Flame-retardant new developments in GRAFE

Flame-retardant new developments in GRAFE

The GRAFE Group of Blankenhain will be presenting two new product developments at the upcoming Fakuma. Alongside other products, the company will be introducing an electrically conductive and halogen-free, flame-retardant PP compound at the international plastics trade fair which will be held from 13 to 17 October 2015 in Friedrichshafen.

“It was our goal to develop a material with good mechanical features and flow properties in addition to being conductive and flame-retardant. And we have succeeded,“ says Martin Günther, development engineer.

The specific volume resistivity or surface resistivity of the new product is adjustable to suit the customers’ applications. Settings below 100 Ohm will also be possible. „This PP compound meets the requirements of flammability rating UL94 V-0 for wall thicknesses of up to 1.6 millimeters”, explains Günther. „This opens up the door to numerous applications where fire and explosion protection play an important role and where, in the past, it was necessary to use brominated flame retardants.” Some examples of use include containers for the transportation of highly inflammable process media as well as conveyor belts and storage containers in explosion and fire protection areas.

The second new development of the GRAFE Group involves halogen-free flame-retardant polypropylene compounds which are available for customers in any desired color. „This is about endowing a material with effective flame-retardant properties to meet the requirements of flammability rating UL94 V-0 even for very thin walls – here we are talking about 0.8 millimeters”, according to the development engineer. “With this development, we were also able to minimize any loss of mechanical properties that flame retardants might cause. It is especially important that we could avoid an embrittlement of the plastic. The material also displays good flow properties and is thus suitable for the manufacture of thin-walled parts”.

Visit the GRAFE-Stand at the FAKUMA: Hall B5, Stand 5306.


  • autor:
  • GRAFE Advanced Polymers GmbH

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