NDW
NDW is a semi flexible dual wall heat shrinkable sleeving. As the sleeving shrinks, the inner adhesive lining melts and flows to encapsulate the components contained within, providing a permanent moisture barrier.
The versatility of this product for protecting cable jackets, wire splices or electrical components is further enhanced by the 3:1 and 4:1 shrink ratios, so that only a few sizes are required for a comprehensive range of diameter applications. NDW is available in a range of colours both as 1.2 mtr lengths and as continuous reels for certain sizes.
Physical Properties
Shrink ratio | 3:1 and 4:1 |
Material | Cross-linked polyolefin |
Flexibility | Semi flexible |
Colours | Standard: Black Non-standard: Clear, Red, Blue, Yellow, White |
Tensile strength | 9N/mm” |
Ultimate elongation | 300% min |
Relative density | 1.25 max. |
Longitudinal change | 15% max. |
Thermal Properties
Operating temperature range | -55°C to + 80°C |
Shrinkage temperature | >125°C |
Electrical Properties
Dielectric strength | 12KV/mm |
Volume resistivity | 10″Òohm.cm. |
Storage stability | Very good |
Chemical Properties
Water absorption | 0.5% (24h at 25°C) |
Corrosion | Non-corrosive |
Flammability | Self-extinguishing* |
- Does not apply to clear variant
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. | |||
NDW32 | 3 | 1 | 1 | 1.2 or 60 |
NDW48 | 4.8 | 1.8 | 1 | 1.2 or 60 |
NDW64 | 6 | 2 | 1 | 1.2 or 60 |
NDW95 | 9 | 3 | 1.4 | 1.2 or 60 |
NDW127 | 12 | 4 | 1.75 | 1.2 or 60 |
NDW190 | 19 | 6 | 2.25 | 1.2 |
NDW254 | 24 | 8 | 2.5 | 1.2 |
NDW390 | 39 | 13 | 2.5 | 1.2 |
NDW4/1 | 4 | 1 | 1 | 1.2 |
NDW8/2 | 8 | 2 | 1 | 1.2 |
NDW12/3 | 12 | 3 | 1.4 | 1.2 |
NDW16/4 | 16 | 4 | 1.75 | 1.2 or 60 |
NDW24/6 | 24 | 6 | 2.25 | 1.2 |
NDW32/8 | 32 | 8 | 2.5 | 1.2 |
NDW52/13 | 52 | 13 | 2.5 | 1.2 |