Epoxy Prepregs

WT 93

LOW TACK EPOXY SPRINT™
  • WT 93 low tack SPRINT™ resin matrix
  • Dry fabric enables efficient air evacuation
  • Good out-life at 21°C / 70°F
  • High flow matrix
  • Cure from 85°C to 120°C / 185°C to 250°F
  • Excellent laminate quality with low void content
  • Suitable for automated lay-up

WT 93 is part of Gurit’s comprehensive offering of structural composite product solutions comprising of 3 main product groups; Prepreg, SPRINT™ and SparPreg™. This unique product range provides technically and commercially competitive engineering materials, ideal for use either solely, or in conjunction with other Gurit products from within the range.

WT 93 can be cured at temperatures as low as 85°C / 185°F, but can also be used for the rapid manufacture of components through its 45-minute cure at 120°C / 250°F. All of this can be achieved together with an out-life of 60 days at 21°C / 70°F. WT 93 is designed for vacuum bag processing and offers excellent mechanical performance on glass and carbon fibre reinforcements.

Typical Applications

Gurit’s innovative WT 93 SPRINT™ product range uses a high flow, low tack epoxy prepreg ideally suited to the manufacture of thick sections such as turbine blade roots or spars.

Essential Product

Readily available to purchase via Gurit's global distributor network click to find a distributor near you.

Technical Data

​Cure Temp/Time

WT 93 offers flexible curing options. The recommended minimum cure is 600 minutes at 85°C (185°F).

PROPERTY OVEN / VAC BAG TEST STANDARD
Typical Laminate 4 plies of WT 93 XE600 (biax) prepreg with 35% resin content
Typical Ramp Time 1–2°C (2–4°F) per minute
-
Cure Temperature 85°C (185°F)
120°C (248°F) -
Cure Dwell Time 600 (min)
45 (min) -
Cure Pressure -1bar (14.5Psi) -
De-mould Temperature < 60°C (140°F)
-
Dry Tg1 (DMA) 110 - 125°C / 230 - 257°F
ASTM D2078
​​Cured Resin Prop.

4mm resin cast oven cured using standard processing techniques and cured at 120°C (175°F) for 90 minutes

PROPERTY 90 MINUTES @ 120°C (175°F) TEST STANDARD
Tensile Strength 57 MPa 8.3 Ksi ISO 527-2
Tensile Modulus 3.0 GPa 0.44 Msi ISO 527-2
Compressive Strength 125 MPa 18 Ksi ISO 604
Compressive Modulus 4.0 GPa 0.58 Msi ISO 604
​Cured Laminate

Cured using standard processing techniques and a minimum cure time of 90 minutes at 120°C (250°F)

PROPERTY YE1200 / TEA50
XE 600 TEST STANDARD
SPRINT™ Format Single Sided Single Sided -
Fabric / Fibre Description 1200g/m2 Stitched Triaxial using E-glass with a 50g/m2 glass fleece 600g/m2 Stitched Biaxial using E-glass
Resin Content 43%
35% -
Cure Method Vacuum bag cured at -1bar
-
Cure Schedule 90 minutes at 120°C (250°F) -
Glass Transition Temperature (DMA) 110-125°C 230-257°F 110-125°C 230-257°F ISO 6721
Cured Ply Thickness 1.27mm 0.050in 0.49mm 0.019 in ASTM D 3171
0° Tensile Cured Fibre Volume 35.6% 45.3% ASTM D 3171
0° Tensile Strength 668 MPa 97 Ksi 668 MPa 97 Ksi ISO 527-4
0° Tensile Modulus 32 GPa 4.6 Msi 32 GPa 4.6 Msi ISO 527-4
0° Comp Str Fibre Volume 37.2% 46.7% ASTM D 3171
0° Compressive Strength 729 MPa 106 Ksi 547 MPa 79 Ksi SACMA SRM1-94
0° Compressive Modulus Laminate Fibre Volume 36.1% 46.9% ASTM D 3171
0° Compressive Modulus 33 GPa 4.8 Msi 15 GPa 2.2 Msi SACMA SRM1-94
+/45° Tensile Cured Fibre Volume 35.8% 46.2% ASTM D 3171
+/45° Tensile Strength 173 MPa 25 Ksi 179 MPa 26 Ksi ISO 527-4
+/45° Tensile Modulus 14 GPa 2.0 Msi 12.9 GPa 1.87 Msi ISO 527-4
+/45° IPS Fibre Volume - 47.2% ASTM D 3171
+/45° In-Plane Shear Strength - - 231 Mpa 34 Ksi ISO 14129
+/45° In-Plane Shear Modulus - 10 GPa 1.5 Msi ISO 14129
+/45° In-Plane Shear Posissons Ratio - 0.16 ISO 14129
0° ILSS Fibre Volume - 46.5% ASTM D 3171
0° ILSS - - 51 MPa 7.4 Ksi ISO 14130
+/-45° ILSS Fibre Volume 37.8% - ASTM D 3171
+/-45° ILSS 34 Mpa 4.9 Ksi - - ISO 14130
​Third Party Certs
CERTIFICATE ISSUER CERTIFICATE
Germanischer Lloyd WP 1230023 HH
Germanischer Lloyd WP 1230024 HH
​Ancilliaries
PRODUCT DESCRIPTION
SF 80 SPRINT™ Toughened Surfacing Film
SA 80 Epoxy Adhesive Film
SP 9435 Mono-Component Epoxy System