Black adhesive lined heat shrink tubes 2:1 with suppression of burning

type : ТТК(2:1) black

  • Designed for sealing, insulation, and corrosion protection of contact connections in power generation and telecommunications
  • Shrink ratio: 2:1
  • Material: polyolefin
  • Color: black
  • All inner surfaces of heat shrinkable tubes has a hot-melt adhesive layer, applied by coextrusion
  • Tubes are resistant to UV radiation
  • Excellent adhesion of hot melt layer to all materials
  • High performance of electric strength of the material ensures reliable insulation
  • While shrinkage, adhesive layer melts, and fills all the irregularities and provides full leak proofness of connections
  • Packing: cutting by 1-meter length

Elongation at breakpoint

not less than 350%

Shrinking temperature

115-140 °С

Operating temperature

-55 °C to +125 °C

Tensile strength

not less than 10 MPa

Electric durability

at least 20 kV/mm

Operating voltage

Up to 1000 V

Specific volume of electrical resistance

1014 Ом/cm

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Name  

Nominal diameter before shrinkage

D (mm)

Nominal diameter after shrinkage

d (mm)

Wall thickness after shrinkage* (mm)

S
Optimal range Cutting (m)
ТТК (2:1)-4.8/1.6   4.8 2.4 1.1 4.32- 2.88 1.00
ТТК (2:1)-6/3    6 3 1.2 5.4- 3.6 1.00
ТТК (2:1)-9/4.5   9 4.5 1.4 8.1 - 5.4 1.00
ТТК (2:1)-12/6    12 6 1.7 10.8 - 7.2 1.00
ТТК (2:1)-19/9.5   19 9.5 2.1 17.1- 11.4 1.00
ТТК (2:1)-25/12.5    25 12.5 2.4 22.5- 15.0 1.00
ТТК (2:1)-38/19   38 19 2.6 34.2- 22.8 1.00
ТТК (2:1)-50/25   50 25 2.7 45.0 - 30.0 1.00

 *Wall thickness after shrinking includes the thickness of the adhesive layer

Adhesive lined tubes TTK 2:1 with shrink ratio 2:1 are designed for insulation of electrical connections. The characteristic feature of the tubes is a smooth leveled thickness of the walls and adhesive glue, lined along the whole inner surface if the tube using the method of co-extrusion. The glue ensure safe connection and liquid tight connection for voltage up to 1000 V and also ensure mechanical strength after shrinkage.

Melting during heating, the glue fills all the spaces inside the tube. Adhesive qualities of the glue start to work only after shrinkage.

The tubes are highly resistant to UV-weather, humidity; they can be installed in earth or concrete. Comfortable in installation due to low shrinking temperature (115°С), high elasticity and thin walls. Supplied in a pack of 10 pcs cut by 1 meter each. Most popular sizes: from 4,8/2,4 up to 50/25.

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