Fire, Smoke and Toxicity Retardant Materials (FST)

GURIT® G-PET™ FR

  • Excellent FST performance (Evaluated against DIN 5510, ASTM E1354, ASTM E662 & BSS7239)
  • Withstands high process temperatures
  • Excellent chemical resistance
  • Good adhesion and mechanical properties
  • Recyclable
  • Compatible with all composite processes
  • Available with G-PET™LITE technology

Gurit® G-PET™ 75FR and G-PET™ 100FR have been developed in order to meet the growing need for structural core materials with good Fire, Smoke and Toxicity (FST) properties used in Marine, Civil and Transportation markets. It offers a much lower cost FST material compared to high cost / high performance materials such as PMI (Rohacell), PEI (Ultem), PES (DIAB F) foams, addressing lower requirements and needs.

Starting with Gurit® G-PET™ which Gurit’s extruded structural PET core, flame retardant additives are added to improve FST properties. The manufacturing process remains the same as G-PET™, with slight variation in process settings. The material is available in all standard knife cut finishes as well as the new surface heat treatment technology Gurit® G-PET™ LITE. Gurit® G-PET™ FR is produced in Gurit Tianjin, China.

Typical Applications

Gurit® G-PET™ can be processed at high temperatures, withstanding exotherms up to 150°C and offers outstanding fatigue properties, chemical resistance, good adhesion, is a highly consistent extruded foam, it is ideal for wind energy, marine, industrial, and transportation applications. Applicable processing techniques include vacuum infusion, bonding, prepreg, and thermoforming.

Technical Data

​Sheet Sizes
DENSITY
HALF SHEET SIZE NOMINAL SHEET SIZE
mm inches mm inches
G-PET 60 FR 1005/1220 x 1220 39.5/48 x 48 1005/1220 x 2440 39.5/48 x 96
G-PET 75 FR 1005/1220 x 1220 39.5/48 x 48 1005/1220 x 2440 39.5/48 x 96
G-PET 100 FR 1005/1220 x 1220 39.5/48 x 48 1005/1220 x 2440 39.5/48 x 96
G-PET 200 FR 1005/1220 x 1220 39.5/48 x 48 1005/1220 x 2440 39.5/48 x 96
​​Unbonded Thickness
DENSITY
UNBONDED THICKNESS
mm inches
G-PET 60 FR 3-245 1/8 - 9 5/8
G-PET 75 FR 3-245 1/8 - 9 5/8
G-PET 100 FR 3-245 1/8 - 9 5/8
G-PET 200 FR 3-245 1/8 - 9 5/8
​Mechanical Properties
TYPE
UNITS G-PET 60FR G-PET 75 FR G-PET 100 FR G-PET 200 FR
Nominal Density kg/m³ 65 75 100 200
lb/ft³ 4.1 4.7 6.2 12.5
Density Range kg/m³ 60-70 70-80 95-105 195-205
lb/ft³ 3.7-4.4 4.4-5.0 5.9-6.6 12.2-12.8
Compression Strength
MPa 0.7 0.82 1.36 3.05
psi 99 119 197 442
Compressive Modulus          
ASTM D1621-2110 (ISO 844)
MPa 49 32 56 134
psi 7107 4641 8122 19435
ASTM D1621b-1973 MPa - 48 85 169
psi - 6962 12328 24511
Shear Strength MPa 0.49 0.60 0.96 1.87
psi 71 87 139 271
Shear Modulus
MPa 12 14 21 45
psi
​Third Party Certifications
CERTIFICATE ISSUER CERTIFICATE