Perfo-lyte is brand name wallboard plaster that was manufactured by the National Gypsum Company and was a part of the Gold Bond line of products. Wallboard plaster was used during construction as an insulation material and contained asbestos fibers due to the material's durability and flame-retardant properties.

Asbestos Wallboard Plaster

Plaster is a paste that is used as a fireproofing material and is applied to building materials such as wallboard. Wallboard plaster is applied to the interior of homes or commercial buildings to soundproof rooms and provide protection in the event of a fire.

Plaster works to slow the spread of fire as it releases water vapor when exposed to flames. The material also reinforces steel supports to prevent a structural collapse. Wallboard plaster was made of mineral wool, cement mixtures combined with mineral wool or gypsum plasters.

Asbestos wallboard plaster was commonly placed in ceilings and walls and is difficult to identify by sight alone. To determine the presence of asbestos-containing plaster, the following may be performed:

Determine the date the building, home or office was constructed
Look for plaster that is disintegrating or damaged
Take a sample of the plaster to be tested by lab professionals
Contact an asbestos abatement professional to remove plaster materials

Asbestos wallboard plaster that has been disturbed may allow asbestos fibers to become airborne. Drilling, sanding or cutting asbestos wallboard can release asbestos fibers into the air, allowing constructor workers or anyone nearby to inhale or ingest the fibers.

Asbestos exposure may also occur during the installation or removal of wallboard plaster and renovation or demolition work may also disturb the asbestos materials.

Gold Bond Perfo-Lyte

Gold Bond Perfo-lyte was a popular insulation material during the mid-1900s. This product is no longer manufactured but may still be present in homes constructed before the 1970s.

The National Gypsum Company also manufactured other Gold Bond asbestos products such as:

Drywall
Siding
Joint compound
Cement
Adhesives
Permaboard
Texture paint

Intact Perfo-lyte board is not considered to pose a health risk. Asbestos wallboard that has broken or crumbled may allow asbestos fibers to become airborne and should be removed.

Commercial buildings such as schools and businesses must meet national safety standards during the removal of asbestos wallboard. Homeowners are not advised to remove asbestos materials by themselves and should contact a professional asbestos abatement team to remove the hazardous materials.

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The information provided by The Mesothelioma Center is not a substitute for professional medical advice, diagnosis or treatment.
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