3LPE – Three layer polyethylene

EXTERNAL COATING AND INTERNAL LINING

Three layer polyethylene - render

V.I.P. Pesaro is one of the few companies able to offer the 3LPE coating on pipes as well as on custom pieces.
The coating is a multilayer composed of a primer fusion bonded epoxy (FBE) followed by an adhesive copolymer and another layer of polyethylene which provides resistance and long-lasting protection.
The system ensures the applicability of the sintered coating also on pieces with special shapes.

Long-lasting corrosion protection
The FBE primer offers an excellent adhesion to the substrate and provides a long-term corrosion protection for pipelines operating at moderate temperatures.
It also ensures the resistance to the cathodic disbondment so the total cost of cathodic protection of the pipeline decreases.

Remarkable mechanical protection
The applied polyethylene layer protects the pipeline during shipping and installation reducing repair costs and providing an underground protection against mechanical, chemical and abrasive attacks.
Applying an higher polyethylene thickness the mechanical protection increases proportionally.

Advantages of the sintered system
V.I.P. Pesaro using this special application technique is able to coat also specific pieces with special shapes (bends, tees, reducers, joints, etc.).
There aren’t any limitations about the amount of pieces to coat, even the single piece can be treated.
3LPE can be applied in different thicknesses to meet the requirements of project specifications.

3LPE - Triple Layer Polyethylene

3LPE PROCESS

EXTERNAL COATING

INTERNAL LINING

INSPECTION AND TESTING

Property Test Description Typical Values
Degree of cure of epoxy resin DIN 30670 ∆Tg according to the manufacturer specifications
Impact DIN 30670 ≥ 7 J/mm
Cathodic Disbondment DIN 30670 23°C/ 28 days or 60°C/ 2 days max 7 mm
Peel Strenght DIN 30670 35 N/cm at 23°C; 15 N/cm at 70°C
Continuity (holiday detection) DIN 30670 10 kV/mm; max 25kV

COATING CAPACITY

Pipes:
Diameter from 1/2” to 120”
Maximum unit length 13.5 meters
Maximum unit weight 15,000 kg.
Joints and/or custom pieces: (bends, tees, reducers, flanges, etc.)
Maximum size 3.0 x 3.0 x 13.5 meters
Maximum unit weight 15,000 kg
Maximum thickness of the coating 3,5 mm

DOCUMENTATION

3LPE – Samples

PROCESS - 3LPE 3-LAYER-POLYETHILENE

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