This compound utilizes the system for cross – linking of polyethylene known as Sioplas. It is a two component system comprising a silylated ethylene polymer known as the graft copolymer SPXL 333, and a master batch SPXL 900 containing a cross – linking catalyst. The two materials normally used in the ratio of 95 parts graft to 5 parts catalyst master batch.

Stored separately, these materials are fairly stable but when mixed and exposed to moisture, cross-linking takes place.

This system allows the compound to be extruded as a normal thermoplastic which will then attain a high level of cross-linking in the processed from. The finished product has all the properties associated with polyethylene cross-linked by other methods.