Document ZkvOv0rY8QRGaXzGz0NJbrYO
EJTS0G-003904
PLAINTIFF'S EXHIBIT
MATERIALS________
4he hunt for
substitutes
for asbestos
A flurry of new products follows condemnation of asbestos as a hazard
Increasing concern over the health haz ards associated with asbestos is shak ing up the makers of high-temperature insulation, a ubiquitous product that covers pipes and boilers in power plants, refineries, and other process fa cilities.
Thu basic formula of the most com mon type of asbestos insulation has not changed in more than 20 years. It con sists of calcium silicate, which is made by chemically combining diatomaccous earth and lime, with asbestos added as a reinforcing binder. But now the gov ernment has tightened its regulations
J exposure to asbestos dust, and the rkers who install insulation have ' Tcatcned industry with lawsuits. As
result, the $30-milUon-a-year indus.ry is in a flurry of new-product devel opment: Pibrolward Corp. of San Francisco switched Iasi fall to an iwIroHtoHrfrcc calcium silicate. The company declines to disclose its new reinforcement, but says that it is a combination of a natu ral and a manufactured fiber. Accept ance has been so good that Fibrcboard now plans to double capacity--the first major expansion that the calcium sili cate industry has seen in years. Johns-Manville Corp. and OwensComing Fibcrglas Corp. are pushing research efforts to eliminate asbestos from their insulation products. J-M says that it has already reduced the as bestos content of one product from 12% to 7% in the last two years. OwensComing, which broadened its line of insulation materials in 1958 to include calcium silicate, has conducted plant trials of a product that uses glass fibers in place of asbestos. "We plan to introduce this product as quickly as possible,'' a spokesman says.
CJ Philip Carey Co. of Cincinnati, a diion of 1'anacon Corp., which was ac(Uircd last spring by Jim Walter Corp., has had a non-asbestos product on the - arket since 1970. It uses perlite,- a vollic glass that expands when heated , form a lightweight aggregate of tiny spheres, and the perlite is rein forced with glass fibers. Carey claims
that the product, called Carcytomp,
meets the same temperature demands
as the asbestos product
-
The tough new controls issued by the
U.S. Occupational Safety & Health
Administration are a fresh spur to sup
pliers to come up with substitute insu
lating products. They do not ban as
bestos insulation, but they impose a
limit of five, asbestos fibers per cubic
centimeter in the air that workers
breathe. Their requirement that the air
quality be monitored when asbestos is
used may alone be enough to prompt
many contractors to switch.
In the courts.- Pressure for change
started to build up well before the oska
stepped in. Backed by research find
ings that exposure to asbestos dust can
lead to lung disorders, insulation work
ers have been pressing compensation
claims in court against contractors and,
more recently, against manufacturcrs.-
"I expect to see a lot more of these
suits soon," says Andrew T. Haas, pres
ident of the 18,000-member Inter
national Assn, of Heat & Frost Insula
tors & Asbestos Workera.
The standard calcium silicate panels
contain about 10% asbestos. And be
cause the panels arc solid they do not
produce the obvious environmental
hazard of the loose aslicstos fibers that
until recently were widely used to fire
proof new buildings. But the dust gen
erated in cutting and handling the
panels during installation or removal
carries enough asbestos to be hazard
ous if it is not scrupulously controlled.
"There is no practical way to elimi
nate the dust problem completely,"
says L. Perry Holmes, president of
Plant Asbestos Co., a California insula
tion contractor. "Wc have eliminated
asbestos products, and we are working
on a name change for our company."
Non-asbestos products are making
A section for Fibreboard'i new covering for a large-diameter pipe comes from the mold.
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KNS00003904
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chemical giant is "scrambling" to dis
cover substitutes for asbestos insula
tion in its plants. Robert Murfin, presi
dent of b&b Insulation, Inc., in
Houston, estimates that Fibreboard
and Philip Carey have increased their
penetration of the big Gulf Coast pet
rochemical-plant market by about 7%
in the last year. In another year, he
predicts, non-asbestos products will ac-
*We looked at materials costing $30 a pound, and
they just didn't work'
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count for 70% of tho market, up from
35% today.
Problems. For makers of insulation
products, the problem has been to find
a fiber that can do everything asbestos
docs and do it at a reasonable price.
Fibrcboard Corp. tested scores of'
fillers, including redwood bark, before
settling on its proprietary composition.
"Asbestos runs about 8C a lb.," says
Richard F. Gamble, manager of the
company's industrial insulations plant.
"Wo looked at materials costing $30 a
lb., and they just didn't work."
'
Besides being noncombustiblc, as
bestos fibers arc jagged enough to hold
the calcium silicate mixture tightly to
gether, and they are resistant to the
highly alkaline chemical reaction that
is used in making the material. This re
action, which is not a problem with the
perlite used by Carey, tends to chew up
glass fibers. "We tried fiber glass with
all sorts of coatings," says Gamble,
"and it just melted away." However, a
spokesman for Owens-Coming, which
is counting on use of glass liber, claims
that the company recently solved a
similar problem by developing an al-.
kali-resistant fiber for reinforcing ce
ment.
The new products of Fibreboard and
Carey do not in all cases perform as
welt as the old ones. Vincent Lockary,
subcontract supervisor for Bechtel
Corp., the big engineering outfit, says
that Fibreboard's product is "adequate
but not as good as asbestos." And
Carey's product manager, Charles Ho-
shaw, concedes that his new perlite
product "has advantages and disadvan
tages."
Yet both suppliers claim to have
more orders than they can handle. "We
have made more enemies than friends
because we can't deliver," Hoshaw
says. Fibreboard is spending $5-milIion
on a new plant in Louisiana that
Gamble say's will give him enough ca
pacity to displace Johns-Manvillc as
tho industry's top producer. "I have no
doubt that we can sell everything we
produce," Gamble declares. "Our indus
try has always been very slow to
change. But now it has to."
a
MATERIALS
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Nairn:
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Tatax 73844
Company:
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uMdtaaa: ________________________
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BUSINESSWEEK July IS. 1972 *4 a
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