Get in touch with us
Do you have general questions about the organisation, our locations or would you like to make a specific enquiry to Masterflex? Or are you looking for a specific contact person for a particular department? We have a few suggestions for you to choose from.
- General contact
- International
- Jobs & Career
General contact
Do you have a question for us?
If you would like to call us, our sales team will be happy to put you through to the right contact person.
Telephone:+49 209 97077-0
If you would like to be called back, please make an appointment with us:
Alternatively, you can use our contact forms - depending on your enquiry.
Select language
Please select your language.
DeutschEnglishFrançaisEspañolČeštinaSvenskaEnglish (GB)Português (Brasil)Język polski
Material polyurethane (PU, PUR)
PUR is the ideal material for industrial hoses used to transport highly abrasive or problematic media. Masterflex processes PUR into innovative hoses and connections.
General information on PUR
Polyurethane (colloquially PU, DIN abbreviation PUR) is a plastic or synthetic resin.
It is a polymer composed of a chain of organic units with carbamate (urethane) bonds. The term polyurethane is a collective term that stands for a large number of modern plastics. Their common feature is the urethane group and their incredible flexibility: the technical properties of polyurethanes can be optimally adapted to the intended use by varying the starting materials like no other plastic.
Incidentally, Otto Bayer and his team at Bayer AG in Leverkusen developed PUR in 1937. The industrial production of polyurethane materials then began in 1940.
The use of PUR
The plastic polyurethane can be used in many different ways.
Polyurethane can be foamed - and is therefore very important in the foam industry as rigid or flexible foam. In the construction industry, rigid PU foam is used for insulation, for example, but also as a self-solidifying foam for the permanent filling of cavities, such as cable and pipe penetrations. Foamed polyurethanes are also used as filling, insulating or damping material in mechanical engineering and the automotive industry. Flexible PU foamis used instead of rubber, caoutchouc and felts for upholstery and mattresses, for example. Textile PU fibres are usually combined with other fibres to make fine textiles. Polyurethane is also the basis for weather-resistant paints, waterproof coatings, casting compounds and adhesives, which are used in the automotive industry, furniture construction and the textile and clothing industry, for example.
The majority of our abrasion-resistant suction and delivery hoses are made of polyurethane.
Properties of PUR
Polyurethane is the ideal material for industrial hoses used to transport highly abrasive or problematic media. The outstanding properties of PU hoses include
- High wear and tear resistance,
- elasticity,
- temperature resistance,
- good ozone and weather resistance and
- good chemical resistance.
Compared to conventional PVC hoses, they are characterised by increased strength and better temperature resistance.
Our hoses made from the material PUR
The majority of our abrasion-resistant suction and conveyor hoses are made of polyurethane (PUR):
- Flamex (in the versions B-F se, B-F se for machining centres, B se)
- Master-PUR Trivolution (in the versions LF, L, H, HÜ, HÜ S, HX, HX S)
- Master-PUR H Trainflex
- Master-PUR Performance
- Cargoflex
- Master-PUR Inline
- Polderflex PUR
- Master-PUR STEP
- Miniflex PU
Our PU hoses are characterised by their high internal smoothness and are therefore particularly optimised in terms of flow, which results in less abrasion and higher flow rates. For your production, this means: long service life of transport lines, less downtime, high process reliability - and lower costs.
The properties of PUR hoses from Masterflex
All Masterflex polyurethane hoses have a number of material-related properties in common. These include, for example, significantly greater abrasion resistance compared to rubber or soft PVC - measured in accordance with DIN ISO 4649 (determination of abrasion resistance).
Many hoses made of PU also have a transparent hose wall. This allows users to keep an eye on the material flow in the hose at all times and recognise potential faults at an early stage. Furthermore, our hoses made of PU contain neither halogens nor plasticisers.
When special PU formulations (so-called special compounds) are used, the hoses even fulfil the strict requirements of the FDA (U.S. Food and Drug Administration) and EU Regulations 10/2011 and 2015/174. They are therefore approved for use in certain areas of medical technology and the food and pharmaceutical industries.
We can also upgrade the PU material by adding additives - and thus equip it with additional, customised properties. For example, we use PU with specifically enhanced material properties in our Flamex hoses. These flame-retardant polyurethane hoses are type-tested in accordance with DIN 4102-B1 and fulfil the safety requirements of the BGI 739-2.
