INTERPLASTIC CORPORATION
1225 Willow Lake Boulevard
St. Paul, MN 55110-5145
(651) 481-6860
CHEMTREC 24-Hour Emergency Telephone (800) 424-9300
Revision Date: 08/15/01
ATTN: PLANT MGR/SAFETY DIR Issue Date: 12/30/01
MSDS File ID: MSDSLET0
Customer No:
Warehouse No: 0021
This MSDS complies with 29 CFR 1910.1200 (Hazard Communication).
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SECTION I - PRODUCT IDENTIFICATION
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Product Name: SIL95BA-41 CLEAR CASTING RESIN
General or Generic ID: Unsaturated Polyester Resin
Hazard Classification: Flammable Liquid
Shipping Name: Resin Solution (Styrene Monomer), 3, UN1866,
PG III, Marine Pollutant
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SECTION II - HAZARDOUS COMPONENTS
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INGREDIENT CAS NO. PERCENT OSHA-PEL ACGIH-TL NOTE
Unsaturated Polyester Base Resin See Index 62-64 None-Estb. None-Est
Styrene 100-42-5 36-38 50 ppm TWA 50 ppm (1)
(1) OSHA has formally endorsed a styrene industry proposal for a voluntary
50 ppm PEL for workplace exposure to styrene. This proposal was agreed
upon by representatives of the UPR industry. The OSHA STEL is 100 ppm.
The ACGIH recently changed the TLV for styrene from 50 ppm to 20 ppm,
and the STEL from 100 ppm to 40 ppm.
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SECTION III - PHYSICAL DATA
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PROPERTY MEASUREMENT
Initial Boiling Point For Styrene 293.40 Deg F (145.22 Deg C)
@ 760.00 mm Hg
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Vapor Pressure For Styrene 4.3 mm Hg
68 Deg F (20 Deg C)
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Specific Gravity 1.0-1.2
@ 77 Deg F (25 Deg C)
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Vapor Density Air = 1 3.6
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Evaporation Rate Slower than Ether
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PRODUCT: SIL95BA-41
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SECTION IV - FIRE AND EXPLOSION DATA
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Flash Point: 88 Deg F (31.1 Deg C) for Volatile Component
Flammable: (Lowest Value of Styrene) Lower - 1.1%
(Upper Value of Styrene) Upper - 6.1%
Extinguishing Media: Foam, carbon dioxide, dry chemical, or water fog.
Hazardous Decomposition Products: May form toxic materials such as carbon
dioxide, carbon monoxide, and various
hydrocarbons.
Special Firefighting Procedures: Wear self-contained breathing apparatus
with a full facepiece operated in pressure
demand or other positive pressure mode when
fighting fires.
Vapors are heavier than air and may travel along the ground or may be moved
by ventilation and ignited by ignition sources at locations distant from
material handling point.
Never use welding or cutting torch on or near drum (even empty) because
product vapor can ignite explosively.
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SECTION V - HEALTH DATA
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Permissible Exposure Level: Not established for product. See Section II.
POTENTIAL HEALTH EFFECTS
Eyes - Can cause severe irritation, redness, tearing, blurred vision.
Skin - Prolonged or repeated contact can cause moderate irritation,
defatting, dermatitis.
Inhalation - Excessive inhalation of vapors can cause nasal irritation,
dizziness, weakness, fatigue, nausea, headache, possible
unconsciousness, and even asphyxiation.
Swallowing - Can cause gastrointestinal irritation, nausea, vomiting,
diarrhea. Aspiration of material into the lungs can cause
chemical pneumonitis.
PRODUCT: SIL95BA-41
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SECTION V - HEALTH DATA (continued)
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TARGET ORGAN EFFECTS
Overexposure to this material (or its components) has been suggested as a
cause of the following effects in laboratory animals, and may aggravate
pre-existing disorders of these organs in humans: mild, reversible kidney
effects, effects on hearing, respiratory tract (nose, throat, and airways),
testis, liver. Overexposure to this material (or its components) has been
suggested as a cause of the following effects in humans, and may aggravate
pre-existing disorders of these organs: central nervous system effects,
mild effects on color vision, effects on hearing, and respiratory tract
damage (nose, throat, and airways).
FIRST AID
If on Skin: Thoroughly wash exposed area with soap and water. Remove
contaminated clothing. Launder contaminated clothing before
re-use.
If in Eyes: Flush with large amount of water, lifting upper and lower lids
occasionally. Get medical attention.
If Swallowed: Do not induce vomiting. Keep person warm, quiet, and get
medical attention. Aspiration of material into the lungs due
to vomiting can cause chemical pneumonitis which can be fatal.
If Inhaled: If affected, remove individual to fresh air. If breathing is
difficult, administer oxygen. If breathing has stopped, give
artificial respiration. Keep person warm, quiet, and get
medical attention.
PRIMARY ROUTE(S) OF ENTRY
Inhalation, skin absorption, skin contact, eye contact.
PRODUCT: SIL95BA-41
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SECTION VI - REACTIVITY DATA
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Hazardous Polymerization: Possible
Stability: Stable
Incompatibility: Avoid contact with strong alkalies, strong
mineral acids, and oxidizing agents.
Conditions to Avoid: Exposure to excessive heat or open flame,
storage in open containers, prolonged
storage (6 months), storage above 100 Deg F
(38 Deg C), and contamination with
oxidizing agents.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, low
molecular weight hydrocarbons, and organic
acids.
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SECTION VII - SPILL OR LEAK PROCEDURES
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Eliminate all ignition sources (flares, flames (including pilot lights),
and electrical sparks). Persons not wearing protective equipment should
be excluded from area of spill until clean-up has been completed. Stop
spill at source, dike area of spill to prevent spreading, shovel or pump to
tank or drums. Remaining liquid may be absorbed in sand, clay, earth, or
other absorbent material and shoveled into containers.
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SECTION VIII - PROTECTIVE EQUIPMENT TO BE USED
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Respiratory Protection: If PEL of the product or any component is
exceeded, an NIOSH/MSHA approved respirator
is advised in absence of proper engineering
control (see your safety equipment supplier).
Engineering or administrative controls should
be implemented to reduce exposure.
Ventilation: Provide sufficient mechanical (general and/or
local exhaust) ventilation to maintain exposure
below TLV(s).
Protective Gloves: Wear chemical resistant gloves that afford
proper protection to the hands, such barrier
creams maybe used in some environments as long as
proper skin protection is afforded.
Eye Protection: Chemical splash goggles in compliance with OSHA
regulations are advised; however, OSHA
regulations also permit other type safety
glasses. (Consult your safety equipment
supplier.)
Other Protective Equipment: Work clothing that covers arms and legs.
PRODUCT: SIL95BA-41
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SECTION IX - SPECIAL PRECAUTIONS
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Containers of this material may be hazardous when empty. Since empty
containers retain product residues (vapors, liquid, and/or solids), all
hazard precautions given in this MSDS must be observed.
The information accumulated herein is believed to be accurate, but is not
warranted to be, whether originating with Interplastic or not. Recipients
are advised to confirm in advance of need that the information is current,
applicable, and suitable to their circumstances.
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SECTION X - SUPPLEMENT
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Styrene has been identified as a possible human carcinogen by the Inter-
national Agency for Research on Cancer (IARC). The IARC determination is
based on "limited evidence" in animals and other "relevant data." IARC
concedes there is "inadequate evidence" on humans for its findings.
The Styrene Information and Research Center (SIRC) recently sponsored studies
to evaluate potential health effects in laboratory rats and mice exposed by
inhalation to styrene for six hours per day for five days per week of their
lifetime. The rat study, completed in 1996, showed no increased incidence of
tumors related to styrene exposure at levels up to 1000 parts per million
(ppm). The results of the mouse study are in the process of being analyzed,
and so far only the lungs have been evaluated. The number of lung tumors
observed at exposure levels of 20 to 160 ppm was increased as compared to
the number of tumors seen in unexposed mice. These lung tumor results from
the mouse study have been added to the MSDS for styrene.
The lung effects in the new mouse study are in contrast to findings in other
studies in both rodents and humans, including the recent SIRC-sponsored study
in rats. No link between styrene exposure and an increased incidence of
cancer has been found collectively in eight studies of workers in the
reinforced plastics and composites industries prior to 1992, or in two
subsequent studies of composites/reinforced plastics workers. All together,
over 90,000 people have been studied. Exposure levels in these industries are
above the levels routinely measured in styrene and polystyrene production.
Also in the recent animal studies, irritation and degenerative effects on the
olfactory cells in the nose (responsible for the sense of smell) were observed
in mice exposed repeatedly by inhalation to 20 ppm and above, and in rats
exposed to 50 ppm and above. Atrophy (degeneration) of the olfactory nerve
was observed at levels at or above 40 ppm in mice and at or above 500 ppm in
rats. SIRC is conducting follow-up research to further understand these
findings and their possible importance to humans. Liver damage has been
reported in mice at exposure levels of 100 ppm or above; comparable liver
damage has not been reported in rats or humans exposed to styrene. It appears
that mice are more sensitive to styrene than are other species. Information
about potential damage to olfactory cells, irritation in the respiratory
tract, and potential liver damage has been added to the MSDS for styrene.
We recommend that the precautions in this MSDS be followed.
PRODUCT: SIL95BA-41
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SECTION XI - SUPPLIER NOTIFICATION
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This product contains toxic chemicals subject to the reporting requirements of
Section 313 of the Emergency Planning and Community Right-To-Know Act of 1986
and of 40 CFR 372. Please refer to "Section II - Hazardous Components" for the
specific product and concentration.
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BASE RESIN CAS INDEX
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The base resins indicated under Section II are identified by one or more of the
following CAS numbers:
108-05-4 28572-30-7 61224-63-3
113060-15-4 28679-80-3 62569-28-2
135108-89-3 29011-83-4 64386-66-9
141224-31-9 29350-58-1 64386-67-0
149717-53-3 29403-69-8 67380-21-6
155122-62-6 30110-00-0 67599-39-7
25037-66-5 30946-90-8 67712-08-7
25101-03-5 31260-98-7 67845-68-5
25215-72-9 31472-46-5 67939-08-6
25464-21-5 32505-78-5 67939-40-6
25609-89-6 32677-47-7 68002-44-8
25749-46-6 32762-75-7 68140-84-1
25749-49-9 36346-15-3 68140-88-5
25987-82-0 36425-15-7 68171-28-8
26098-37-3 36425-16-8 68238-98-2
26123-45-5 37339-47-2 68299-40-1
26265-08-7 37347-86-7 68492-68-2
26301-26-8 37999-57-8 68511-26-2
26588-55-6 42133-45-9 68585-94-4
26795-76-6 52453-94-8 68647-07-4
27342-37-6 54228-09-0 72259-64-4
27837-75-8 56083-98-8 81192-92-9
27863-48-6 56083-99-9 9003-20-7
28472-89-1 57863-48-6 9065-68-3
28516-30-5 58182-50-6
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