Epoxy
Coatings and Adhesives
Solventless, room temperature
stable, one-part products that are applied by spray, dip or syringe and
then hardened (cured) by UV or visible light. These materials can also
be made to cure with heat as well, or by a “combination cure” that exposes
assemblies to light and then heat to cure areas that were hidden from the
light.
Another unique technology
is the “delay cure” process. Special CTECH structural epoxies can be applied
to a substrate, exposed for a short time or to low intensity light, wherein
a delay of seconds to minutes is then enabled for assembly. Fixturing of
the assembly is complete within seconds.
Opaque material bonding and
the use of low cost lamps open new applications with CTECH delay cure products.
Proprietary chemistry now allows any of our UV epoxies to be formulated
into two component UV multiple cure mixes. UV can still be used for immediate
fixturing and handling while room temperature cure of deep or dark areas
will proceed as parts are moved on or packaged. CTECH is in the forefront
of offerings for uses of specialty epoxies.
UV Acrylates
With lower odor and reduced
health risks compared to similar products, CTECH meets or surpasses performance
standards. These products are in use bonding glass and plastics. CTECH
is also introducing proprietary “no shrink” acrylate materials. These materials
have shrinkages upon UV curing that approach the low levels of epoxies
– a significant benefit over other UV acrylates to produce non-stressed
bonds for better adhesion or in large area use.
Unique Thiol-ene Chemistry
This is the third leg of
CTECH’s chemistry portfolio. CTECH has revitalized this technology that has been
the mainstay of UV cure decorative coatings for decals and labels as well as
sealants. CTECH has developed new art for these large decorative
markets. A further development in our version of this chemistry has created
structural adhesives, which is an area not successfully captured in the
past.
UV Curing Lamps
CTECH presents a full line of curing lamps and associated
equipment to complement our chemistry. Lower cost and equivalent performance to the competition characterize
our products.
The CT100-NF is a very low cost UV lamp that cures proprietary
CTECH chemistry for coating and structural applications. CTECH also provides a 7" x 6" flood lamp series as
stand units or conveyorized, a 50W/100W wand series and through our partner, dispenser and custom conveyors
and equipment.
UV B and C Stage Processes
“B stage” epoxies are currently
used in many applications where a film or bead is transferred to another
substrate or location and then an assembly created which is cured to its
final C stage thermoset by heat.
CTECH has introduced a full
line of proprietary technology that allows UV curing to be used at either
the B or C stage of this process. Advantages include lower heat or no heat
– UV – in the final stage. Also there are no solvents at any stage so faster
and lower concern processing is realized.
Laminating Adhesives
Replace PSA films and tapes to laminate
and bond almost any substrate. Allows the assembly of vastly different materials
that will then pass thermal cycling. UV or visible cure to bond through blocked,
translucent or foam substrates. Films of these products can also be exposed to
light and then assembled similar to "contact cement". This is actually a "delay cure"
chemistry that will continue to cure and increase in strength over a day's time.
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