WCA July 2010

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machinery & materials
Wire & Cable ASIA – July/August 2010 48
Composite glass
Roblon’s composite glass is a hotmelt-coated glass
strength member, suitable for reinforcement of buried
cables and short span aerial cables.
Roblon offers a range of specialised hotmelt
formulations. One example is an extra adhesive version
that transmits the force of the strength members to the
jacketing material, making it ideal for short span aerial
cables. Roblon has also developed an anti-rodent
version of the composite glass that is particularly
suitable for direct buried cables or cables placed in
extreme environments such as sewer systems.
The hotmelt-coating can be reactivated during the
extrusion process, which can make the individual yarns
bond together, thus forming a ‘tube’ that completely
surrounds and protects the cable centre. When applied
this way the composite glass also protects the cable
centre against water penetration.
Roblon composite glass is a fully impregnated and
extremely tough yarn, making it applicable in any
production process. It can be stranded around the
cable centre or applied longitudinally.
Roblon A/S – Denmark
Fax: +45 9620 3399
Email:
Website:
Roblon’s composite glass ❍ ❍
Wire and
cable
compounds
Commercial Polymers, Malaysia, has
been supplying the Copo-link moisture
cross-linkable silane grafted poly-
ethylene with a 5% catalyst master-
batch and Copo-lene PE black jacketing
compound since the year 1997.
Copo-link CXL7799NT/CXL8899MB
(XLDPE) and Copo-link CXL2323NT/
CXL8899MB (XLLDPE) are designed
for use as an insulation layer on
copper or aluminium conductors in low
voltage power cable applications.
Copo-lene LL0018BK (LLDPE),
LD0019BK (LDPE), MD0020BK (MDPE)
and HD0022BK (HDPE) are black
polyethylene jacketing compounds
designed for power and telecommuni-
cation cables that demand high
resistance to weathering.
Commercial Polymers Sdn Bhd –
Malaysia
Fax: +603 907 6302
Email:
New TPEs
A new series of Elexar® thermoplastic elastomer (TPE) compounds for wire and
cable, from the Thermoplastic Elastomer Division of Teknor Apex Company,
provides a combination of RoHS compliance, UL-V0 flame retardance, and
excellent performance over a wide range of end use conditions.
The Elexar high-performance FR series includes six grades, with Shore A
hardness ranging from 58 to 85, upper use temperature from 105ºC to 125ºC,
low-temperature flexibility down to -50°C, excellent UV resistance, and good
oil resistance.
For applications where appearance is critical, the compounds provide excellent
colourability and non-blooming surfaces, according to Keith Saunders, market
manager.
“Elexar HPFR compounds embody a hard-to-find combination of outstanding
end-use performance and compliance with the stringent standards required
in the global marketplace,” said Dr Saunders. “Conventional flame retar-
dant TPEs not only fail to comply with the RoHS directives but are more
limited in terms of flame test ratings and service temperatures. In addition,
their flame retardant formulations often present the problem of blooming or
surface staining.”
Teknor Apex suggests evaluating Elexar High-Performance FR compounds for
use in insulation and jacketing for automation and control cables, fibre optic
cables, low-voltage power cables, appliance wire, and flexible cord.
The new Elexar compounds meet standards specified under UL 1061 and unlike
conventional TPEs, pass the UL VW-1 vertical flame test for cable jacketing.
Teknor Apex Company – USA
Fax: +1 401 728 5680
Email:
Website: