Lubrication &
Industrial Maintenance
Protéger &
allonger la durée de vie
Bonding & Gasketing
Assembly &
Conformal coatings
Partner of the world's leading names in solutions that improve the quiet
comfort of vehicles.
Process & Implementation
CORPORATE COMMITMENT
A HISTORY OF EXPERTISE
SELECTOR GUIDE
Samaro® is committed to protecting and extending the lives of components, equipment and
people. We inform our partners of our stakeholders's needs in order to codesign the products of
today and tomorrow.
Samaro® has been guiding its customers in defining lubrication and bonding solutions for more
than 35 years. This close collaboration, which involves our preferred partners, allows us to meet
the strictest requirements for OEM applications.
Our teams also participate in production site audits in order to streamline SKUs and extend the
maintenance intervals of your machinery.
Samaro® regularly publishes Selector Guides for
various industries, chemistries and technologies.
This new Selector Guide of solutions for reducing
automotive interior noise is designed to help you
find industry-proven solutions.
We know that every application is not the same. If
you are ever in doubt, do not hesitate to contact
our technical experts for assistance in finding the
right solution for your specific applications.
The following pages provide information on how
to find the right solution for your needs.
COMPREHENSIVE SOLUTION
Our collaboration with manufacturers of dispensing equipment enables our teams to provide
you with comprehensive solutions that take all
the worries out of implementing lubrication or
bonding solutions, from their design to their production.
Possibility of passenger contact?
YES
NO
Is a solution that does not involve disassembly required?
YES
Friction or shock?
Friction
Krytox® GPL 105
PFPE oil with very
low surface tension,
compatible with
all plastics and
elastomers
Krytox® GPL 103
PFPE oil with very
low surface tension,
compatible with
all plastics and
elastomers
NO
YES
Friction or shock?
Shock
Dow Corning® 7091
Neutral-cure adhesive
sealant
Dow Corning® 7092
High green strength neutral-cure adhesive sealant
Merbenit® HM-21
Multi-purpose MS polymer
adhesive
Hutchinson® Total Seal 34
Polyurethane sealant
Is a solution that does not involve disassembly required?
Friction
Molykote® D96
Water-based
anti-friction coating
compatible with
leather, plastics and
elastomers
DuPont® DryFilm
PTFE lubricating
film for a neat, clean
appearance
Friction or shock?
NO
Is a non-staining solution required (contact between materials)?
Friction
Krytox® GPL 105
PFPE oil with very
low surface tension,
compatible with
all plastics and
elastomers
Krytox® GPL 103
PFPE oil with very
low surface tension,
compatible with
all plastics and
elastomers
YES
NO
Friction or shock?
Shock
Dow Corning® 7091
Neutral-cure adhesive
sealant
Dow Corning® 7092
High green strength neutral-cure adhesive sealant
Merbenit® HM-21
Multi-purpose MS polymer
adhesive
Hutchinson® Total Seal 34
Polyurethane sealant
Friction
Molykote® D96
Water-based
anti-friction coating
compatible with
leather, plastics and
elastomers
Molykote® G-1057
Non-staining grease
Friction or shock?
Shock
Molykote® 111
Damping compound
and sealant
Friction
Molykote® D-321 R
Anti-friction coating for high
loads
Krytox® GPL 205
PFPE grease compatible with all
plastics and elastomers
Molykote® EM-30L
Multi-purpose PAO grease
Molykote® EM-50 L
Multi-purpose damping grease
Molykote® AI-6159
Grease with high noise reduction properties
Molykote® G-807
Low-friction grease
Oils
Wettability
allow the maximum number of bonds to form
between the liquid and the substrate.
• The surface tension of an oil to be used must
be less than the surface energy of the solid
considered.
The wettability of a solid by a given liquid is characterized by the contact angle of a drop of liquid deposited on a solid.
The best possible wettability is necessary to
Service
temp.
range
Solution
Krytox®
GPL 105
Krytox®
GPL 103
-36°C
-60°C
PassenNon-staiPermanent
ger
ning
assemblies
contact
contact
+204°C
+154°C



Silicone
free
O

O
Type and form
• Surface tension is inverse to temperature and
pressure, hence their favorable action.
Thanks to their low surface tension, Krytox®
lubricants can wet
all metal and plastics surfaces, including
polypropylene and polyethylene.
Properties
Packaging*
& SKUs
Typical applications

Eliminates friction noise
PFPE oil • Viscosity: 160 cSt at 40°C Eliminates squeaks for interior
on plastic/plastic interior
• Evaporation loss: 1% after 22 hr at components • Eliminates stickcomponents for parts that
121°C • Chemically inert • Compa- slip noise • Broad material
may come into contact with
tible with plastics and elastomers
compatibility • Non-staining
passengers

Eliminates friction noise
PFPE oil • Viscosity: 60 cSt at 40°C • Eliminates squeaks for interior
on plastic/plastic interior
Evaporation loss: 7% after 22 hr at components • Eliminates stickcomponents for parts that
121°C • Chemically inert • Compa- slip noise • Broad material
may come into contact with
tible with plastics and elastomers
compatibility • Non-staining
passengers
57 g
500 g
DNKGPL10557G
DNKGPL105500G
57 g
500 g
DNKGPL10357G
DNKGPL103500G
* For other types of packaging, contact us.
PFPE oils can be thinned with fluorinated solvents to allow them to be deposited in much
thinner layers. This opens up a wide range of
cost-efficient industrial process solutions (dip
coating, dip-spin coating, spraying and aerosol spraying). Samaro can help you determine
and implement the right solutions for your
needs.
Anti-friction coatings
Anti-friction coatings provide lubrication
that is dry, clean and not affected by dust,
contaminants or moisture (lifelong lubrication in most cases).
Solution
Molykote®
D-96
Molykote®
D-321R
DryFilm Ra
Dispersion
Service
temp.
range
-40°C
-180°C
+80°C
+450°C
260°C max.
PassenNon-staiPermanent
ger
ning
assemblies
contact
contact

O

O
O
O

O

Anti-friction coatings can be compared to industrial paints in which the pigment is replaced by solid lubricant particles.
The roles of anti-friction coatings are to ensure
lasting corrosion protection and effective lubrication.
Silicone
free
Type and form
Properties
Typical applications

Water-based dispersion of PTFE
solid lubricant with an organic binder • Dries to a transparent lubricating film in 10-15 minutes at room
temperature • Full cure within two
hours • Solid film
Reduces difference between coefficients of static and kinetic friction to
reduce or eliminate stick-slip noise
in material combinations: plastic/
plastic • metal/plastic • plastic/
leather or leather/leather
Glove boxes, door
trims • Dashboards/
consoles • Instrument
panels • Clips & fasteners • Leather seats


Anti-friction coating for metal/
metal combinations involving For metal/metal combinations • Air Side/rear view mirror
mechamedium-fast movements and drying • Avoidance of stick slip • High adjustment
ageing resistance
nisms
high loads • Cures at room temperature to a film in 5 minutes.
Dry lubrication deposited in the Interior auto parts
Micronized PTFE dispersions used
form of a dispersion • Very low coeffi- (leather, plastic, elasfor long-lasting lubrication
cient of friction
tomers)
Packaging*
& SKUs
5 kg
MK7450Z
400 ml
MK6730
13.6 kg
1 kg
MK6700
90.7 kg
inquire for details
* For other types of packaging, contact us.
Greases
Thick or semi-fluid dispersions of a thickening
agent in a lubricating liquid. High-performance
greases are designed for dynamic metal-to-metal, metal-to-rubber, metal-to plastic and plastic-to-plastic applications. Most greases are
Solution
Service
temp.
range
PassenNon-staiPermanent
ger
ning
assemblies
contact
contact
Krytox®
GPL 205 -36°C +204°C
Molykote®
EM-30L -45°C +150°C
Molykote®
EM-50L -40°C +150°C
Molykote®
G-1057 -50°C +150°C
Molykote®
AI-6159 -40°C +150°C
Molykote®
G-807 -40°C +150°C
Molykote®
-40°C +200°C
111
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Type and form
mance fluorinated greases are designed for
extended service at higher temperatures and
higher loads and in harsh chemical environments.
Properties
Packaging*
& SKUs
Typical applications

Eliminates squeaks for interior
PFPE • PTFE • White • Compatible
components • Eliminates stick-slip Plastic gears • Lubricawith plastics and elastomers (inclunoise • Broad material compatibition of O-rings
ding for O-rings) • 4-ball test: 8000 N
lity

Mirror actuators •
PAO • Lithium • White • PTFE and Solution for most material combina- Interior switches • Door
other solid lubricants • Minimum tions • Eliminates noise from elec- locks, actuators• Suntromechanical devices
roof guides • Audio,
evaporation • 4-ball test: 3800 N
media controls

O
O
Silicone
free


O
based on synthetic formulations that have
excellent resistance to thermal degradation.
Many are fortified with solid lubricant additive
technology to provide effective lubrication
under extreme load conditions. High-perfor-
Airbag modules •
Compatible with most plastics •
PAO • Lithium • Translucent • WitActuator plastic gears
Non-soiling • Good adhesion • Noise
• Seat tracks • Interior
hout solid lubricants • High base oil
damping • Reduces noise and vibraswitches • Navigation
viscosity • 4-ball test: 1400 N
tions for a better ride
systems
Compatible with most plastics •
PAO • Lithium + co-polymer (no
Non-soiling • Good adhesion • Does
bleed) • Translucent • Without solid
not stain fabrics • Noise damping •
lubricants • High base oil viscosity •
Reduces noise and vibrations for a
4-ball test: 1400 N
better ride
Tracks of panoramic sunroof sliding
shades• Assistance in
the fitting of soft-top
stiffeners

Lubrication of
PAO • Lithium • White • PTFE and High effective noise reduction • adjustment and gear
other solid lubricants •
Low cold starting torque • Compa- mechanisms • Lubricatible with plastics
tion of vehicle window
4-ball test: 1700 N
regulator guides
O
Silicone compound • PTFE • White •
Very low coefficient of friction • ForVery good compatibility with plasmulated for plastic/metal and metal/
tics and elastomers • High base oil
rubber applications
viscosity
O
Silicone compound • Inorganic
thickener • Translucent • High base
oil viscosity
Noise damping • High adhesion
• Compatible with plastics and elastomers • Wide service temperature
range • Excellent water washout
resistance
57 g
227 g
DNKGPL20557G
DNKGPL205227G
1 kg
MK3050
1 kg
16 kg
MK3180
MK3175Z
1 kg
MK1057-1 kg
16 kg
MK6159
Ball joints • Brake
caliper pins
25 kg
MK3960
HVAC controls •
Parking brake cables •
Pedal position systems
100 g
MK3500
1 kg
MK3510
Sealants
The following products are engineered for applications that require strong yet flexible adhesion, such as for bonding materials with different thermal
expansion rates.
Solution
Service
temp.
range
Dow Corning® -55°C +180°C
7091
Dow Corning® -55°C +180°C
7092
Merbenit®
HM-21
Hutchinson
Total Seal 34
-40°C
-40°C
+90°C
+90°C
PassenNon-staiPermanent
ger
ning
assemblies
contact
contact




O
O
O
O




Silicone
free
Type and form
Typical applications
O
One-part silicone adhesive
sealant• Neutral cure • White •
Multi-purpose
Glass/metal bonding • Plastic/metal bonding •
Painted/unpainted metals
O


One-part silicone adhesive sealant•
For high rates • Glass/metal bonding • Plastic/metal bonNeutral cure • White • Multi-purpoding • Painted/unpainted metals
se, high green strength
Multi-purpose MS Polymer adhesive with a long setting time
Multi-purpose polyurethane
sealant
Multi-purpose, isocyanate-free bonding with paintable
joints
Packaging*
& SKUs
310 ml
White
DC8900
Black
DC8920
White
DC7092B310
Black
DC7092N310
White
MBHM21B
Black
MBHM21N
Gray
LJ34G-310
310 ml
290 ml
Multi-purpose sealing
310 ml
* For other types of packaging, contact us.
NVH
NVH stands for Noise, Vibration and Harshness, where noise is an unpleasant or
unwanted sound created by vibrating objects,
vibrations are repetitive motions at a given frequency regardless of direction, and harshness
is what is felt following an impact.
These three physical phenomena distract the
senses – hearing, sight and touch, respectively
– of motorists and passengers and detract
from their riding comfort.
Technical advances in the auto industry have enabled material and acoustical engineers to eliminate the most annoying noises to passengers.
Their work is never-ending, for quieting one noise
ding improvement can be illustrated by the following virtuous circle, which is well known in the
automotive world:
Main sources of NVH:
O
immediately unmasks other noises that were previously perceived as acceptable. This never-ention
isa ts
i
im
pt es bru
d oteur
m
Plainte à propos
des bruits de roulement
Optimisation des bruits de roulement
Plainte à propos
des bruits aérodynamiques
Adaptabilité de l’oreille humaine
Automotive noise can be divided into two
main categories:
- Noise caused by contact between metal parts.
- Noise caused by contact between parts made of
different materials (plastic, elastomer, leather,
wood, metal, etc.).
Lubrication is known and recognized as a
means to eliminate noise.
• Engine and suspension noise is not discussed
in this brochure (metal-on-metal contact). Through
its partners, Dow Corning (Molykote©) and
DuPont (KryTox©), Samaro carries a complete
range of solutions for all these applications.
Their technical sophistication and high quality
have won over automotive OEM engineers in the
Americas, Europe and Asia. Samaro can guide
you in selecting its partners' special lubricants.
Noise from friction between dissimilar materials
usually occurs in vehicle interiors and sometimes on vehicle exteriors. Noise in automotive interiors is primarily caused by friction
Optimisation
des bruits du mobilier / accessoires
between components.
Physically speaking, such noise can be divided
into two main categories depending on the
continuity of the movement involved: noise
from mechanical instability (stick slip) and
harshness noise (NVH).
Friction is the force that resists the motion
(loss of energy) of surfaces sliding against each
other. It can be static or kinetic and is measured by the coefficient of friction (μ). Friction
depends on the real contact area between a
pair of surfaces and the interaction type and force.
The latter makes up adhesion (tendency of mechanical surfaces to cling to one another), roughness
and local deformation.
When friction occurs, energy is dissipated as heat
energy and radiated acoustic energy (vibrations
self-excited by the interaction of both solids), or
friction noise. Eliminating friction noise requires
eliminating the friction between a pair of surfaces.
This is done by either reducing the adhesion of the
on
ati
mis s
Opti bruit i
des yna m
d
aéro
es
Plainte à propos
des bruits
du mobilier / accessoires
qu
Plainte à propos
des bruits moteur
surfaces or by minimizing the influence of surface
roughness. To some extent, this comes down to
changing the coefficient of friction of the pair of surfaces. There are three ways to achieve this:
• By changing the materials used, which would involve rethinking their design.
• By changing the surface quality of materials, which
would involve re-engineering the manufacturing
processes used.
• By adding a lubricating interface between contacting surfaces. A second type of noise is possible when contacting parts are exposed to
vibrations and create noise through repeated
shocks.
Called "shock-associated noise", it is caused by
normal, random contact between parts from
impacts. Shock-associated noise is the radiation arising from the sudden acceleration of
rigid bodies, followed by radiation from the
structures. The key parameters to take into
account to solve this problem are speed of
impact, force of impact and contact surface.
Our products counteract this by adding a
shock-absorbing interface.
This brochure presents the technical solutions
to NVH offered by Samaro through its partners.
DOSA- 27- NVH Selector Guide - Version 0 - October 8, 2014