Coating pipe

System

Structure

Service temp. (typ.)

Key features

Application

Single-layer FBE

Fusion bonded epoxy

−30 to 100 °C

Excellent adhesion, chemical and cathodic disbondment resistance

Oil & gas trunk lines, crossings, stations

Dual-layer FBE

Anti-corrosion base + mechanical protection top

−30 to 100 °C

Better mechanical resistance than single layer

High temperature, rocky terrain, HDD crossings

2PE

Adhesive + PE

≤ 60 °C

Lower cost

General buried service

3PE

FBE + adhesive + PE

−40 to 70 °C

Three complementary layers; resists mechanical damage and soil stress

Buried long-distance oil, gas and water lines (largest volume)

3PP

FBE + adhesive + PP

up to 110–140 °C

Higher temperature resistance than PE

Hot oil, district heating

TPEP

Internal epoxy + external 3PE

external ≤ 70 °C

Both surfaces protected; internal lining meets drinking-water standards

Large-diameter water mains

IPN8710

8710-1 primer + 8710-2/3 topcoat

ambient to 80 °C

Non-toxic, ambient cure, flexible application

Potable water and sewage pipe interiors