External coating

The purpose of an external coating is to provide a durable protection against corrosive soils. PAM offers a complete range of external coatings to meet all cases of corrosive soils and respecting EN 545 Standard.

biozinalium
The coating for the Natural range of iron pipes consists of ZnAl 85/15 (Cu), and 85/15 Zinc-Aluminum alloy enriched with Copper, with a minimum mass of 400 g/m2 and a protective Aquacoat layer (80 µm thick on average).
Zinc coating
The standard PAM pipe coating consists of a layer of sprayed metallic zinc covered with a protective Aquacoat layer (semi-permeable) of an aqueous phase acrylic-PVDC type, 80 µm thick, applied by spray gun
Polyethylene sleeving
Polyethylene sleeving is a tubular film of low density polyethylene slipped over and snugly fitted to a pipe at the time of laying.
TT PE Pipes
The TT PE range from DN80 to 1000 features a polyethylene coating extruded onto the pipes in the factory.

The TT PE range is intended for use with highly aggressive soils. A polyethylene coating deposited in PAM plants The polyethylene coating is extruded onto the pipes in the PAM plants. Internal manufacture ensures rigorous control of the coating application conditions.

Each pipe is tested individually after coating by a "Holiday detector" test in order to check the protective quality of the coating (barrier forming a seal against the external environment).
TT PUX - External Polyurethane
The TT PE range from DN80 to 1000 features a polyethylene coating extruded onto the pipes in the factory.

The TT PE range is intended for use with highly aggressive soils. A polyethylene coating deposited in PAM plants The polyethylene coating is extruded onto the pipes in the PAM plants. Internal manufacture ensures rigorous control of the coating application conditions.

Each pipe is tested individually after coating by a "Holiday detector" test in order to check the protective quality of the coating (barrier forming a seal against the external environment).