Alternative to traditional materials

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Quick overview

GDP KORAL s.r.o.

It´s a partnership of French company GDP SA, which are engaged in pultruded profiles and load-carrying constructions, and Czech company KORAL s. r. o., supplier of full range of materials and things for lamination. We are section of company GDP Group, which proposes, produces and supplies solutions on the basis of plastics composites by production plants in France, Spain and Czech Republic.


Technology of manufacturing

Plastics composites are produced by many various technologies. Company GDP KORAL is specialized in highvolume continual technologies, mainly pultrusion and pressing.


What are composite materials?

Composites are defined as materials, which are consisted of two or more components variant physical and chemical properties.


ISO 9001, ISO 14001

Thermal insulation

The reinforced plastics composites are a highly efficient thermal insulators. This advantage and good strength properties are used in the course of producing of windows, fire-stopping doors, but also in thermal insulated truck and freezer industry.

Advantages of reinforced plastics composites as thermal insulators are:

Thermal properties:

Our profiles can be used without restriction between -20°C and +80°C, in the case of special resins -20°C and +150°C.
Coefficient of linear expansion: 8 – 10.10-6 K-1
Thermal conductivity: 0,2 – 0,4 W/mk

Special fire resistance applications

For applications where fire resistance and low smoke emissions are crucial, one can use special phenolic or modified acrylated resins.

Available profiles: