Plastics Tests

Our laboratory offers comprehensive testing of plastic materials, which helps to verify their mechanical properties, dimensional accuracy and resistance to external influences. Thanks to a wide range of methods and modern equipment, we provide accurate data for development, quality control and long-term evaluation of the service life of plastic products.

Over 30 years of experiencein the supply & service of testing technology
Warranty & post-warranty servicefor our own and competitors' equipment
Training of your employeesto increase their expertise
Accredited laboratoriesfor external tests and calibrations

Hardness tests of plastics

We measure the hardness of plastics using the Rockwell R, Shore (A and D) and IRHD methods. The Micro Shore A and IRHD Micro methods are also suitable for measuring small parts, such as O-rings, and allow accurate evaluation of elastomers and softer plastics. The results of hardness tests provide important information about the mechanical resistance of the material.

Strength and ductility tests of plastics

We carry out tensile tests of plastics, which determine their strength characteristics – tensile strength, yield strength, elongation and modulus of elasticity. These parameters are essential for assessing the mechanical behaviour of the plastic under load and its ability to deform without failure.

Solar tests of plastics

We test the resistance of plastic materials to sunlight, i.e. full-spectrum radiation. This radiation contains all three components: ultraviolet (UV), visible and infrared (IR). We simulate long-term exposure to sunlight under controlled conditions in order to evaluate changes in colour, mechanical properties or surface degradation.

Precise dimensional measurement

Our specialised workplace is equipped with modern microscopes that enable measurement with high resolution and accuracy. These measurements serve to verify compliance with the drawing documentation, to check shape deviations and to ensure the quality of production.

We'll be happy to advise you.

Ing. Radek Lovětínský

Head of the testing laboratory

+420 602 287 214Mon–Fri: 9:00–16:00 zkusebna@jddvorak.czI'll reply within 24 hours

Everything we test for you

In our laboratory we carry out comprehensive testing of plastic materials, which helps to verify their mechanical properties, resistance to external influences and long-term reliability. We focus on tests of hardness, strength, ductility and resistance to sunlight. Thanks to modern methods and instruments, we provide accurate data for the development of new products, quality control and evaluation of the service life of plastic parts.

Micro Shore A

The method enables accurate measurement of the hardness of soft plastics and elastomers even on very small parts whose thickness is less than that required by the standards for the Shore A and D methods (ČSN ISO 48-4, ASTM D 2240, ČSN EN ISO 868), or on parts with non-standard dimensions and shapes.

Strength of plastics

It describes how a material responds to mechanical load - tension, compression or bending. Key parameters such as tensile strength, modulus of elasticity and elongation at break are determined according to the ČSN EN ISO 527-1 standard.

IRHD Micro

It is ideal for accurate evaluation of elastomers and small plastic parts, such as O-rings, without damaging them, according to the ČSN ISO 48-2 standard.

Resistance to sunlight

The material is exposed to the influence of climatic changes and at the same time to the effect of full-spectrum sunlight, which can affect its properties and service life.

The standards we test to for you

To ensure the quality and reliability of plastic and polymer products, we carry out tests according to a number of international and Czech standards. We focus on hardness measurement (Shore, IRHD and ball indentation methods), tensile and flexural properties, as well as compression resistance of soft foam materials. We also test the resistance of plastic materials to sunlight. These tests provide a comprehensive overview of the behaviour of materials and serve as a basis for development, quality control and certification of products.

1
Non-binding inquiry

Tell us your testing requirements (e.g. via the inquiry form, email or phone).
2
Consultation & requirements specification

We contact you and clarify the test specification and timeline.
3
Price quotation

You receive a structured price quotation from us.
4
Ordering

After your order we reserve the date and capacity.
5
Delivery of samples

You deliver the samples to us in person or by courier.
6
Performing the test

We carry out the test on the reserved date.
7
Preparing the test report

After the test we send the test report electronically.
8
Follow-up support

We'll gladly go through the test results with you.

„The testing chamber, and the staff's approach and willingness beyond requirements — I can only recommend them.“

Tomáš Matús Google review

„JD Dvořák — a company where the impossible does not exist and where it is not only about work. I am glad to have the honour of working with JD Dvořák.“

Libor Pala TRL Space Systems s.r.o.

„We have worked with JD Dvořák for a long time in testing, the rental of climatic chambers, and the service and calibration of our equipment. We value the helpfulness and professionalism of the department heads and technicians we are in regular contact with during tests and the work carried out. Our technicians also make use of training in various areas of testing, which provides both an expansion of theoretical knowledge and practical demonstrations.“

Jiri Turek Google review

„What I greatly appreciate is the personal approach to solving every problem. Whether it concerned specific testing requirements or the need for individual consultation, I was always met with willingness and expert help that led to a smooth and efficient collaboration. For me, JD Dvořák is not only a professional company, but also an excellent partner in research and education.“

Ing. Veronika Steinerová Kloknerův ústav, ČVUT LinkedIn

„We have worked with JD Dvořák since 2020. Since then we have completed several installations together, and throughout they have provided service and the necessary calibrations, always at the highest professional level. They have also helped us with our special requirements and we can always rely on them. Their approach is not only professional and customer-oriented, but also very human, and the cooperation is always pleasant.“

Jan Špaček Fresenius Kabi Horatev CZ s.r.o.

„Cooperation with JD Dvořák is at an excellent level, as proven by more than 20 years of trouble-free collaboration.“

Libor Šmíd TÜV SÜD Czech s.r.o.

„You do good work — thank you for the long-term cooperation.“

Ing. Ivan Vavrík Bel Power Solutions s.r.o.

„Thank you for the professional cooperation so far. You are a very reliable partner for us.“

Ing. Miloslav Mensinger Škoda Auto a.s.

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Test report

This document contains key information about the tested sample and the course of the test. We provide the report in Czech or English according to your needs.

We issue both an accredited and a non-accredited test report according to customer requirements. The type of report is determined by the chosen testing standard.

Expertise in the field

Not sure how to test your sample? We'll help. We have years of experience and will recommend the most suitable procedure. And if you already know exactly what you want, we'll be your partner — without unnecessary questions.

Flexibility

Our equipment covers most requirements. If something is missing, thanks to our links with manufacturers of testing technology we can often arrange even specialised equipment outside our laboratory.

Reliability & speed

You can rely on both the equipment and our arrangements. We service and calibrate everything ourselves, so we can react quickly and adapt tests to get you results as soon as possible.