Material safety data sheet (MSDS)

Material safety data sheet (MSDS)
Page 1 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
1. Identification of the product and its supplier
1.1 Product
Trade name: Silchem rotary shaft seal
Norm: 601+A
Composition: 1. Sealing lip made of PTFE
2. Elastomer part made of Silicone-70
3. Back-up ring made of stainless steel (1.4305)
4. Tension spring made of stainless steel (INOX)
5. Wiper made of PTFE
1.2 Supplier
TEDAG Dichtungstechnik und Industriebedarf AG
Rosenstrsse 14
CH-8400 Winterthur
Information Telephone: 0041 52 212 06 45
Fax: 0041 52 213 93 16
2. Sealing lip made of PTFE
2.1 Chemical characteristics: Polytetrafluorethylene (PTFE) with fillers such as
glass fibre, carbon, carbon fibre, graphite,
molybdenum sulphide, aluminium oxide, calcium
fluoride, mica, bronze, nickel, steel, polymer
fillers
2.1.2 Form Foil
2.1.3 Colour various
2.1.4 Odour none
2.2 Physical properties Unit Method of testing
2.2.1 Melting point: 327 - 342 °C ASTM D1457
2.2.2 Density: 2.0 - 4.0 g/cm3 ASTM D792
2.2.3 Vapour pressure: n.a. hPa
2.2.4 Viscosity: n.a. mPa * s
2.2.5 Water solubility: insoluble g/l
2.2.6 pH value: n.a.
2.2.7 Flashpoint n.a. °C
2.2.8 Ignition point > 500 °C ASTM D1929
2.2.9. Explodability limit lower: vol. %, upper: vol %
2.2.10 Hazardous decomposition
products: Fluorized olefins, carbonyl fluoride, hydrogen fluoride
2.2.11 Hazardous reactions: with pulverized magnesium or aluminium from
425°C, with molten alkaline metals or in interhalogen
combinations. Auxiliary processes
are possible between fillers and plastic
decomposition products.
2.2.12 Further details: Perfluoro isobutylene starts being produced at
about 500°C, if decomposition takes place
in air.

Material safety data sheet (MSDS)
Page 2 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
2.3 Transport
Not a hazardous product as defined in transport regulations
2.4 Regulations
This product is not subject to identification requirements in accordance with EC directive
67/548
2.5 Safety precautions, storage and handling
2.5.1 Personal safety equipment in the event of a fire:
Breathing equipment: Wear breathing apparatus in the event of dust
Eye protection: Safety glasses
Hand protection: Safety gloves
2.5.2 Hygiene practice:
General protective measures:
Do not breath in vapours given off by hot polymer.
2.5.3 Protection from fire and explosion:
The product cannot be ignited and is self-extinguishing.
2.5.4 Disposal:
Can be dumped provided local authority regulations are observed. Can be incinerated
provided local authority regulations are observed, if HF is removed through gas
washing.
2.6 Precautions to be taken in the event of accidents and fires
2.6.1 After spillage, leakage or fire:
Pick up using safety gloves
2.6.2 Suitable extinguishers:
Water, carbon dioxide, foam, dry powder
2.6.3 First aid:
Inhalation:
After inhaling fumes from fires or decomposition products following a mishap, go out
into the fresh air. For severe effects call a doctor. See also paragraph 2.7.
Skin contact:
After contact with molten polymer, apply cooling quickly, using cold water. Do not try
to pull polymer off of the skin. Call a doctor.
Eye contact:
Rinse with water.
Swallowing:
No risk to health.
2.6.4 Further details
The ALT (Approximate Lethal Temperature) of PTFE is 400°C. The ALT is the
temperature at which the decomposition products would kill one in four rats, after they
had been exposed to it for four hours.
In the event of fire, wear breathing apparatus that is independent of ambient air.
Wear neoprene gloves when handling charred remains from the fire.

Material safety data sheet (MSDS)
Page 3 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
2.7 Details for toxicology
Inhalation of the polymer’s thermal decomposition products (e.g. by inhaling in
contaminated tobacco) can cause ’polymer fever’ with accompanying flu-like symptoms.
These symptoms generally do not occur until two or more hours after smoking the
contaminated tobacco and subside over the next 36 to 48 hours. Experience indicates
that there is no lasting or cumulative effect.
Limiting values of effects:
Breathable dust: MAK = 6 mg/m 3 (as fine dust) (1988)
Hydrogen fluoride: MAK = 3 ml/ m 3 = 2 mg/m 3 , inrush limiting, cat. I (1988)
Soot: TLV-TWA = 3.5 g/m 3 (ACGIH, 88-89)
Mica: TLV-TWA = 3 g/m 3 (ACGIH, 88-89)
Nickel (in the form of
breathable dust): TRK = 0.5 mg/m 3 (1988)
2.8 Details for ecology
Before use, take heed of the safety information for this Silchem shaft seal, which you can
obtain from your TEDAG adviser.
3. Elastomer part made of Silicon-70
3.1 Chemical
characteristics Vulcanized rubber mixture MQ 70
(On a silicon-rubber base)
3.1.1 Form: solid
3.1.2 Colour: white
3.1.3 Odour: typical
3.2 Physical properties Unit Testing method
3.2.1
3.2.2
Melting point
Density:
n.a.
1.36
°C
g/cm 3
DIN 53479
3.2.3 Vapour press. (20°C): n.a.
3.2.4 Viscosity: n.a.
3.2.5 Solubility in
water (20°C): insoluble
3.2.6 pH value (g/l H2O): n.a.
3.2.7 Flashpoint n.a. °C
3.2.8 Ignition point n.a. °C
3.2.9 Explosion limit: lower: n.a. vol %, upper: n.a. vol %
3.2.10 Stability and reactivity: No reactivity under normal conditions.
3.3 Transport
Not a hazardous product as defined in transport regulations

Material safety data sheet (MSDS)
Page 4 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
3.3 Regulations
3.4.1 Contains identifying marks and hazard signs
R sets: R :
S sets: S :
3.4.2 Special identification of certain
preparations:
3.4.3 National regulations:
3.4.4 VbF class:
3.4.5 Technical instructions for air
3.4.6 Ground water hazard class: 0
3.4.7 Other regulations
3.5 Safety precaution, storage and handling
3.5.1 Personal safety equipment in the event of fire
Breathing protection: Wear breathing apparatus in the event of
free dust
Eye protection: Safety glasses
Hand protection: Safety gloves
3.5.2 Work hygiene
Health hazard when inhaled and when in contact with the skin.
Do not eat, drink or smoke when working.
Wash hands thoroughly with soap and water before breaks and immediately after
handling the product. Use barrier creams.
Breathing protection: Not required
Hand protection: Barrier cream
Eye protection: Not required
Body protection: Not required
3.5.3 Storage class (CEA/VCI) 11 combustible solids
3.6 Precautions to be taken in the event of accidents and fires
3.6.1 Suitable extinguishers:
Water, foam, dry extinguishers. carbon dioxide (CO2)
3.6.2 Unsuitable extinguishers:
3.6.3 Special hazard from decomposition products.
Heavy smoke. Where there is a shortage of air, products of oxygen deficiency like
carbon monoxide can be formed. Use breathing apparatus independent of outside air.
3.6.4 Water contaminated by being used for extinguishing is to be collected and kept
separate.
Sweep up and send for disposal in suitable containers.
3.6.5 After inhaling: not applicable
3.6.6 After swallowing: No particular advice required
3.6.7 After skin contact: Wash thoroughly using soap and water
3.6.8 After contact with eyes: Wash thoroughly using plenty of water
3.6.9 General safety precautions are to be observed for handling chemicals.

Material safety data sheet (MSDS)
Page 5 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
3.7 Details for toxicology
No particular advice required
Values relevant to classification
2.9 Details for ecology
This product is not biologically degradable. Due to its consistency it is not possible for
particles to disperse into the environment. On current thinking, negative ecological
effects are not anticipated.
3.8 Notes on disposal
3.9.1 Product
3.9.2 Waste key number
LAGA: 57501 waste rubber
3.9.3 Packaging
Can be stored with household refuse or incinerated together
with it, so long as national regulations are heeded and after
consultation with the person running the disposal site and the
appropriate authorities.
4 Back-up ring made of stainless steel (1.4305)
4.1 Chemical
characteristics: Product in accordance with EC Directive 67/548/EEC in the
form of a solid alloy, containing nickel.
4.1.2 Composition: Chrome (Cr) up to 35%
Nickel (Ni) up to 80%
Manganese (Mn) up to 10%
Molybdenum (Mo) up to 10%
Iron (Fe) remainder
4.1.3 Shape: ring
4.1.4 Outward appearance: solid
4.1.5 Odour: none
4.2 Physical properties Unit Method of testing
4.2.1 Melting point: 1300-1500 °C
4.2.2 Density (20°C): 7.7 - 8.3 g/cm 3
4.2.3 Vapour pressure n.a.
4.2.4 Solubility in:
Water insoluble
Oil insoluble
4.2.5 Flashpoint n.a.
4.2.6 Flammability Material is non-flammable
4.2.7 Self-ignition: Material cannot self-ignite
4.2.8 Explosive properties: Material cannot self-ignite
4.2.9 Oxidation properties n.a.
4.2.10 Thermal volume
Expansion: 12 l 10 -8 - 18 l 10 -8 °C -1 (mean value up to 20 - 100°C)

Material safety data sheet (MSDS)
Page 6 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
4.2.10.1 Heat conductibility
at 20°C 11 - 16 W/(m l °C)
4.2.10.2 Specific resistance
At room temperature: approx. 0.8 :µΩm
4.2.13 Magnetic properties:
Duplex, ferrite and martensite stainless steels are
ferromagnetic. Permeability at 20°C: typically 10-
200. Austenitic stainless steels are not
ferromagnetic, but can display a small amount of
ferromagnetism due to the slight quantities of ferrite.
Permeability at 20°C: 1.005-1.1
4.3 Transport
No special precautions are to be taken. Harmless goods.
4.4 Regulations
Local laws and regulations in force are to be carefully heeded and complied with.
This product has been classified as category 3 in accordance with the EC directive
67/548 EEC with the following comment "suspected of being carcinogenic".
Hazard category: Xn harmful
Risk category: R40 possibility of irreversible harm
R43 possibility of sensitizing through skin contact
4.5 Safety precautions, storage and handling
4.5.1 Safety precautions
No particular safety equipment required.
Breathing protection: Not applicable
Eye protection: Not applicable. (possibility of injury, e.g. due to sharp
edges, etc.)
Hand protection Not applicable. (possibility of injury, e.g. due to sharp
edges, etc.)
4.5.2 Work hygiene
Wash hands before breaks and immediately after handling the product.
4.5.3 Fire and explosion precautions:
No particular precautions necessary
4.5.4 Storage, storeroom and container requirements
No particular planning for storerooms and containers
4.5.5 Environmental protection precautions
Not to be permitted into the environment.
4.5.6 Disposal
This product should be sent for recycling as far as is possible, since it constitutes
a valuable raw material for the production of stainless steel.

Material safety data sheet (MSDS)
Page 7 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
4.6 Precautions for accidents and fire
4.6.1 After spillage, leakage or fire:
The product is non-flammable
Pick up mechanically and take in suitable containers for disposal.
In connection with this product there are no hazards or precautions, should this
product be located near a fire.
4.6.2 First aid:
Consult a doctor in the event of debility or continuing eye irritation.
Inhaling:
Not applicable
Ingestion:
Not applicable
Contact with eyes:
Not applicable. (Injury possible as a result of sharp edges etc, for example.)
Skin contact:
Not applicable. (Injury possible as a result of sharp edges etc, for example.)
After contact with hot steel, cool of with cold water.
4.6.3 Further details
Usual precautions for fires involving metals.
4.7 Details for toxicology
This product contains nickel, which has been classified in the EC directive 67/548/EEC
as a substance that is carcinogenic when inhaled or absorbed (Category 3, i.e. gives
cause for concern for people …The available details are however not suitable for
carrying out a satisfactory judgement.
The definitions of the product directive 88/379/EEC mean that all compounds,
solutions and alloys with at least 1% nickel content, in the absence of other regulations,
are to be classified in the same manner.
According to our knowledge however, neither in epidemiological examination nor
in animal testing was there any report of exposure to the product having caused any
carcinogenic effects. Long-term experience with the product in the most varied of
applications has proven that these very resistant materials are outstandingly suitable
where hygiene is of paramount importance.
Nickel is likewise classified as a skin sensitizer through longer contact with the
skin of a few people (e.g. through wearing jewellery).
The product does, however, normally cause no allergic reactions at all.
Such solid products cannot be inhaled or absorbed and therefore do not
represent a toxic hazard.
During mechanical processing, flame cutting or welding, stainless steel dust or
vapours can be formed, which contain oxides of its constituents. Over a long period of
time, inhalation of an excess of particles suspended in air can have repercussions for
health, which primarily affect the lungs. Examination of workers exposed to nickel
powder, dust and gases as a result of the production of nickel alloys and stainless steels,
have, however, indicated no danger of cancer of the respiratory tract.

Material safety data sheet (MSDS)
Page 8 of 8
This MSDS has been compiled in accordance with the guidance included in the EC Directive
93/112EC
4.7.1 Acute oral or
inhalatory toxicity: Not applicable
4.7.2 Acute dermatological
toxicity: Not applicable
4.7.3 Acute irritation or causticity
Of the skin or eyes: None
4.8 Details for ecology
No knowledge of harmful consequences. No precautions necessary. The product is
normally inert in watery solutions.
5. Wiper
Details as for item 2
6. Other details
The data and details given in this MSDS are based on our current knowledge. They are
not however to be construed as a guarantee for any particular product attributes and
establish no legal and contractually valid connections.
This MSDS was published on the 26 th of October 2000 by TEDAG Dichtungstechnik und
Industriebedarf AG.
Legend: n.a. = not applicable