Compound D1-I

Radiation crosslinkable elastomeric compound for flexible high grade,
hydraulic fluid resistant 120ºC heat-shrinkable tubing.

Compound properties

Compound D1-I is a radiation crosslinkable compound offering excellent chemical resistance, flexibility , abrasion resistance and flame-retardancy properties. The selected combination of elastomers, flame-retardants, processing aids and additives makes this compound the ideal choice for the manufacturing of heat-shrinkable tubings which will easily meet the requirements of MIL-DTL-23053/1 class 2.
The compound is easy processable at high speeds and can be extruded on standard PE or PVC extruders.

Compound characteristics

Color   Black
Specific gravity ASTM D 792 1.2
Water absorption ASTM D 570 0.25%
MFI (160ºC, 21.6kg) ASTM D 1238 8
LOI ASTM D 2868 28%

Extrusion

Recommended extrusion temperature profile 145ºC - 150ºC - 155ºC - 160ºC - 165ºC

Crosslinking

Recommended dose 100 kGy
Hot-set elongation 140 - 170 % (180ºC and 35 gr/mm2 load)

Packaging

The compound is packed in sealed PE bags of 25 kg.
We recommend to store the compound below 30ºC.

Tubing properties

Heat-shrinkable tubing made of this compound will show a continuous operating temperature of 120ºC. The excellent heat-ageing properties allows the product to withstand 175ºC for short periods. The combined high chemical resistance against a wide range of fluids and the extreme flexibility makes this compound an excellent choice for applications in the automotive, aerospace, military and chemical industry, on cables or harness systems in equipment that is subject to high levels of physical abuse.

Technical values

Property Test Method Typical value
 
Physical
Tensile strenght at break ASTM D 638 17 MPa
Elongation at break ASTM D 638 500%
 
Thermal
Continuous operating temperature   -55ºC to +120ºC
Minimum Shrink temperature   120ºC
Heat shock (4hrs @ 250ºC) ASTM D 2671 No cracking, dripping, flowing
Heat ageing (168hrs @ 150ºC) ASTM D 638 Elongation 300%
Low temp. flexibility (-55ºC) ASTNM-D 2671C No cracking
Flammability ASTNM-D 2671 Self-extinguising
 
Chemical
Fungus resistance MIL-DTL-7444 Inert
Fluid resistance MIL-DTL-23053/1 Excellent
Copper Corrosion ASTM D 2671 B Excellent
 
Electrical
Dielectric strength ASTM D 2671 12 kV/mm
Volume resistivity ASTM D 257 10 @ 13 ohm.cm

International specifications

- MIL-DTL-23053/1 class 2
 
 
 

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