Polyethylene pipe

A method for stabilizing a polyethylene pipe, the method comprising incorporating 0.01 to 2 wt. % of polyethylene component A) relative to a weight of said polyethylene, 0.01 to 5 wt. % of B) relative to a weight of said polyethylene, C) and D) in a weight ratio of component A) to component B) of 1:10 to 10:1,

• a weight ratio of component A) to component D) is 1:10 to 10:1 and
• into a polyethylene and forming a pipe,
• wherein
• component A) is a hindered amine light stabilizer
• wherein E1 is
• E2 is
• with a1 being 2 to 10, and
• component B) is a natural or synthetic hydrotalcite,
• component C) is at least one phenolic oxidant which is 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene,
• component D) is tris[2,4-di-tert-butylphenyl]phosphite, and
• a weight ratio of component A) to component C) of 1:5 to 5:1.