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Fiber-reinforced plastics

Advantages of fiber-reinforced plastics in industrial structures and piping

Fiber-reinforced plastics, such as glass fiber reinforced plastics (GRP/FRP), combine the chemical resistance of plastics and structural strength in a way that makes them an excellent alternative to metals in demanding conditions.

They are widely used in tanks, ducts, piping, and ventilation systems where a lightweight but mechanically durable material is required.

Advantages of fiber-reinforced plastics include, among others:

  • High chemical resistance against acids, alkalis, and salts
  • Low weight, which facilitates handling and installation
  • Long service life and corrosion resistance without surface treatment
  • Customizability: different structures can be used to optimize stiffness, impact resistance, or temperature resistance

In fiber-reinforced plastics, durability, lightness, and chemical protection combine in a unique way. They are an excellent solution for applications where traditional materials, such as steel or aluminum, suffer from corrosion or weight limitations.

PRP-Plastic’s experience ensures a durable and safe end result

PRP-Plastic has extensive experience in the design, manufacturing, and delivery of fiber-reinforced plastic structures for demanding industrial environments. We combine high material expertise and practical experience so that every solution meets both mechanical and chemical requirements.

We design and deliver:

  • Piping and ducts that combine the chemical resistance of the inner lining with the mechanical strength of the structure
  • Tanks, basins, and components manufactured individually according to the application
  • Composite structures where, for example, a PP or PVDF inner surface is protected with external glass fiber reinforcement (dual laminate)

We deliver only tested and certified materials, and our experts support the project from start to finish – from material selection to design and commissioning.

The result is a solution that withstands mechanical load, chemical stress, and time.

Main materials and properties of fiber-reinforced plastics

Glass fiber reinforced plastic (GRP / FRP)

A fiber-reinforced plastic structure in which a polyester, vinyl ester, or epoxy matrix is reinforced with glass fiber.

The combination provides very high tensile strength and stiffness relative to weight.

Applications include, for example, piping, tanks, and ventilation ducts.

Operating temperature: up to +120 °C (depending on the matrix)

Applications: process industry, water treatment, chemical tanks, ventilation ducts

Dual laminate (e.g. PP+FRP, PVDF+FRP, ECTFE+FRP)

A composite structure in which the inner surface is made of a chemical-resistant plastic and the outer surface of a glass fiber reinforcement.

The solution combines the chemical resistance of the inner lining and the mechanical strength of the outer layer.

The dual-laminate structure prevents leaks, extends service life, and increases the stiffness of the structure.

Operating temperature: depends on the inner lining material (e.g. PP +100 °C, PVDF +130 °C, ECTFE +140 °C, PFA +260 °C)

Applications: chemical piping, tanks, ducts, process equipment

Carbon fiber reinforced plastic (CFRP)

The use of carbon fiber as reinforcement enables very high mechanical strength and stiffness.

CFRP structures withstand dynamic loads and temperature fluctuations well.

Due to their high cost, they are used only in special applications.

Operating temperature: up to +180 °C

Applications: special structures, process components for high pressure or temperature

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