Materials
Our plastic solutions are made using a wide range of synthetic materials, with polymers as the main component. This allows us to create products with various shapes, while also focusing on their durability and flexibility. Tankplasta does not compromise with quality, that is why we choose to work only with the best materials on the market.
PE
(polyethylene)
Products made of polyethylene (PE 100 and PE 100-RC) are characterised by high toughness and excellent chemical resistance. PE used from -40 °C to +60 °C.
Other characteristics of products made of PE 100 and PE 100-RC include the following:
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good resistance to wear
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excellent electrical insulation
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high vibration damping
For decades now, products made of PE 100 and PE 100-RC black have proven reliability when used outdoors. The addition of particular carbon black types (approx. 2 %) ensures light and weather resistance. Products made of PE 100 and PE 100-RC black are unaffected by natural UV radiation.
Electrically conductive polyethylene (HDPE-el ESD) is a material that conducts electrical charges because conductive particles (carbon black) have been added to it. Products made of this particular material have integrated stabilisers that counteract natural UV light and are also suitable for outdoor applications. Due to their unique electrical properties, these products are particularly well suited to transporting highly flammable media or dust. HDPE-el ESD can also be used in areas where sparking from electrostatic charging needs to be prevented due to explosion protection requirements.
To comply with purity requirements, Tankplasta makes products made of natural HDPE as well.
PP (polypropylene)
Polypropylene (PP) is a semi-crystalline thermoplastic similar to HDPE but with higher stiffness, strength, and hardness levels.
An excellent chemical resistance also characterises it. PP features increased rigidity, especially in the upper service temperature range (up to +95°C). However, below the freezing point, PP is very sensitive to impact (use at temperatures below - 5 °C should be avoided). Products made of PP are also characterised by the following:
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a low density of 0.91 g/cm3
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relatively high surface hardness
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electrical insulation properties
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high creep strength
PP is the ideal material for use in pickling plants, the chemical industry, and also for highly aggressive wastewater, as chemicals are used at high temperatures in these areas. Tankplasta makes products from various PP polymer types:
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PP Grey
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PP Natural
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PP White
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PPS
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PPS-ESD EL
All propylene types are thermally stable, perfectly compatible, and easily welded by all standard welding procedures as per DVS 2207. Products made of grey polypropylene are not UV-stabilised and therefore need to be protected accordingly.
PP-H has proven to be an ideal construction material resistant to the hydrochloric and sulphuric acids occurring in absorption scrubbers. Products made of PP-H also offer high wear resistance to internal and external abrasion as well as a high level of operational reliability and cost benefits.
Special properties
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Permanent-heat resistant
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High chemical resistance
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Excellent for use in chemical tank construction
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Alpha-nucleated
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Good long-term properties concerning many substances
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High rigidity in the upper-temperature range
Low-flammability polypropylene (PPs) is a PP homopolymer, which is equipped with a flame retardant. Consequently, PPs can be classified as a material with higher flame resistance according to DIN 4102 and UL94. Low-flammability and electrically conductive (PPs-el ESD) polypropylene is made of PP copolymer and is equipped with both flame-resistant and electrically conductive / anti-static properties. The surface resistance is ≤ 106 Ohm, which means that electrostatic charging is prevented. Products made of polypropylene natural and white (made of PP-H) complete our extensive range of PP products.
PVDF
PVDF is a highly crystalline non-reinforced plastic that combines good mechanical, thermal, and electrical properties with excellent chemical resistance. Besides, it possesses good radiation resistance, which makes it ideal for high-end applications in semiconductors, pharmaceuticals, life science, and the photovoltaic industry.
PVDF can be processed without additives, which gives it excellent leaching behaviour. PVDF is manufactured under controlled purity conditions using carefully selected raw materials. Areas of application for these products include storage and transportation tanks and apparatuses requiring high media purity and leaching behaviour standards.
PVDF can be equipped with electrically conductive particles, especially for the electrical industry and explosion-proof areas. The conductive PVDF-el ESD (electrically conductive or electrostatic discharge) has a lower surface resistance, which prevents electrostatic charging.
PVDF Flex is an excellent alternative to well-known, conventional fluoropolymers. When it comes to processing, significant rationalisation effects can be achieved through increased flexibility, especially in bonded to steel linings and confined spaces or small radii.
ECTFE
ECTFE possesses a unique combination of properties resulting from its chemical structure, which consists of a copolymer with ethylene and chlorotrifluoroethylene arranged alternately.
ECTFE demonstrates excellent resistance to the corrosive influence of heat, intense radiation, and weathering. The material has high impact resistance and shows almost no property changes in a wide temperature range. This is particularly well-suited for demanding industrial applications such as chromic acid.
Furthermore, ECTFE is known for its sound permeation barrier for many chemicals. Its excellent welding properties and thermoplastic formability also make cost-saving and straightforward processing possible, both in the workshop and on-site. Compared to PVDF, ECTFE has better chemical resistance, especially when exposed to lyes.
FEP
FEP, which is a fully fluorinated plastic, offers outstanding corrosion resistance. It performs reliably over the enormous range of temperatures between -190 °C and +205 °C and can be used in numerous industrial applications. Flexibility, thermoformability and optimum welding properties mean Tankplasta made FEP products can be manufactured reliably at low costs.
PFA
PFA is the highest grade plastic in the portfolio. It is suitable for a vast spectrum of applications, thanks to its resistance to almost any medium and its temperature range of -190 °C to +260 °C. This means it can be offered as a solution even for harsh chemicals at high temperatures such as 150 °C sulfuric acid 70% concentration. The products made of PFA are also available in HP (High Purity) quality. The HP quality means it can be used for applications in semiconductors, pharmaceuticals, and food industries that require high purity levels.
The PFA lining can be used up to an operating temperature of 260 °C and shows excellent chemical resistance against condensation media like H2SO4, HCl and HF, typically present in power plant applications.