Gaskets are materials used to seal one compartment of a device ...

Abrasives 1986; Custom Fibers International 1986). Custom Fibers suggest a
starting formulation for an asbestos-free roof coating includes the following:
Asphalt cutback
Surfactant
Attapulgite clay
Talc or calcium carbonate
CF Fibers 32500 (R)
The CF-32500 (R) cellulose fiber, at increased concentration, can also be used
for asbestos replacement in an asphalt plastic roof cement in the following
formulation: (Custom Fibers California 1986).
Asphalt cutback
Surfactant
Bentonite clay
Talc
CF Fibers 32500
More than 16 companies currently produce cellulose containing roof
coatings and cements. Table 2 identifies additional manufacturers of
cellulose containing roofing compounds (ICF 1986).
Gardner Asphalt produces asbestos free products that contain a proprietary
formulation of cellulose fibers and inorganic thickeners.
According to
company officials, the formulation costs more to produce and yields an
inferior product. However, they do indicate that consumers could switch
completely to the substitute formulation if the asbestos product was made
unavailable (Gardner Asphalt 1986).
Gibson-Honians Corporation of Twinsburg, Ohio, substituted for asbestos in
both
their aluminum and standard black roofing products with a mixture of
cellulose fibers, kaolin clays, crushed limestone, sodium silicates and water
in April, 1986. Initially losing some of their sales due to adhesion,
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