Automotive interiors - Materials and surfaces 2016. Integration of Design and Function, today and in the future. By Stefan Buri.

1. Automobile Innenraum-Materialien & Oberflächen
Integration von Design und Funktion – heute und in der Zukunft.
Tagung Mobile Klimatisierung, Ostfildern, Stefan Buri, 19.10.2016

2. Discover our innovative technologies for interior
materials used in the Rinspeed Σtos concept car

3. Who is Stahl?

5. Stahl´s multiple
touchpoints in
premium car
interiors
Stahl: the leading car interior
materials surfaces expert.

6. 23 11
600
38
> 1.800
Plants
Countries
People
worldwide
Application
Labs
Sales
technicians
9
R&D Centers
Operational Excellence

8. Trends &
Demands
Global automotive interior materials
supply chains

9. Global Automotive interior materials supply chains
Interior Trends
§ Importance of car interior is growing.
§ OEMs upgrading its models by choosing more premium interior materials. More soft-touch materials, dynamic volume
growth of material classes.
§ Interior materials and A-surfaces play a vital role to comfort, perceived quality and luxurious appeal.
§ Trend towards light interior colors
§ Multiple migration / substitution effects of interior material classes (upgrading / de-contenting).
§ Growing demand for more sustainable materials and technologies (e.g. water-based, low-emission, green technologies)
§ Leather and coated synthetic trims are the materials of choice for premium car buyers worldwide.
Automotive interior materials market
35 15
10
300
70 60
190
Hardplastics &
decorative
surfaces***
Fabrics PVC Slush PU spray moulding
- Recticel
Microfibre In mould coating -
IMC
Coated synthetic
trim - PVC
Coated synthetic
trim - TPO
Coated synthetic
trim - PU
Genuine Leather
trim (Auto)
0
50
100
150
200
250
300
350
Mio m2 / year
Stahl surface & substrate expertise
6-20% CAGR**
3% CAGR*
*Source: LV production forecast, IHS ; **Source: CAGR% segment assessment, Stahl; *** e.g. PP, ABS, Chrome, Wood, coated hard-plastics (e.g. piano black), screens, foot mats etc.
Stahl team assessment
OEM model
upgrading
De-contenting

10. Tier 3:
Surface Technology / Chemistry
Tier 2:
Materials Manufacturers
Tier 1:
Component / Systems Integrators
OEM / Assembly
+
Know-How
Technology
Steering wheel
Dashboard
Sun visor
Middle console
Glovebox
Seat covers
Headrest
Gear shift
Other
applications
Door trims
EPDM profiles
PVC
PU
TPO
Leather
EPDM
Fabric
Why premium OEMs
co-operate with Stahl
§ World-market leader in its
segments
§ Best-in-class surface
Know-How
§ Off the shelf OEM solutions
§ Technology- & innovation
§ leadership
§ Global footprint
§ Quality consistency &
interior harmony
Stahl business model along the supply chain
Stahl root strength

11. Automotive interior surface materials: usage
Stahl team assessment
Automotive Leather & Synthetics –
Today
Automotive Leather & Synthetics –
25 years ago
Automotive Leather
Automotive Synthetic Seat & Trim

12. Interior
Harmony
Stahl Design Inspirations.
The perfect match.

13. For an enhanced customer
experience.
Engineering
interior
surfaces

14. Structure of the finish
Impregnation
Topcoat
Leather
Grain
Pre base
Base coat

15. Three coats in general
Structure of the finish
1. Prebase
Levels the uptake of the leather and is responsable for the adhesion. Many possibilities
like adhesion ground, polish ground, buffing ground, impregnation ground
2. Base Coat
Essential for the color, unity of the color and for improvement of the physical
properties.
3. Top Coat
Takes care of the fixation of the leather and for the end look. Also for gloss and grip.
Responsable for the good physical properties

16. Processing of Leather
Some principles
Aniline leather, Pores completely visible, no extra labour
on grain side
Semi aniline leather, light pigmentation, pores still open
Covered leather, Surface is covered with resin and pigment
Grained leather, Surface is covered with resin and pigment and
then embossed with a small grain plate, this will give a uniform
grain appearance
Corrected grain leather, natural grain is completely removed.
Surface is pigmented heavily with resina and pigment and
embossed with a coarse grain plate, this will give also a uniform
but artificial grain appearance

17. Structure of the finish
Top Coat
Today only aqueous top coat systems are used. The film forming of these products
are a little different from the NC lacquers.
Processing of Leather: Finishing
Phase 1
Water evaporates
Phase 2
Particles compress
Phase 3
Film forming after
plating or embossing

18. PolyMatte® - how can something “dull” be so
exciting?

19. The challenge
■ Matt surfaces are becoming increasingly popular. However,
most matting agents weaken the coating due to its rough structure
■ Many finishing technologies are not matt in itself
Our solution
■ Polymatte®: a proprietary Stahl polyurethane dispersion technology which
is compatible with water-based, polyurethane coatings.
■ A smooth finishing technology that is matt in itself and gives a warm feel
and pleasant touch
■ Exceeds other matting agent technologies in terms of flexibility, scratch
and anti-squeak. Does not polish.
Silica
modified coating
(2500x)
Organic duller
modified coating
(2500x)
Polymatte®
modified coating
(2500x)
PolyMatte® - Key building block for finish systems
& global industry reference

20. OEM requirements on interior material surfaces
A balancing act tailored to OEMs individual needs
Interior Harmony
Quality consistency of class A surfaces
independent of car interior component
and substrate used (Leather, PVC, PU,
PVC, TPO, fabrics etc.)
Design / Styling
Sensorial Experience:
natural appearance, color, low-gloss (not
burnish), haptics, softness, smell etc.
Sustainability / Emissions
Fogging, VOC, smell, sustainability
criteria
Physical performance
Abrasion, rub fastness, moisture resistance, bally
flex, UV resistance, heat resistance, anti-squeak,
anti-soil, anti-stain (dye ingress)

21. Chemistry-enabled innovations
for an enhanced customer-
experience.
Future vision
interior
surfaces

22. Green &
clean
Smart
Appeal
Tast
e
Sight
Hearing Smell
Touch
The customer experience –
engaging with the 5 senses
The future car interior

23. Stahl Glow in the Dark technology
Launched in Rinspeed Etos, CES Las Vegas, Jan 2016

24. Interior Air Quality
Consumer awareness raising, (China) regulations increasing
§ Formaldehyde
§ NMP / NEP
§ Acetaldehyde
§ Hydrocarbons
§ Toluene
§ Amines
§ Ketones
§ Esters
The desirable “new car smell”:
“Interior Air Quality as emerging differentiating factor to premium
OEMs.”
Enabler: low VOC technology range for interior materials
The chemical emissions from materials are responsible for it

25. Premium OEMs: how should leather and “leather-
alike” interiors smell?
“VW Leather seats have to smell like leather“
“The best smell to BMW is no smell”
“Neutral smell”
“The only smell is “leather”
“final aim, to avoid any type of smell”
“Minimize all types of smells”
OEM criteria for smell:
Emissions & Smell: highly complex, often subjective topic. Currently “hot” in China.

26. And demand for surface
protection is increasing
Vision: lotus-effect
Pale colours in car
interiors have come
to stay
Stahl 3rd generation Stay Clean technology

27. And it’s
easy to
See why
And it´s easy to see why.
Soiling: It´s a
major pain to all
customers in the
world

28. To protect light surfaces
against typical stains, we
developed Stay Clean.
Stay Clean

29. From Biomass to Base Coat
Stahl’s Bio-based PolyMatte:
Natural touch & feel / performance / sustainability credentials

30. Processing of Leather: Finishing
PT
PENETRATOR
RB
BUTADIENE
RA
ACRYLICS
RI
IMPREGNATION
RESIN
RU
POLY-
URETHANE
RH
HYBRID
RESIN
RC
COMPACT
RESIN
SU
SOLVENT
URETHANE
FI
FILLER
[OIL/WAX]
LS
SOLVENT
LACQUER
WATER
LACQUER
BI
CASEIN
BINDER
LD
LIQUIDDYE
HM
HAND
MODIFIER
LP
LACQUER
PIGMENT
PP
PIGMENT
XR
CROSSLINKER
SD
SOLVENT
DULLER
WD
WATER
DULLER
WT
WATERTOP
MA
AUXILIARIES
RM
RHEOLOGY
MODIFIER
LA
LEVELLING
AGENT
DL
DILUENT
WR
WATER
REPELLANT DEFOAMER
DF
VELOCE
FINISH
VF
BM
BEAUTY-
MAKER
TF
TECHNICAL
FOIL
MIRAGE
UPGRADING
AMERICAN
STYLE
AS
FO
FILLER
[OIL]
LW/AL

31. Automotive Center of Excellence
for OEMs, Tiers and business
partners.
Partnerships

32. We create responsible
partnerships that spark
innovation and open up
endless possibilities

33. Stahl Automotive Center of Excellence
Inaugurated Sept 2015, Waalwijk, The Netherlands

37. Stahl Automotive: the car interior
surfaces expert – root strengths
Auto &
Non-Auto
insights
Business model &
partnerships
Know-how
(application
formulation,
chemistry)
Global
footprint
Technology
Interior Harmony

38. Rinspeed Oasis concept 2017:
Stahl to unveil “not-seen” interior surface technology in
upcoming concept at CES Las Vegas, Jan 2017

39. We believe that if it can be
Imagined, it can be created.
Stefan.buri@stahl.com | www.stahl.com

40. Stahl Glow in the Dark technology
Launched in Rinspeed Etos, CES Las Vegas, Jan 2016
Glow in the dark:
New mobility
experience at night-
time

41. Stahĺs core proposition for car interior builders
End-to-end leather solutions
Interiorharmony
Synthetic Seat & Trim
Auto Leather crust Auto Leather finish

42. Design Inspiration 2016