By Jeff Wright
WEST SYSTEM Six10 is a two-part,
pre-thickened epoxy adhesive formulated
with properties that make it perfect for many
adhesive applications. Compared to other
ready-to-dispense adhesives, its particular
physical properties makes it ideal for such
applications as stitch and glue boat construction, fiberglass laminate repair and general
bonding. This new formulation has a good
balance between the elongation and toughness of G/flex and the strength and stiffness
of our 105 Resin-based epoxies. You can use
it with as many materials as possible including wood, metals and composites. The long
working time with fast thru-cure and unique
shear thinning are additional characteristics
formulated into Six10 that contribute to it's
ease of use.
WEST SYSTEM Six10 features explained
Experienced WEST SYSTEM users are familiar
with the handling characteristics of 105 epoxy thickened with 406 Colloidal Silica Filler that allow it to be non-sagging, yet
trowel easily. Six10 adhesive provides the
same handing properties right out of the
cartridge, but achieves it with shear thinning,
a property that allows the viscosity of the adhesive to become lower when a shear force is applied. A shear force is applied when the
epoxy is mixed or spread out over a surface,
which causes the viscosity of the Six10 to become lower resulting in a "thinner" consistency. When you are done applying or mixing Six10 and it is no longer being worked,
or "sheared," it will start to increase in viscosity and develop a thicker consistency. This shear thinning property enables Six10
to be easily dispensed out of the coaxial cartridge and through the static mixer and then tooled smoothly into a fillet that won't sag during the cure cycle. The shear thinning property also enables Six10 to be used for
wetting out light to moderate weight reinforcing fabrics such as fiberglass and carbon fiber. This feature makes the product convenient for performing small fiberglass boat repairs. If you use a stiff plastic spreader, Six10 can wet out any fiberglass fabric lighter than
12 oz per square yard as a result of its shear thinning characteristics.
Six10's cure profile also has some handy features. Our chemists developed the hardener
to provide a long open time but fast
thru-cure. With a pot life of 42 minutes,
WEST SYSTEM Six10 will provide over an
hour of working time in a thin film but will
achieve an initial cure in just 5-6 hours. An
additional characteristic of Six10's cure profile is that sufficient working time is maintained in warm temperatures. The long open
time also means that the epoxy will stay
workable in the static mixer for 42 minutes,
which is very practical for long or complicated assemblies.
All adhesives rely on good surface "wet out"
and saturation to achieve a good bond to the
substrate. Six10 has a viscosity high enough
to resist sagging but can still saturate and
wet-out a surface without pre coating, thanks
in part to shear thinning. Our chemists accomplished this formulation by using an ingenious filler package in both the resin and
With the 600 Static Mixer attached to the
Six10 cartridge, it's easy
to lay down a bead of
thickened epoxy adhesive right where you
The consistency and of
Six10 Adhesive is perfect for fillets.
The physical properties of WEST SYSTEM
Six10 were developed to ensure good adhesion in many applications. The charts above,
illustrate the properties of our G/flex and
105 Resin-based epoxies compared to WEST
SYSTEM Six10 and illustrates how Six10 fits
in nicely between the high strength of 105
Resin-based combinations and the toughness of G/flex. As we discussed in Epoxyworks 25,
G/flex was formulated to be flexible enough
to work in many unique situations but 105
Resin-based epoxies are still recommended
for applications where a stiff laminate is required. WEST SYSTEM Six10 has a modulus
slightly lower than a 105 Resin epoxy, making it appropriate for many applications
where a filled a 105 Resin-based epoxy
would be used. When G/flex is used to laminate lightweight fiberglass cloth, the result is
a flexible laminate. Six10 will create a fiberglass laminate much closer to 105 Resin epoxy laminate properties. Six10 will wet out
fabrics up to 12 oz per sq yd. For heavier
fabrics a 105 resin epoxy with its low viscosity should be used to ensure thorough fabric
A comparison of the physical properties of WEST SYSTEM G/flex, Six10 and 105 Resin/206 Slow Hardener epoxies at room temperature.
WEST SYSTEM Six10 convenience
Six10 were developed to ensure good adhesion in many applications. The charts above, illustrate the properties of our G/flex and 105 Resin-based epoxies compared to WEST SYSTEM Six10 and illustrates how Six10 fits
in nicely between the high strength of 105 Six10 can be used for many of the same jobs where a thickened 105 Resin-based epoxy is
appropriate, it is a useful adhesive that adds convenience to the versatile WEST SYSTEM product line. It is completely compatible
with all other WEST SYSTEM products so that it can be used on top of or underneath any 105 Resin-based epoxy, whether cured or
uncured. We carefully formulated it for use in many applications where strength and adhesion are important.
Our Technical Advisors are available to answer any questions about WEST SYSTEM Six10. You can reach them at 866-937-8797 (toll free) or through email (firstname.lastname@example.org). We will look forward to hearing your comments about Six10.
Two parts-One cartridge
WEST SYSTEM Six10 Thickened Epoxy Adhesive
is packaged in specially designed, self-metering cartridge. This innovative container provides many useful features:
- It separates the resin and hardener for long
- It accurately meters the proper 2:1 resin/hardener ratio
- It dispenses the amount desired
- It fits into a standard caulking gun
The cartridge works by utilizing the movement
of the piston to simultaneously dispense the
resin and hardener from separate chambers.
The molded chambers and passageways accurately control the ratio and prevent the resin
and hardener from contacting each other until
they are outside the cartridge.
Our technical advisors and chemists extensively tested the performance of the cartridge
and 600 Static Mixer to ensure accurate metering and thorough mixing of the Six10 resin and
hardener. The reliability of WEST SYSTEM Six10 in
the self-metering cartridge meets the high
standards our customers expect from a WEST
EPOXYWORKS Number 27, Fall 2008
Copyright 2008, Gougeon Brothers, Inc. All rights reserved.
Reproduction in any form, in whole or in part, is expressly forbidden without the consent of the publisher. EPOXYWORKS, Gougeon Brothers, WEST SYSTEM, Episize, Scarffer and Microlight as used throughout this publication, are trademarks of Gougeon Brothers, Inc., Bay City, Michigan, USA.