Product Information

ROHACELL® XT
FOR THE MOST DEMANDING PROCESSCONDITIONSROHACELL® XT is a closed-cell rigid foam basedon polymethacrylimide (PMI) chemistry that iscompletely free of CFC’s and is engineered to meetextreme and demanding processing requirements.

These extreme properties make ROHACELL® XT theideal foam for use with BMI resins, among othermaterials.
ROHACELL® XT foam is suitable for autoclave
technologies, vacuum infusion, RTM and VARTM
processes.

PROCESSING AND PRODUCTIONTHERMOFORMING AND SHAPING

Of all the ROHACELL® grades, it is the grade thatis best suited to withstand the most demanding
process conditions: curing temperatures of up to180 °C (356 °F) and pressures as high as 0.45 MPa(65 psi).

ROHACELL® XT can be easily thermoformed or CNC
machined to meet customer requirements, bringing
tremendous manufacturing advantages.

After heat treatment, ROHACELL® XT-HT can evenbe used at temperatures of 190 °C (374 °F) andpressure of 0.7 MPa (102 psi) dependent upon
density. Typical curing temperatures of BMI resin
system of up to 210 °C (410 °F) can be applied ina pressureless post-cure process.

High precision, pre-shaped and ready-to-use foamcores in complex or simple geometries can also be
supplied by the ROHACELL® Shapes Department.

Property

Test Method*

Unit

ROHACELL®
71 XT

ROHACELL®
110 XT

Density

ISO 845
ASTM D 1622

kg/m³lbs/ft³

75
4.68

110
6.87

Compressive Strength

ISO 844
ASTM D 1621

MPa
psi

1.7
246

3.6
522

Tensile Strength

ISO 527-2
ASTM D 638

MPa
psi

2.2
319

3.7
536

Tensile Modulus

ISO 527-2
ASTM D 638

MPa
psi

105
15,220180
26,100Elongation at BreakISO 527-2
ASTM D 638%44

Shear Strength

DIN 53294
ASTM C 273

MPa
psi

1.4
203

2.1304

Shear Modulus

DIN 53294
ASTM C 273

MPa
psi

426,090

639,135

Technical data values presented above are typical for nominal density, subject to normal manufacturing variations. *Data values are
based on ISO & DIN standard test methods, however ASTM values can be confirmed upon request. All ROHACELL® products areclosed-cell rigid foams based on polymethacrylimide (PMI) chemistry and contain no CFC's.

Evonik Operations GmbH | ROHACELL® XT | April 2022

FOR MORE INFORMATION
If you have questions or would like to discuss using
ROHACELL® XT in your application, we encourage you
to talk with your local ROHACELL® representative.
Visit www.rohacell.com to locate and directly connect
with the contact in your region, by phone or email.

Disclaimer
ROHACELL® is a registered trademark of Evonik Industries
and its subsidiaries.
This information and all technical and other advice arebased on Evonik’s present knowledge and experience.
However, Evonik assumes no liability for such information
or advice, including the extent to which such informationor advice may relate to third party intellectual propertyrights. Evonik reserves the right to make any changes toinformation or advice at any time, without prior orsubsequent
notice.
EVONIKDISCLAIMSALL
REPRESENTATIONS AND WARRANTIES, WHETHER EXPRESSOR IMPLIED, AND SHALL HAVE NO LIABILITY FOR,MERCHANTABILITY OF THE PRODUCT OR ITS FITNESS FOR A
PARTICULAR PURPOSE (EVEN IF EVONIK IS AWARE OF SUCHPURPOSE), OR OTHERWISE. EVONIK SHALL NOT BERESPONSIBLE FORCONSEQUENTIAL, INDIRECTORINCIDENTAL DAMAGES (INCLUDING LOSS OF PROFITS) OF
ANY KIND. It is the customer’s sole responsibility to arrange
for inspection and testing of all products by qualified
experts. Reference to trade names used by other companies
is neither a recommendation, nor an endorsement of thecorresponding product, and does not imply that similar
products could not be used.

Evonik Operations GmbH │ Smart Materials
High Performance Polymers
Performance Foams
64293 Darmstadt, Germany
Phone +49 6151 18-1005
Evonik Corporation
Theodore, Alabama USA
Phone +1 866 764-6235
Evonik Specialty Chemicals(Shanghai) Co., Ltd.
Shanghai, China
Phone +86 21 6119 3788

Evonik Operations GmbH | ROHACELL® XT | April 2022