PRODUCT DATASHEET

Gurit Kerdyn™
STRUCTURAL FOAM CORE
RECYCLED AND RECYCLABLE

Kerdyn™ is a thermoplastic foam developed to respond to the growing need for

structural core materials and reduce product’s carbon footprint and materials waste. ■ Density from 80 to 300 kg/m 3
Based on recycled PET and fully recyclable material, Kerdyn™ is a highly stable and
adaptable core material with good mechanical properties, lower resin uptake, and ■ Fully recyclable material
then an excellent balance between performances, cost, density and processability.
■ Up to 100% recycled PET
Kerdyn™ is compatible with mostly all resin systems including vinyl ester, epoxy, based product range
unsaturated polyester and usable with a wide range of processing technologies
including vacuum infusion, prepreg, wet lay-up, bonding, kitting, thermoforming. ■ Sustainable alternative to other
It can be processed at high temperatures, withstanding high exotherms and offers foams or wood-based products
outstanding chemical resistance, low water absorption and a very good adhesion.
■ Wide range of thicknesses
Kerdyn™ is available in a wide range of densities and thicknesses.

Product can be delivered in Lite version with surface treatment to lower resin uptake. ■ Low resin uptake performance
Surface finishing options to provide more flexibility in shaping and improve processing ■ Wide processing methods
performances (pinholes, cuts, grooving or scrimmed) are available upon request.

Gurit can even tailor to your specific requirements through own kitting capabilities, ■ Good mechanical properties
please contact your local representative for further information.
■ Good chemical resistance

TYPICAL APPLICATIONS ■ Good adhesion skin to core

As highly consistent extruded foam, Kerdyn™ is ideal for applications in: ■ Plain, finished, kitted sheets
• Wind energy for rotor blades, nacelles, spinners, covers, tips
■ Sealed surface available
• Marine for deck, floor, hull, structures, bulkhead, interiors, furniture
• Industrial for housing, container, doors, window frames, domestic goods ■ DNV Certified
• Transportation for automotive interiors, bus, trucks flooring, caravanning

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TECHNICAL INFORMATION

General working practices apply to these products can be obtained from the Gurit Guide to Composites or by contacting a Gurit representative (see contact information).
PROPERTY UNIT Kerdyn™ 80 Kerdyn™ 100 Kerdyn™ 115 Kerdyn™ 135 Kerdyn™ 150 Kerdyn™ 200 Kerdyn™ 235 Kerdyn™ 250 Kerdyn™ 300 STANDARD
kg/m3 80 100 115 135 150 200 235 250 300
Nominal Density ISO 845
lb/ft3 4.99 6.24 7.18 8.43 9.39 12.49 14.67 15.61 18.73
kg/m3 75-85 95-105 110-120 130 - 140 143-157 190-210 225-245 240-260 288-312
Typical Density range ISO 845
lb/ft3 4.68-5.31 5.93-6.55 6.87-7.49 8.11-8.74 8.93-9.80 11.86-13.11 14.05-15.29 14.98-16.23 17.98-19.48
Compression MPa 0.86 1.30 1.65 2.12 2.49 3.79 4.63 5.21 6.50
ISO 844
Strength Psi 125 189 239 307 361 550 672 756 943
Compressive MPa 74 91 105 126 142 203 246 276 335
ISO 844
Modulus Psi 10 733 13 198 15 299 18 275 20 595 29 443 35 679 40 030 48 588
MPa 0.59 0.80 0.97 1.20 1.40 2.04 2.23 2.36 2.66
Shear Strength 0º ASTM C-273
Psi 81.22 116 141 174 203 296 323 342 386
MPa 18 25 30 37 43 62 76 83 105
Shear Modulus 0º ASTM C-273
Psi 2 611 3 626 4 351 5 399 6 237 8 992 11 022 12 038 15 229
MPa 0.58 0.79 0.95 1.17 1.35 1.95 2.17 2.31 2.65
Shear Strength 90º ASTM C-273
Psi 84.12 114 138 170 196 283 315 335 384
MPa 16 23 27 34 39 57 69 75 93
Shear Modulus 90º ASTM C-273
Psi 2 321 3 336 3 916 4 931 5 656 8 268 10 008 10 878 13 488
Shear Elongation % 16 16 13 10 9 6 5 4 - ASTM C-273
MPa 1.54 1.82 2.02 2.27 2.45 2.98 3.26 3.42 3.77
Tensile Strength ASTM D-1623
Psi 223 264 293 329 355 432 473 496 547
MPa 85 103 116 136 152 214 260 290 -
Tensile Modulus ASTM D-1623
Psi 12 328 14 939 16 825 19 725 22 045 31 038 37 710 42 061 -
Thermal conductivity** W/(m.K) 0.032 0.033 0.034 0.036 0.037 0.040 0.043 0.044 0.047
EN 12667
ʎ at 23°C (73°F) BTU/h∙ft∙°F 0.018 0.019 0.019 0.020 0.021 0.023 0.024 0.025 0.027
Fire Properties * Class Class E* EN 13501-1

* Rating dependent on thickness and density, users should test their own proposed configuration
** Data for indication, normalized to nominal density, tests performed on sample size Length 600 x Width 600 x Thickness 50mm, users should test their own configuration according to their end-application or fit to purpose.
The technical data are means values for information based on results achieved under specific and/or defined test conditions. Customers with specific requirements must carry out tests to prove conformity to their own requirements.

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PRODUCT DELIVERY

UNIT Length Width Diagonal Thickness

mm 2440 1005 / 1220 (1)

5 – 200 (2)
Dimensions
inches 96 39.5 / 48 (1)
0.2 – 7.9 (2)
< 100: +/- 0.5
mm -3 / +6 -3 / +5 <2
(3)
≥ 100: +/- 1
Tolerances
< 3.9: +/- 0.02
inches -0.12 / 0.24 -0.12 / 0.20 < 0.08
≥ 3.9: +/- 0.04

(1) Depending on combination of length/width Physical properties are not affected by variances in colour.
(2) Maximum thickness depending on the density Customs tariff code: 39211900
(3) Tolerances at room temperature

NOTICE
All advice, instruction or recommendation is given in good faith but the selling Gurit entity (the Company) only warrants that advice in writing
is given with reasonable skill and care. No further duty or responsibility is accepted by the Company. All advice is given subject to the terms
and conditions of sale (the Conditions) which are available on request from the Company or may be viewed at Gurit’s Website:
https://www.gurit.com/terms-and-conditions/
The Company strongly recommends that Customers make test panels in the final process conditions and conduct appropriate testing of
any goods or materials supplied by the Company prior to final use to ensure that they are suitable for the Customer’s planned application.
Such testing should include testing under conditions as close as possible to those to which the final component may be subjected. The
Company specifically excludes any warranty of fitness for purpose of the goods other than as set out in writing by the Company. Due to the
varied nature of end-use applications, the Company does, in particular, not warrant that the test panels in the final process conditions and/or
the final component pass any fire standards.
The Company reserves the right to change specifications and prices without notice and Customers should satisfy themselves that
information relied on by the Customer is that which is currently published by the Company on its website. Any queries may be addressed
to the Technical Services Department.
Gurit is continuously reviewing and updating literature. Please ensure that you have the current version by contacting your sales contact
and quoting the revision number in the bottom left-hand corner of this page.

CONTACT INFORMATION
Please find your local contact information at www.gurit.com
Otherwise contact customer.support@gurit.com

24-HOUR CHEMICAL EMERGENCY NUMBER

For advice on chemical emergencies, spillages, fires or exposures:

Europe +44 1273 289451

Americas +1 646 844 7309
APAC +65 3158 1412

All trademarks used or mentioned in this document are protected by law.

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