Vuoraukset

Linings

Advantages of linings in industrial structures

Linings provide a cost-effective and long-lasting way to protect steel and concrete structures from chemical corrosion and wear.

By combining the chemical resistance of plastics and the strength of the load-bearing structure, a solution is achieved that withstands even the most demanding process conditions.

Key advantages of linings include:

  • Excellent chemical protection against strong acids, alkalis, and solvents
  • Long service life and maintenance-free operation, because corrosion does not weaken the base structure
  • High mechanical durability when the lining and base structure work together
  • Flexible implementation options – thermoformed, bonded, or mechanically fastened structures

Linings are used especially in tanks, basins, channels, process equipment, and reactors, where protecting steel or concrete is essential for safety and longevity.

PRP-Plastic’s experience guarantees a durable and safe solution

PRP-Plastic has extensive experience in the design, manufacture, and installation of plastic and fiber-reinforced plastic linings. We combine chemical and mechanical material expertise so that the lining solution serves the process reliably throughout its entire life cycle.

We design and implement:

  • Linings for steel and concrete tanks with different plastics or fiber-reinforced plastic structures
  • Internal linings for pipelines and equipment where extreme chemical resistance is required
  • Dual-laminate structures where the chemical protection of the inner surface is combined with the mechanical strength of the outer surface

We use only certified materials and tested methods, and ensure quality at every stage of the work – from material selection to surface treatment and fastening of the lining.

The result is a solution that withstands chemical exposure, temperature fluctuations, and mechanical stress – safely and long-lastingly.

Lining materials and properties

Polypropylene (PP)

PP is a common and cost-effective lining material that withstands alkalis and organic solvents well.

Suitable for processes where the temperature stays below 100 °C and the chemical load is moderate.

Operating temperature: 0 °C – +100 °C

Applications: tanks, channels, basin linings, ventilation components

Polyvinylidene fluoride (PVDF)

PVDF offers excellent resistance to chemicals and solvents.

Suitable for processes where cleanliness, tightness, and long-term temperature resistance are needed.

Operating temperature: –10 °C – +130 °C

Applications: linings for chemical tanks and reactors, pipelines

Ethylene chlorotrifluoroethylene (ECTFE)

ECTFE withstands strong acids and solvents well and offers better mechanical durability at low temperatures than PVDF.

Especially suitable for corrosion-resistant structures in the chemical industry.

Operating temperature: –40 °C – +140 °C

Applications: tanks, reactors, process channels

Perfluoroalkoxy (PFA)

PFA withstands almost all industrial chemicals and very high temperatures.

It is the best option for sites where process purity and chemical safety are critical.

Operating temperature: –200 °C – +260 °C (mechanically fastened)

Applications: linings for reactors, heat exchangers, and tanks

Fiber-reinforced plastic linings (FRP / Dual laminate)

Fiber-reinforced plastic linings combine chemical resistance and structural strength.

In them, the inner surface is made of chemically resistant plastic (e.g., PP, PVDF, ECTFE, or PFA), and the outer surface is reinforced with fiberglass.

Operating temperature: determined by the inner lining

Applications: tanks, basins, channels, equipment linings

RP is your choice when you want process equipment and piping to last year after year.