STYROFOAM SHEETS SERIES

Of filler, such as calcium carbonate, clay, asbestos, etc. Thermoplastic polystyrene laminates are disclosed, one of the layers of which comprises a filled polystyrene composition containing from about 5 to about 50

Buckler, Ernest Jack, and Michael Hugh Richmond.

Patent 2,716,619, issued August 30, 1955.Ī process for preparing a non-blooming asbestoscement product with a temporary coating which comprises applying to the surface of an asbestos-cement sheet a plasticized polystyrene resin in a dilute liquid carrier, drying the sheet to drive off the liquid carrier, said resin. 'Process for coating asbestos-cement products.' U.S. Othe examples of combinations of asbestos in some form, such as asbestos cement board with polystyrene or styrofoam However pure styrofoam insulating panels like the Zonolite PanelFoam insulating panels shown in your photos (below) are not likely to contain asbestos unless by cross-contamination as I will mention below. To be clear, in most instances the combination of asbestos-containing materials and polystyrene foam board or styrofoam board were hybrid products combining several materials rather than a simple mix of asbestos fibers or filler right in the polystyrene formula itself. Zonolite, combined with WR Grace, produced Duzone™ insulated roof panels using a vented polystyrene board that combined Zonoite™ insulating concrete ( using vermiculite insulation that contained asbestos) with a structural base of concrete or metal. Yes asbestos was combined with polystyrene in some products in North America at least from the 1950's through the 1970s, possibly longer. Reply: examples of asbestos combined with polystyrene products Question: asbestos combined with polystyrene: Zonoite Dyzone™ Insulated Roof Panelsĭo you know if asbestos was ever combined with polystyrene? recently I found a package of polystyrene in my attic that was made by the grace mining company and had the zonolite brand on it. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need.

STYROFOAM SHEETS SERIES

This article series provides a master list of the forms in which asbestos was used, a list of known asbestos-containing materials, and links to detailed articles about individual asbestos-containing products & materials found in buildings and in a wide range of products used in both home and industry. We have no relationship with advertisers, products, or services discussed at this website.Īsbestos use in styrofoam-based products & applications:

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Styrofoam sheets