opened the window (left open for 2 days).

Most of the tiles came up very easily, and some tiles were quite friable, as they crumbled fairly easily.

As I removed the tiles, I sprayed some of the smaller/crumbly pieces down with a water/dish soap solution to prevent dust, but it still got a little dusty in there. I then bagged up all the tiles and placed them in a garbage bin outside of the room's open window.

What was left was black mastic on a wood sub-floor. I put MBP Multi-Surface Bonding Primer (from Home Depot) over the mastic floor (see attached picture). I realized after the fact that I should've used "Perfect primer", but it's too late. The MBP primer after drying has a rough gritty texture to it. The product is actually intended for creating adhesion to ceramic tiles or other cement-based flooring.

To my question...

I want to clarify what I read above on this page that: I can put floating Vinyl Plank Flooring over the wood floor that has the black mastic over it. Will this provide adequate protection from the mastic underneath? I will also be putting a layer of interlocking gym padding over the vinyl planks so that we may use the room as a home gym.

Here is a link to a white paper and the most informative document I have found regarding health risks from different types of asbestos, particularly, Chrysotile:

sibility of those particles moving up into the occupied space.

Add to that that mastic, an asphaltic coating that contained asbestos fibres, is not normally friable.

On 2020-10-27 by (mod) - sealants & new flooring layer over asbestos-suspect flooring mastic adhesive - DIY Asbestos abatement, Chrysotile hazards?

George

In my opinion, any covering flooring that is continuous and secure ought to minimize the risk of remaining mastic on your floor, especially if under the engineered flooring you describe you've already got a layer of primer.

Nobody can know for a fact what an un-built anything is going to do, but in general, in my OPINION, the combination of covering the remaining mastic with primer and then with an interlocking plank flooring means that there ought to be minimal movement to disturb the mastic and even less possible.

About the Bernstein Article you cited,

Really? We have provided a copy of the Bernstein et als article, above as a PDF download; See also the following comments that are quite critical of the article above and its conclusions - Ed.

Really? and critical of the criticism:

 

Should I paint my old asbestos vinyl floor tiles before covering with new flooring?

I removed carpet in a 10x12 room, found old vinyl tiles. Some of them are broken at the edges and some are loose.

I intend to cover with new cork flooring. Before that I'd like to know if I should paint with something like fiber lock 2 or perfect primer, in case of asbestos. Sorry for the long post. Thank you. On 2019-12-1 by John -

Reply by (mod)

John

A typical cover-over job with new floor tiles atop old asbestos-suspect flooring requires that the existing surface be generally smooth and sound - that is, loose tiles are not popping up, and there are no abrupt dips or holes that might telegraph up through the new flooring.

If you're covering with a laminate or engineered wood or wood floor then those small imperfections are unlikely to have any effect whatsoever; you'd just lay down rosin paper or whatever underlayment or vapor barrier the new flooring manufacturer recommends, and proceed.

If you're covering the old floor with sheet vinyl, thin new vinyl floor tiles, or soft cork tiles, you may want to glue down replacement tiles of same thickness of any large sections of tile or flooring that are already missing, OR to use a floor leveling compound.

When your new floor is to be glued or adhered with tile mastic to the old one, the old surface needs to be clean of dust, debris (damp wipe, HEPA vacuum), and clean of any floor wax. I use a liquid stripping compound, NOT any abrasives.

For this type of installation, several of the mold and fire and asbestos abatement coating manufacturers recommend products that bond well to the existing floor and are claimed to accept and bond well to the adhesive used on the new floor.

As we noted on this point in the article above

you may want to see ASBESTOS ENCAPSULANTS & SEALERS - coatings, encapsulants, fiber release control for asbestos containing materials

Comment by Jason FIner - Perfect Membrane sealer for asbestos-containing floor tiles or mastic adhesive

John & InspectApedia moderator:

You are correct that the floor must be clean and smooth with loose tiles removed. I have been using perfectprimer for years for these applications. All I do is clean the floor s with someTSP solutions and water. Then apply two coats of perfectprimer.

If you want to apply some leveling agent, like rapid set or thin set etc, then apply it over the first coat perfectprimer, then apply the second coat of the primer over the entire floor and patched area.

Any paint or epoxy or mastic will bind with that and your finished.

If you need to do a full blown encapsulation or waterproofing system, then I use perfect membrane by the same company (Specialty Solutions) - On 2020-02-20


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Citations & References

In addition to any citations in the article above, a full list is available on request.

  • Roger Hankey is principal of Hankey and Brown home inspectors, Eden Prairie, MN. Mr. Hankey is a past chairman of the ASHI Technical Committee and the ASHI Standards Committee. Mr. Hankey serves as co-chairman of ASHI legislative committee, and has served in other ASHI professional and leadership roles. Contact: 952 829-0044 - hankeybrown@comcast.net
  • Ervin McKinney, a gas industry expert in Lorain OH, kindly provided this PDF copy of 1948/1949 Underwriters Laboratories UL List of Inspected Gas, Oil, and Miscellaneous Appliances. October 2010
  • ASBESTOS IN YOUR HOME U.S. EPA, Exposure Evaluation Division, Office of Toxic Substances, Office of Pesticides and Toxic Substances, U.S. Environmental Protection Agency, Washington,D.C. 20460
  • "Handling Asbestos-Containing roofing material - an update", Carl Good, NRCA Associate Executive Director, Professional Roofing, February 1992, p. 38-43
  • EPA Guidance for Controlling Asbestos-Containing Materials in buildings, NIAST, National Institute on Abatement Sciences & Technology, [republishing EPA public documents] 1985 ed., Exposure Evaluation Division, Office of Toxic Substances, Office of Pesticides and Toxic Substances, U.S. Environmental Protection Agency, Washington,D.C. 20460
  • In addition to citations & references found in this article, see the research citations given at the end of the related articles found at our suggested

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