NVTN

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NVTN is a cross-linked flouroelastomer. The VITON¨ heat shrinkable sleeving will operate at very high continuous temperatures of up to 200°C . It is resistant to chemical attack, is self extinguishing, and will withstand impact and mechanical abuse.

Available in Black in a range of sizes up to 51mm diameter, NVTN complies with DEF.STAN 59-97 type 4A approval. VITON¨ is a trademark of Du Pont.

Physical Properties

Shrink ratio 2:1
Material Cross-linked flouroelastomer
Flexibility Semi flexible
Colours Black
Tensile strength 8.4N/mm”
Ultimate elongation 250% min
Relative density 1.9 max.
Longitudinal change 20% max.

Thermal Properties

Operating temperature
range
-40°C to +200
Shrinkage
temperature
>175°C
Storage stability Very good

Electrical Properties

Dielectric strength 7.5KV/mm

Chemical Properties

Corrosion Non-corrosive
Flammability Highly flame retarded
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.
NVTN32 3.2 1.6 0.76 30 or 50
NVTN48 4.8 2.4 0.84 30 or 50
NVTN64 6.4 3.2 0.89 30 or 50
NVTN95 9.5 4.8 1.02 30 or 50
NVTN127 12.7 6.4 1.22 30
NVTN190 19.0 9.5 1.45 30
NVTN254 25.4 12.7 1.78 30
NVTN380 38.0 19.0 2.41 15
NVTN510 51.0 25.4 2.79 15