EVONIK INDUSTRIES composit matherials

ROHACELL

For more than 40 years, Evonik's ROHACELL structural foam has been offering the aerospace and automotive industries, medical technology, and other markets boundless possibilities for lightweight construction of parts or products made from high-performance composites. In such applications ROHACELL, which is based on polymethacrylimide (PMI), is used as a core between, for example, CFRP facings.

Polymethacrylimide (PMI) advantages (closed-cell rigid foam):

- capability of termoforming

/in contradistinction from honeycomb, which geometry will be violated if curved and lead to worsen structural performance of a part, Rohacell maintain structural strength/

- ease of workability

- compatibility with any resin and thermoplastic polymers

- 100% closed-cells structure

- high deformation point (up to +235)

- excellent weight to rigidity ratio

- CFC and halogen free

- good dielectricity properties

- transparency for number of rays

- non-toxic, low smoke emission

- high corrosion resisatance

In addition to more than 200 customer specifications a lot of specific approvals for the use of ROHACELL exist from major players in the aviation & aerospace

industry, for example:

Airbus UK Approval No. 100300

Airbus Approval No. 192744

Rolls Royce Approval No. 100730

BAE Systems Approval No. BAE/AG/30540/MAA

AugustaWestland Approval No. G13G

Nato Gage Code Approval No. D-2204