Three layer polyethylene coating 3LPE

Anticorrosive coating consists of the following layers:

     •    Epoxy primer with minimal thickness of 80 μm
     •    Copolymeric adhesive layer with minimal thickness of 160 μm
     •    Polyethylene layer with thickness range between 1,8 mm and 4,7 mm with possibility to obtain even 12 mm

Coating process is divided into the following stages:

     •    Abresive blast cleaningof the steel pipe surface to Sa 2 ½ according to PN-EN ISO 8501-1
     •    Induction heating of pipes
     •    electrostatic spraying of epoxy powder on preheated pipes wytłaczanie lub
     •    Extrusion or electrostatic spraying of copolymer adhesive on preheated pipes
     •    extrusion of polyethylene layer
     •    coating cooling with water
     •    mechanical machining of pipe ends
     •    application of anticorrosive varnish on pipe ends

Typical features of the three layer anticorrosive coatings applied on steel pipes include the following:

     •    high resistance to mechanical damage,
     •    resistance to chemical substances, moisture, breakdown, high temperature and UV radiation,
     •    good adhesion of the coating to steel pipe surface,
     •    anticorrosive protection of underground pipelines for approximately 50 years,
     •    complete protection of steel pipe welds,
     •    easy connection of coated pipes without damaging the coating,
     •    the coating is neutral to the natural environment.

Izostal S.A. supplies coated steel pipes of diameter between 21,3 and 1220 mm and length between 8 and 18 linear metres; moreover we provide coating services with reference to pipes delivered by our customers.