Foam Your Ideas with Bayfit® - BaySystems - customized ...
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<strong>Foam</strong> <strong>Your</strong> <strong>Ideas</strong> <strong>with</strong> Bayfit ®
Bayfit ® :<br />
More than just a<br />
flexible foam<br />
Contents<br />
The idea<br />
Our business<br />
Our know-how<br />
Bayfit ® Home<br />
Bayfit ® Office<br />
Bayfit ® Public<br />
Bayfit ® Memory<br />
Bayfit ® Tec<br />
Bayfit ® Automotive<br />
The materials<br />
Technical details
“An idea is<br />
a thought frozen<br />
in time”<br />
Henri Bergson, French philosopher<br />
and Nobel prize winner<br />
Practically no other modern-day invention is so aptly described by this quote from Henri Bergson than<br />
Bayfit ® – the polyurethane flexible foam from <strong>BaySystems</strong>.<br />
When Prof. Dr. Otto Bayer discovered polyurethane back in 1937, hardly anyone could have guessed just<br />
how successful this new material would prove to be. Since then, several generations of chemists, product<br />
developers, engineers and designers have turned polyurethane into one of the most fascinating materials<br />
for an astonishing variety of applications – a material that has enabled countless ideas to become reality<br />
and whose versatility provides a constant stimulus for new ideas.<br />
The fact that <strong>BaySystems</strong> today ranks among the leading system suppliers is the result of ongoing<br />
research and development efforts and close, targeted cooperation <strong>with</strong> customers across the world.<br />
So why not make use of our know-how to realize your ideas! Use Bayfit ® !
Shadow armchair, Design Gaetano Pesce, Meritalia SPA Furniture, Italy
“Our business<br />
is about <strong>customized</strong><br />
solutions”<br />
Bayfit ® enables functional parts – such as inner springs, supports, joints, fastenings or entire steel<br />
structures – to be insert molded. Bayfit ® makes it easy to incorporate inserts or to back-fill fabrics <strong>with</strong><br />
foam – from super-soft to extra hard.<br />
In this way, Bayfit ® can be used to combine spectacular shapes <strong>with</strong> a high degree of functionality, maximum<br />
comfort and top quality. This makes Bayfit ® molded foam systems the ideal complement to traditional<br />
slabstock foam, which is less suitable for some designs due to the additional cutting and bonding<br />
work and high scrap rates.<br />
The Bayfit ® range also includes a diverse mix of specialty systems for such areas as the production<br />
of medical mattresses and aircraft seats. The <strong>customized</strong> solutions in flexible polyurethane molded<br />
foam available from <strong>BaySystems</strong> not only include the products and expertise needed to produce flameretardant<br />
seating for public areas but also high-quality technical filters and gaskets.
Carousel-type unit, Hennecke, Germany
Bayfit ® Home<br />
Bayfit ® Office<br />
Advantages of Bayfit ® at a glance:<br />
• Cost-efficient production of complex contoured<br />
moldings<br />
• Inserts can be integrated <strong>with</strong>out any problems<br />
• Highly elastic to viscoelastic grades in a range<br />
of different densities and hardness<br />
Bayfit ® Public<br />
Bayfit ® Memory<br />
Bayfit ® Tec<br />
Bayfit ® Automotive
100 % benefit:<br />
Extensive polyurethane<br />
know-how<br />
Producing a good flexible polyurethane foam is not just about high-quality raw materials. It also requires<br />
expert technical support to ensure selection of the right systems and to optimize the polyurethane<br />
chemistry for the particular application.<br />
With <strong>BaySystems</strong>, you can expect this excellent technical support for more than just the flexible foam<br />
system. Flexible and rigid integral skin foams such as Bayflex ® and Baydur ® , and the innovative plasticizer-free<br />
Technogel ® add to both the modular material system and the know-how of our consultants.<br />
Why not exploit this expertise in full for your own creative solutions?<br />
In addition to technical advice, <strong>BaySystems</strong> can also provide you <strong>with</strong> access to foaming plants for<br />
testing and to fully equipped laboratories – irrespective of whether you are looking for an innovative<br />
polyurethane solution, simply seeking the best way to get into polyurethane technology for the first<br />
time – whether you deal in large or small volumes.
Panton Chair, Design Verner Panton, Vitra, Switzerland (Photographer: Hans Hansen)<br />
UP5 + UP6, Design Gaetano Pesce, B&B Italia, Italy<br />
Missy, Design Mark Gutjahr, W+S Formschaum, Switzerland<br />
Cuore, Technogel ® , Italy
Baydur ® : Rigid integral skin foam for the classic s of the future<br />
Bayflex ® : Flexible integral skin foam for fresh design ideas<br />
Bayfit ® : Flexible foam f o r “feel-good” furniture<br />
Technogel ® : High-tech polyurethane gel for innovative comfort
Upholstery <strong>with</strong><br />
Bayfit ® Home or<br />
“My foam is my castle”<br />
Nowadays, exclusive design is more important than ever in modern living. It is the material that plays<br />
the key role here, in combination <strong>with</strong> contemporary styling.<br />
With their broad spectrum of properties, Bayfit ® foams place practically no restrictions on design.<br />
Whether curved or angular, functional and to the point, conventional, bulky or extravagant – any shape<br />
and any style can be turned into reality.<br />
There is a wide range of potential uses for Bayfit ® in furniture production: from the softest cushions<br />
to hard armrests. Fastenings or inserts made by injection molding or from wood, as well as structural<br />
components made from metal, can all be permanently bonded to the cushioning during the foaming<br />
process. This creates high-quality furniture that both looks and feels great.
Moon System, Design Zaha Hadid, B&B Italia, Italy
The advantages of Bayfit ® for upholstered furniture production: • <strong>Foam</strong>ing of very large moldings<br />
• Integration of complex inserts made from wood, metal or plastic<br />
• Wide range of hardness from rigid to very flexible<br />
• High flowability, even in large, long or narrow flow channels and in intricate molds
Bayfit ® Office:<br />
“Chairman’s choice”<br />
Office furniture made <strong>with</strong> molded foam cushioning from Bayfit ® retains its hardness and contours<br />
for years. This guarantees a comfortable and ergonomically designed seat and results in stress-free<br />
employees who can concentrate on their work and perform well. This alone makes the use of Bayfit ®<br />
economically viable.<br />
The fact that structural parts can be securely bonded to the foam during the foaming process brings<br />
economic advantages, resulting in faster and consequently cost-effective production processes. And<br />
our polyurethane systems offer top performance – from heavy-duty seat cushioning made of Bayfit ®<br />
to comfortable armrests made of Bayflex ® integral skin foam.<br />
Bayfit ® systems for office furniture are always tailored to our individual customers’ wishes. Their<br />
quality requirements and processing conditions are all taken into account, along <strong>with</strong> the available<br />
logistics. Whether you want to produce parts <strong>with</strong> differing geometries and volumes or thin office<br />
chair pads <strong>with</strong> integrated fastenings and support elements or foam-backed covering fabrics – Bayfit ®<br />
provides the perfect result, combining style, comfort and added value every time.
Axess Plus, Design Antonio Citterio, Vitra, Switzerland
The advantages of Bayfit ® for office furniture production:<br />
• Harder foams providing the ultimate in strength<br />
• Complete curing even <strong>with</strong> very small parts<br />
• Ideal for plastic inserts requiring effective adhesion<br />
• For thin office chair pads <strong>with</strong> integrated fastenings and support elements<br />
• For direct back-foaming of covering fabrics
Bayfit ® Public:<br />
Completely relaxed on<br />
just 0.4 square meters<br />
The seating used in trains and busses or in public buildings such as theaters, cinemas and airports<br />
represents the ultimate in seat design. The need for optimum comfort and fire retardancy places<br />
exceptionally stringent demands on flexible foams used in these applications.<br />
Bayfit ® systems for public areas provide designers <strong>with</strong> the basis to develop ergonomically optimized<br />
upholstery cores. The diverse range of Bayfit ® formulations enables the comfort attributes of the<br />
upholstery such as hardness, elasticity and damping to be tailored to the specific application. It also<br />
means that specific combustion properties such as smoke density and toxicity, flame spread and<br />
melting behavior meet the rigorous national and international standards.<br />
Our wide-ranging expertise and our close cooperation <strong>with</strong> Currenta’s Fire Technology department<br />
ensure that there is an optimum Bayfit ® system for every situation.
Bayfit ® innovations in the field of flame retardance:<br />
The Bayfit ® system: melamine-free!<br />
• Use of PHD polyethers*<br />
• Avoidance of powder handling<br />
• Good storage stability of the formulation<br />
• Reduced abrasion in the mixing head and less wear<br />
and tear on pumps<br />
The Bayfit ® system: halogen-free!<br />
• Thanks to intensive development work in<br />
cooperation <strong>with</strong> manufacturers of flame retardants,<br />
the Bayfit ® range also includes halogen-free molded<br />
foam systems<br />
* stable dispersion of low-flammability polyurea in polyether
Bayfit ® Memory:<br />
A lasting impression<br />
of comfort<br />
In addition to the highly elastic Bayfit ® flexible foams, high energy-absorbing foams – known as slow<br />
recovery or viscoelastic foams – are used in special applications. These are particularly suitable for<br />
the manufacture of comfortable cushions, mattresses and special orthopedic moldings. They are<br />
mainly used to prevent bedsores (sores that occur due to the patient lying in one position for a long<br />
time).<br />
Bayfit ® Memory foams only regain their shape very slowly after deformation. Exposed to the heat and<br />
pressure of a human body, the foam optimally adapts to each individual contour thereby distributing<br />
the body weight across the greatest possible surface area. The low level of resistance ensures optimum<br />
pressure distribution. The finished molded foam can also be given an additional hygienic outer<br />
layer in the form of a Baytec ® elastomer skin.<br />
Currently, viscoelastic foams are mainly used in mattresses and pillows, but they would also be an<br />
excellent choice for applications in the “Home” and “Office” sectors.
Alova, Asklé Santé, France
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The compression curves clearly illustrate the difference between standard foams (HR: high resilience) and<br />
viscoelastic foams (VE): Compared <strong>with</strong> HR foams, VE foams show a smaller increase in force at higher<br />
deformations. The large hysteresis in the VE foam curve reflects the slow shape recovery of the compressed<br />
material.
Bayfit ® Tec:<br />
Soft foams for tough<br />
applications<br />
<strong>Foam</strong>-in-place technology, where the seal is applied to the workpiece during the foaming process,<br />
has grown significantly in importance over the last few years. It is increasingly replacing the use of<br />
prefabricated gaskets made from materials such as PVC and rubber. The automotive industry and its<br />
suppliers, as well as the electrical and electronics sectors, have been the main beneficiaries of the<br />
advantages brought by Bayfit ® .<br />
The main advantage over installing pre-molded gaskets lies in the major potential for rationalization.<br />
Thanks to the foaming process, material consumption is lower than <strong>with</strong> solid alternative materials.<br />
Additionally, production can take place on automated processing lines, ensuring a high level of productivity<br />
and fitting accuracy.<br />
The electrical and electronics sectors also appreciate the sound-absorbing properties of Bayfit ® foams.<br />
They use the noise-reducing grades in electrical appliances thanks to their flame-retardant properties.
The advantages of Bayfit ® for the technical sector:<br />
• Processing into lightweight gaskets<br />
• Production and assembly in one step<br />
• Good chemical resistance<br />
• High temperature resistance and low compression set<br />
• Good adhesion to all conventional substrates such<br />
as plastics, metals, stainless steel and surface coatings
Bayfit ® Automotive:<br />
In the driver’s seat<br />
Seldom a material has been used so consistently in car components as in the seats. In fact, well over<br />
90 percent of all car seats are produced using flexible polyurethane foam. On average, that represents<br />
a weight of 10 kilograms per car.<br />
In this application, Bayfit ® foam enhances comfort but also keeps the driver alert. After all, no matter<br />
how comfortable the interior, drivers have to be fully attentive at all times and in every situation. The<br />
elasticity and contours of Bayfit ® also give the occupants ergonomic support to ensure that they can<br />
always maintain the right posture.<br />
Bayfit ® foams dampen vibrations, offer outstanding climate comfort and also have excellent load<br />
resistance – which means they do not deteriorate even during long-term service. They can be used to<br />
manufacture seat and backrest cushioning to fit the contours of the body, as well as head and arm rests<br />
in all conceivable shapes and hardness grades. Using dual-hardness foam technology, the lateral edges<br />
of the seat cushion can be made more stable. This means that, despite the centrifugal forces exerted on<br />
drivers going round corners, they still sit firmly “in the saddle”.
Car seat Volvo V70, AB Volvo, Sweden
The advantages of Bayfit ® Automotive<br />
for car seat production:<br />
• Excellent load resistance and long-term elasticity<br />
• Can be manufactured in virtually any shape and size<br />
• Smooth integration into series production<br />
• Inserts for fixing the covering fabric are molded in<br />
• Higher lateral stability <strong>with</strong> dual-hardness technology<br />
• Compliance <strong>with</strong> the most stringent emission and odor specifications
Bayfit ® Automotive:<br />
Comfort on two wheels<br />
Comfort and ergonomic support are not only important for seating in cars and trucks. Staying in the<br />
saddle is even more important when it comes to motorcycles and their safe handling – especially in<br />
critical situations.<br />
Bayfit ® molded foams offer all the features you need to produce motorcycle saddles: virtually unrestricted<br />
freedom of design for all kinds of shapes and high hardness that can easily be combined <strong>with</strong><br />
low density. Saddles made <strong>with</strong> Bayfit ® systems provide comfortable seating for motorcycles that<br />
dampens vibrations and also ensures excellent load resistance and long-term elasticity.<br />
Bayfit ® systems additionally enable highly efficient processing when manufacturing saddles. Functional<br />
parts can easily be integrated, and backfoaming of surface materials is possible. So too are dualhardness<br />
seating solutions: the sides and edges of the seat can be “zoned-off” <strong>with</strong> a higher foam<br />
density that provides stable ergonomic support. This makes riding a motorcycle even more enjoyable<br />
and relaxing.
Varroc Engineering Pvt. Ltd., India
The advantages of Bayfit ® Automotive for 2-wheeler seating:<br />
• High load resistance <strong>with</strong> long-term elasticity<br />
• Wide range of hardness and density<br />
• High processing flexibility and efficiency providing freedom of design<br />
• Dual-density seating possible for a high level of ergonomic support and comfort<br />
• Integrated processing together <strong>with</strong> inlays and covering materials possible
Bayfit ® Automotive:<br />
Silence is golden<br />
If a driver is exposed over a long period to loud noise, it is not only bad for his or her health, it also constitutes<br />
a significant safety risk. Bayfit ® Automotive systems absorb air-borne and structural noise to create<br />
pleasant interior acoustics. The optimum solution here is to use Bayfit ® foams and Bayflex ® heavy-layer<br />
cladding, either alone or in combination (the spring-mass principle). Ideally, the component will be made<br />
entirely of polyurethane. These components are normally invisible, e.g. they form the sound insulation<br />
on the bulkhead behind the dashboard, the foam backing on carpets and wheel arch linings, or modules<br />
for engine compartment insulation. All products can be processed very economically, because no timeconsuming<br />
trimming is needed. They can also be molded to the most complex geometries and are kind to<br />
the ears – and nerves – of the driver and passengers.<br />
With their optimized foam structure and perfect cavity filling, Bayfit ® Automotive foams offer excellent<br />
absorption of air-borne noise. Viscoelastic Bayfit ® in combination <strong>with</strong> a heavy layer of Bayflex ® SA also<br />
results in ideal structural sound and vibration damping. With the highly filled Bayflex ® SA and Bayflex ® SP<br />
systems for heavy layers, manufacturers can choose between grades for the classic RIM process or the<br />
more flexible spray processes. With both methods, the layer thickness can be varied at every single point<br />
on the part.
Carpet backing Audi Q7, Audi AG, Germany
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The advantages of Bayfit ® Automotive for sound insulation:<br />
• Damping of air-borne and structural noise<br />
• Good long-term service properties under high mechanical stresses and extreme climatic influences<br />
• Elastic, viscoelastic and adhesive grades possible<br />
• Compliance <strong>with</strong> the most stringent emission and odor specifications
Countless options:<br />
The raw materials<br />
for Bayfit ®<br />
With the extensive range of TDI- and MDI-based isocyanates at our disposal, we at <strong>BaySystems</strong> can<br />
provide all the materials required for producing flexible molded foams. All isocyanates are available<br />
in pure form, in modified form (e.g. as prepolymers) and as isocyanate blends. The specialty products<br />
available also include modified TDI grades known as HP or High Performance TDI, used in our systems<br />
to improve flame retardance.<br />
Also included in our comprehensive product range are long-chain polyols and polyethers <strong>with</strong> shorter<br />
molecular structures and differing reactivity and functionality. We can also provide polyethers <strong>with</strong><br />
fine-particle styrene-acrylonitrile-copolymers (SAN filler polyethers) as well as PHD filled polyethers.<br />
These polyols filled <strong>with</strong> polyurea are available exclusively from Bayer MaterialScience AG and<br />
increase the foam hardness as well as the SAN grades while also helping to comply <strong>with</strong> special fire<br />
safety standards.<br />
<strong>BaySystems</strong> creates your <strong>customized</strong> Bayfit ® system from these raw materials and other additives.
Living science<br />
Entirely in keeping <strong>with</strong> the spirit of the discoverer of polyurethanes,<br />
Prof. Dr. Otto Bayer (1902–1984), research and<br />
development is an integral part of our employees’ day-to-day<br />
activities at <strong>BaySystems</strong>. Recent results of this work include<br />
the development of viscoelastic foams and new processes<br />
designed to improve flame retardance properties, to name<br />
but two examples.<br />
The following notes apply to the typical values given below.<br />
Mechanical properties: These values are intended as a guide<br />
only and must be checked in each individual case on finished<br />
parts under the processor’s production conditions.<br />
Flame retardance: The methods described in this publication<br />
for testing the fire performance of polyurethane and the<br />
results quoted do not permit direct conclusions to be drawn<br />
regarding every possible fire risk there may be under service<br />
conditions. Furthermore, this does not release the producer<br />
of the finished parts from the obligation to carry out suitable<br />
tests on his end product <strong>with</strong> respect to fire performance<br />
and/or fire risk in order to guarantee conformity <strong>with</strong> the<br />
required fire safety standard.
MDI-preps*<br />
MDI<br />
VT (TDI/MDI)<br />
HP-TDI<br />
++<br />
+<br />
++<br />
+<br />
* MDI-prep = MDI-based NCO prepolymers<br />
++<br />
+<br />
++<br />
+<br />
+<br />
+<br />
+<br />
++<br />
++<br />
+<br />
++<br />
+<br />
++<br />
+<br />
++<br />
++<br />
++<br />
+
Isocyanate type<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Tear resistance (N/m)<br />
ASTM D 3574-F-1995<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
Bayfit ® Home<br />
MDI-Prep<br />
System <strong>with</strong> a wide<br />
range of hardness for<br />
seats and backrests<br />
60<br />
75–110<br />
45–70<br />
75–110<br />
50<br />
2.9–9.2<br />
136–202<br />
94–110<br />
115–170<br />
6.7–8.9<br />
VT<br />
System <strong>with</strong> a<br />
low density and<br />
excellent flowability<br />
47.2<br />
75–110<br />
35–60<br />
75–110<br />
35–40<br />
1.0–5.7<br />
113–173<br />
91–135<br />
92–153<br />
4.8–9.2
Isocyanate type<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Tear resistance (N/m)<br />
ASTM D 3574-F-1995<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
Bayfit ® Office<br />
MDI-Prep<br />
System <strong>with</strong> a medium<br />
range of hardness<br />
designed for office chairs<br />
55.7<br />
75–110<br />
50–70<br />
75–110<br />
55<br />
2.4–7.2<br />
149–186<br />
93–109<br />
96–168<br />
5.7–7.5<br />
VT<br />
System <strong>with</strong> excellent<br />
flowability; stable even <strong>with</strong><br />
complex flow paths<br />
47<br />
75–110<br />
35–65<br />
75–110<br />
38–45<br />
1.3–4.5<br />
86–135<br />
86–118<br />
47–97<br />
5.3–9.7
Isocyanate type<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Tear resistance (N/m)<br />
ASTM D 3574-F-1995<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
Fire tests<br />
MDI-Prep<br />
Home & office system to<br />
meet e.g. French standards<br />
55.7<br />
75–110<br />
50–60<br />
75–110<br />
55<br />
2.4–7.2<br />
149–186<br />
93–109<br />
96–168<br />
5.7–7.5<br />
NF F 16-101 : M4<br />
FMVSS302<br />
Bayfit ® Public<br />
VT<br />
Home & office system to<br />
meet e.g. California TB117<br />
47<br />
75–110<br />
35–70<br />
75 – 110<br />
38–45<br />
1.3–4.5<br />
86–135<br />
86–118<br />
47–97<br />
5.3–9.7<br />
Calif. TB 117A (Vertikal)<br />
FMVSS302<br />
HP-TDI<br />
Melamine-free system<br />
for UK “Crib5”<br />
37.9<br />
80–100<br />
55–65<br />
85–95<br />
65<br />
4.5–5.4<br />
215–279<br />
126–130<br />
76–82<br />
5.2–10.2<br />
BS5852, Part-2 (Crib 5)<br />
FMVSS302
Isocyanate type<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Hysteresis H70 (%)<br />
DIN EN ISO 3386-1-1998-06<br />
Tear resistance (N/m)<br />
ASTM D 3574-F-1995<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
MDI-Prep<br />
For hospital<br />
mattresses in line<br />
<strong>with</strong> French<br />
LNE regulation<br />
67.7<br />
70–90<br />
75–90<br />
70–90<br />
75–90<br />
1.5–2.5<br />
48–52<br />
209–311<br />
174–182<br />
67–118<br />
0.8–1.3<br />
VT<br />
For hospital<br />
mattresses in line<br />
<strong>with</strong> French<br />
LNE regulation<br />
Bayfit ® Memory<br />
43.3<br />
70–90<br />
80–90<br />
75–90<br />
80–90<br />
1.8–2.5<br />
39–43<br />
94–159<br />
151–162<br />
62–81<br />
0.5–1.9<br />
MDI-Prep<br />
Low densities for<br />
pillows; foaming<br />
onto HR slabstock<br />
foam<br />
63.7<br />
60–80<br />
55–65<br />
60–70<br />
63–66<br />
0.75–1.25<br />
39–46<br />
94–113<br />
187–220<br />
43–68<br />
6.6–7.6
Isocyanate type<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Shore A hardness at 40 % (kPa)<br />
ASTM D 2240<br />
Tear resistance (N/m)<br />
ASTM D 3574-F-1995<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
Fire tests<br />
MDI-Prep<br />
System for sound absorption in<br />
electrical appliances <strong>with</strong> flame<br />
retardancy requirements<br />
50.4<br />
75–105<br />
75–80<br />
85–105<br />
78<br />
9.1–14.0<br />
n.a.<br />
200–231<br />
94–102<br />
167–244<br />
8.3–10.8<br />
UL94-HF2<br />
EN60950, Anh.7 - HF2<br />
Bayfit ® Tec<br />
MDI-Prep<br />
System for gaskets<br />
in car air filters<br />
31<br />
100<br />
400–500<br />
100<br />
400<br />
n.a.<br />
26–30<br />
n.a.<br />
150<br />
1000<br />
Isocyanate type<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Tear resistance (N/m)<br />
ASTM D 3574-F-1995<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
MDI-Prep<br />
All-round system<br />
Car seats<br />
57.4<br />
80–100<br />
45–60<br />
80–100<br />
50–52<br />
3.8–6.8<br />
115–145<br />
90–110<br />
95–140<br />
6.8–7.2<br />
VT<br />
System <strong>with</strong> high hardness<br />
and outstanding flowability<br />
39.2<br />
70–110<br />
43–63<br />
70–110<br />
42–60<br />
4.5–11.0<br />
197–289<br />
88–122<br />
158–245<br />
3.9–6.5<br />
Bayfit ® Automotive/seating
Isocyanate type<br />
Ver<br />
Processing window<br />
Mixing ratio<br />
at Index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Indentation Force Deflection at 25 % (kgf)<br />
JIS K 6400 - 1997<br />
MDI<br />
Robust system <strong>with</strong><br />
broad processing window<br />
38.2<br />
90–110<br />
80–110<br />
90–110<br />
75–82<br />
7.0–15.6<br />
–<br />
VT<br />
Excellent mold flow and very<br />
good elastic recovery<br />
33.0<br />
90–105<br />
70–90<br />
90–105<br />
70–75<br />
–<br />
29–42<br />
Bayfit ® Automotive/2-wheeler seating
Isocyanate type<br />
Ver<br />
Sample test values (continued)<br />
Tear strength (N/m)<br />
ASTM D 3574-F-1995<br />
Tear Strength (kgf/cm)<br />
JIS K 6400 - 1997<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Elongation at break (%)<br />
JIS K 6400 - 1997<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kgf/cm 2 )<br />
JIS K 6400 - 1997<br />
Compression set at 50% (%)<br />
DIN EN ISO 1798-2001-03 / JIS K 6400 - 1997<br />
MDI<br />
Robust system <strong>with</strong><br />
broad processing window<br />
235–305<br />
–<br />
95–112<br />
–<br />
130–205<br />
–<br />
3.5–8.3<br />
VT<br />
Excellent mold flow and very<br />
good elastic recovery<br />
–<br />
0.95–1.05<br />
–<br />
100–110<br />
–<br />
3.0–3.4<br />
3.0–4.0<br />
Bayfit ® Automotive/2-wheeler seating
Isocyanate type<br />
OEM approval<br />
Processing window<br />
Mixing ratio<br />
at index 100 (100 polyol : X isocyanate)<br />
Index range<br />
Density range (kg/m 3 )<br />
Sample test values<br />
Index range<br />
Density (kg/m 3 )<br />
DIN EN ISO 3386-1-1998-06<br />
Compressive strength at 40 % (kPa)<br />
DIN EN ISO 3386-1-1998-06<br />
Elongation at break (%)<br />
DIN EN ISO 1798-2000-01<br />
Tensile strength (kPa)<br />
DIN EN ISO 1798-2000-01<br />
Compression set at 50 % (%)<br />
DIN EN ISO 1856-2001-03<br />
Loss factor<br />
BMW oscillation-damping test<br />
Emission and aging tests<br />
MDI<br />
VW, Daimler<br />
Elastic system<br />
for closed<br />
mold filling<br />
53.2<br />
65–80<br />
50–75<br />
67–73<br />
57–59<br />
5.8–6.3<br />
82–84<br />
80–99<br />
5.2–5.8<br />
0.19–0.20<br />
In line <strong>with</strong><br />
OEM approval<br />
MDI<br />
VW, Audi, Scania<br />
Elastic system<br />
for open<br />
mold filling<br />
74.4<br />
90–110<br />
50–80<br />
98–109<br />
55–59<br />
12.8–15.8<br />
74–78<br />
216–245<br />
6.7–10.2<br />
0.20–0.27<br />
In line <strong>with</strong><br />
OEM approval<br />
MDI-Prep<br />
Daimler<br />
Viscoelastic system<br />
69.0<br />
75–85<br />
60–75<br />
75<br />
58–63<br />
3.48–3.91<br />
132–199<br />
105–111<br />
7.7–8.3<br />
0.28–0.35<br />
In line <strong>with</strong><br />
OEM approval<br />
Bayfit ® Automotive/sound absorption
This information and our technical advice – whether verbal, in writing or by way of trials – are given in good faith but <strong>with</strong>out warranty,<br />
and this also applies where proprietary rights of third parties are involved. Our advice does not release you from the obligation to verify<br />
the information currently provided – especially that contained in our safety data and technical information sheets – and to test our products<br />
as to their suitability for the intended processes and uses. The application, use and processing of our products and the products<br />
manufactured by you on the basis of our technical advice are beyond our control and, therefore, entirely your own responsibility. Our<br />
products are sold in accordance <strong>with</strong> the current version of our General Conditions of Sale and Delivery.<br />
Edition: 2008-03<br />
Order no.: MS00026627<br />
Bayer MaterialScience AG<br />
<strong>BaySystems</strong><br />
51368 Leverkusen<br />
Deutschland<br />
www.bayer-baysystems.com