NTTR

nttr

NTTR is made from PTFE. The PTFE heat shrinkable sleeving will operate at very high continuous temperatures of up to 260%C. It is resistant to chemical attack in the most hostile of environments, is non burning and features a wide ranging 4:1 shrink ratio.

Available as a translucent sleeving in a range of sizes up to nearly 32mm diameter, NTTR exhibits an extremely low coefficient of friction making it ideal for applications such as bearing shafts as well as high temperature applications such as hydraulic hose fittings and coupling covers.

Physical Properties

Shrink ratio 4:1
Material Polytetraflouroethylene
Flexibility Semi flexible
Colours Translucent
Tensile strength 17.5N/mm”
Ultimate elongation 200% min
Relative density 2.2 max.
Longitudinal change 20% max.

Thermal Properties

Operating temperature range -65°C to + 260°C
Shrinkage temperature >350°C
Storage stability Excellent

Electrical Properties

Dielectric strength 40KV/mm
Volume resistivity 10Õ8ohm.cm.

Chemical Properties

Water absorption 0.1% (24h at 25°C)
Corrosion Non-corrosive
Flammability Non-burning
PRODUCT
CODE
REF.
Internal
Diameter (mm)
Nominal
wall
thickness
(mm)
after heating
(full recovery)
Standard
reel size
(mtrs)
Expanded
As supplied
min.
Recovered
after heating
max.
NTTR20 1.9 0.7 0.23 1.2 or 30
NTTR32 3.1 1.0 0.25 1.2 or 30
NTTR48 4.7 1.3 0.28 1.2 or 30
NTTR64 6.3 1.6 0.30 1.2 or 30
NTTR95 9.5 2.5 0.30 1.2
NTTR127 12.7 3.7 0.38 1.2
NTTR158 15.8 4.6 0.38 1.2
NTTR190 19.0 5.7 0.38 1.2
NTTR254 25.4 7.1 0.38 1.2
NTTR320 31.7 8.9 0.38 1.2