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ENVIRONMENTAL HAZARDS - INSPECT, TEST, REMEDY
AGE of a BUILDING - how to determine
AIR POLLUTANTS, COMMON INDOOR
ASBESTOS CEILING TILES, Asbestos-Containing
ASBESTOS & FIBER CEMENT ROOFING
ASBESTOS CEMENT SIDING
ASBESTOS DUCTS, HVAC
ASBESTOS FLOOR TILE IDENTIFICATION
ASBESTOS FLOORING HAZARD REDUCTION
ASBESTOS FLOORING REMOVAL GUIDE
ASBESTOS-FREE INSULATION MATERIALS
ASBESTOS IDENTIFICATION IN buildings
ASBESTOS LIST of PRODUCTS
ASBESTOS MATERIAL REGULATIONS
ASBESTOS PHOTO GUIDE to MATERIALS
ASBESTOS REMOVAL CERTIFICATION
ASBESTOS REMOVAL, INCOMPLETE
ASBESTOS REMOVAL, WETTING GUIDE
ASBESTOS RISK ASSESSMENT
ASBESTOS TESTING LAB LIST
ASBESTOS UNDER the MICROSCOPE
CEILINGS, DROP or SUSPENDED PANEL
CEILINGS & WALLS, PLASTER TYPES
CERAMIC TILE, ASBESTOS in?
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
FLOOR, CERAMIC TILE
FLOOR, CONCRETE SLAB CHOICES
FLOOR, CONCRETE SLAB POURED FINISH
FLOOR DAMAGE DIAGNOSIS
FLOOR, ENGINEERED WOOD & LAMINATES
FLOOR FRAMING & SUBFLOOR for TILE
FLOOR, KITCHEN & BATH OPTIONS
FLOOR, LAMINATE PLASTIC
FLOOR RADIANT HEAT Mistakes to Avoid
FLOOR, RESILIENT VINYL or CORK
FLOOR & SUBFLOOR MOLD, HIDDEN
FLOOR TYPES & DEFECTS
FLOOR TILE ASBESTOS IDENTIFICATION
FLOOR TILE HISTORY & INGREDIENTS
FLOOR TILE INSTALLATION DETAILS
FLOOR WOOD AGE TYPES HISTORY
FLOOR WOOD, DAMAGE DIAGNOSIS ;
FLOOR, WOOD ENGINEERED, LAMINATE, INSTALL
FLOOR, WOOD FINISHES
FLOOR, WOOD INSTALLATION GUIDE
FLOOR, WOOD MOISTURE
FLOOR, WOOD RADIANT HEAT
FLOOR, WOOD SOLID STRIP, PLANK
FLOOR, WOOD TYPES
FLOORING MATERIALS, Age, Types
INDOOR AIR QUALITY IMPROVEMENT GUIDE
INSULATION IDENTIFICATION GUIDE
PLASTER TYPE IDENTIFICATION
SAFETY HAZARDS & INSPECTIONS
WORLD TRADE CENTER 9-11 DUST PHOTOS
How to recognize roof or floor adhesive, mastic, or sealant that may contain asbestos. This article provides dates of manufacture of asbestos-containing adhesives, mastics, sealants, and includes photographs and text describing the appearance of such products.
While an expert test by a certified asbestos testing lab is required for sure identification of the asbestos content of most materials, we point out that some materials can be recognized as asbestos-containing by simple visual inspection, and others may be treated as presumed asbestos containing products based on the product type, age, and ./ or date of installation.
This article series answers questions about floor tile, sheet flooring, or roofing cutback adhesives or mastics that may contain asbestos.Does or did roofing mastic products & sealants contain asbestos? What are the hazards of demolishing or working on floors or roofs where asphalt-based asbestos-containing mastics, cutback adhesives, or sealants were used? Page top photo of black mastic floor tile adhesive provided courtesy of reader G.M.
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When was asbestos asphalt cut back adhesive manufactured and is there an easy way to identify it? I have a house that was built in the mid 1970s and there is black adhesive on the kitchen floor. There was sheet linoleum over it. - C.H. New Jersey, 12/5/2012
Reply: how to decide if flooring mastic, cutback adhesive or similar products contain asbestos
A competent onsite inspection by an expert usually finds additional clues that help accurately diagnose a problem or hazard from handling cut-back adhesive or mastic that may contain asbestos in a flooring application as well as in roofing mastics. That said, here are some things to consider:
Dates of Black Asphalt-Based Asbestos-Containing Cutback Adhesive
Cutback is the black asphalt-based adhesive that was frequently used to install vinyl asbestos tile, asphalt tile and vinyl composition tile.
We're uncertain of its precise history, but we found it mentioned in a 1937 patent for composite panel board,
Patent number: 4759799
Tan or Brown Latex-Based Tile Mastic / Adhesive - some might contain asbestos
Having examined asphalt-based adhesives used in floor tiles as well as in roofing mastics from a variety of installations, I cannot say that there is an easy way to recognize which contain asbestos and which do not simply by visual examination of the adhesive itself.
There are both dark and lighter tan tile or flooring adhesives that may look alike but be chemically very different - some can be softened by simple water, others not. However these related observations will be helpful:
Continue reading at ASBESTOS-CONTAINING MASTIC DANGEROUS? or select a topic from the More Reading links shown below.
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