Fire, Smoke and Toxicity Retardant Materials (FST)

ST 70FR

FIRE RETARDANT SPRINT™
  • Meets BS476 part 6 & 7 class 0 rating
  • Achieves BS6853 Annex B2
  • Capable of meeting FAR25.853, 12 second & 60 second burn
  • Suitable for Lloyds and MCA compliant structures
  • SPRINT™ format allows high quality thick cored laminates to be produced in one operation

ST 70FR is a low temperature curing fire retardant epoxy SPRINT™ product.

The SPRINT™ format makes this product ideal for the manufacture of thick sections requiring a high level of fire protection. It can be cured at temperatures as low as 70°C, but can also be used for the rapid manufacture of components through its 25-minutes cure 120°C.

ST 70FR provides high quality laminates from out of autoclave, vacuum only processing.

Typical Applications

Industrial / commercial marine craft and civil applications where thick fire retardant laminates are required.

Technical Data

​Cured Prop.
MECHANICAL PROPERTIES
Tensile Strength (MPa) 57
Tensile Modulus 3 GPa
Tensile Strain (%) 3%
Compression Strength 125 MPa
Compression Modulus 4 GPa
Matrix density 1.3 g/cm3
Glass Composite density 1.8 g/cm3
​​SPRINT™ Prop Uncured
SPRINT™ Reinforcement WRE 581T QE1174/SS WRE 850T XE 905/SS
Resin Content 39% 39% 39% 39%
Fibre Weight (g/m2) 581 1200 850 900
Aerial Weight (g/m2) 952 1925 1393 1475
Resin Weights Available 39% 39% 39% 39%
Weave 2x2 twill Quadraxial Glass 2x2 twill Biaxial Glass
Backer Type Paper Paper Paper Paper
Available Roll Width 1250mm 1270mm 1250mm 1270mm
Packaging Type Packaging type is dependant on the length of roll requested
​SPRINT™ Cured Prop
SPRINT™ Reinforcement QE1174/SS XE 905/SS WRE581T/SS WRE850T
16 hours 70°C 45% 45% 39% 39%
Tg1 (°C) (Laminate) 93.8 93.8 93.8 93.8
Tg Peak Tan Delta 105.3 105.3 105 105
0° Tensile Strength (MPa) 330.8 457.7 490.6 465.9
0° Tensile Modulus (GPa) 18.72 22.86 27.86 28.12
0° Comporessive Strength (MPa) 386.6 521.5 488.5 547.55
0° Compressive Modulus (GPa) 19.26 23.84 27.76 29.91
0° ILSS (MPa) 34.2 42 54.11 38.84
0° Tensile Strength (MPa) N/A 106.4 N/A N/A
0° Tensile Modulus (GPa) N/A 12.46 N/A N/A
​Fire Performance
SPRINT™ Reinforcement WRE 581T (39%) 16 hours at 70°C
TEST METHOD
Surface Spread of Flame < 165mm Class 1 BS476 part 7
Fire Propagation I =11.3 ( i1 1.7) (i2 7.3) (i3 2.3) Class 0 BS476 part 6
Area Based Toxicity R=1.2
BS 6853 Annexe B.2
​3rd Party Cert
CERTIFICATE ISSUER CERTIFICATE
Instytut Kolejnictwa IK. LKA33.A63/14
BRE 242094
BRE 242095
BRE 243234
Exova Warringtonfire 318105
Exova Warringtonfire 320352
Exova Warringtonfire 331452
Exova Warringtonfire 331453
Exova Warringtonfire 331454
Exova Warringtonfire Test Report 2014-1198
Exova Warringtonfire Test Report 2014-1176