Compound properties

Compound C2-M is a silane-grafted, moisture crosslinkable compound offering excellent chemical resistance and flame-retardancy properties. The carefully selected combination of polyolefin based polymers, a selection of superior flame-retardants , processing aids and additives makes this compound an excellent choice for the manufacturing of heat-shrinkable tubings which will easily meet the requirements of MIL-DTL-23053/5 class 3, UL 224-VW 1, CSA C22.2 No 198.1 OFT and VG 95343 Part 5 Type A.
The compound is easy processable at high speeds with minimal melt fracture and can be extruded on standard PE or PVC screws having a 2:1 pressure ratio.

Compound characteristics

Extrusion

Crosslinking

Packaging

To avoid premature crosslinking and to achieve a 6 months shelf-life after date of production, all moisture crosslinkable PTL compounds are packed in aluminium coated bags of 25 kg.
The compound should be stored below 30ºC.

Tubing properties

Heat-shrinkable tubing made of this compound will show a continuous operating temperature of 135ºC. The excellent heat-ageing properties allows the product to withstand 250ºC for short periods. The compound shows excellent flame-retardancy properties and is non-dripping. This makes the tubing, manufactured of this compound an excellent choice for applications were non-flame-propagating properties are required.
Tubing manufactured of this non-blooming compound shows superior printability properties for marker-sleeves and will shrink at temperatures of 90ºC.

Technical values

International specifications

- MIL-DTL-23053/5 class 1
- UL 224 VW-1
- CSA C22.2 No 198.1-98 OFT
- VG 95343 Part 5 Type A

(*) In non-crosslinked state
(**) The crosslinking time is depending on wall-thickness.