PRODUCT NEWS
NEW ONE TOUCH 20 BAR FITTINGS FROM CDC
Fluid power specialists Tom Parker
Ltd have introduced a new line to
their extensive range of CDC one
touch fittings: a one touch 20 bar
version for high pressure applications.
Designed for use with polyurethane
and nylon tube, the one touch 20
bar range features a push to connect
configuration to permit instant tubing
connection. A smaller body size and
wider temperature range of -20ºC to
80ºC make it a versatile choice.
The main body of the PL and PT
versions rotate to provide better
accessibility and comprise O-ring or
Teflon coated sections. The new lines
include: swivel male elbow, swivel
branch tee, straight union, union
elbow, and union tee. Available in
white with sizes ranging from 4 mm to
12 mm. CDC Pneumatics is a leading
global manufacturer recognised for
quality, service and value. CDC one
touch 20 bar fittings are available from
Tom Parker Ltd.
Visit tom-parker.co.uk
NEW UV-CURABLE EPOXIES FOR DAM & FILL APPLICATIONS
IN THE INDUSTRIAL SECTORS
John P Kummer, a leading supplier
of high-performance speciality
adhesives, is today launching new
UV-curable epoxies for dam and
fill processes in the UK industrial
sectors.
The “dam & fill” process with two
materials is mainly used in cases
where a component needs to be
protected with either an optically-
transparent or opaque encapsulant
or if a conventional glob-top
material is too viscous to flow
around and underneath fine wires.
Optically transparent encapsulants
usually have a low viscosity. A dam
is therefore applied around the
component first to prevent the
potting material from flowing over
the substrate.
Epo-Tek OG116-31 is a UV-curable
epoxy. Due to its thixotropic1
nature it is often used as a dam.
It can be cured with UV-light in
a very short time. Afterwards
the encapsulant – either also a
UV-cure or a thermoset material
- can be applied. Whilst OG142-
142
PECM Issue 39
87 is typically use for a UV fill,
both products have a high glass
transition temperature (Tg >100°C).
As most UV-cure epoxies,
both OG116-31 and OG142-
87 are cationic products. Ionic
polymerization is initiated by
photo-generated ions. The cure
process continues until all polymers
are consumed. Generally, cationic
products have the benefits of less
shrinkage and higher adhesion
over free radical cured systems and
are not adversely impacted by an
oxygen rich curing environment.
Rob Church of JP Kummer said:
“The dam and fill process is often
a tricky operation. However, these
two new UV-curable epoxies make
it more straight-forward, with
more consistent applications. We
are really pleased to make these
available.”
www.jpkummer.com