High Pressure RTM

With the longest standing history of epoxy and polyurethane solutions in automotive high-pressure RTM (HP-RTM) mass produced parts, Huntsman systems are tested and proven under the most demanding automotive applications. We leverage this experience to provide a complete range of solutions. The newest epoxy systems are built on the first generation products qualified for the first mass produced automotive carbon composites application – the BMW i program. RIMLINE® and VITROX® polyurethane systems offer low, initial mixed resin viscosity, good wetting characteristics and no VOC emissions. These resin systems are ideally suited for high Vf% glass or carbon fiber composite components in demanding applications where superior strength and durability are required. RIMLINE® and VITROX® polyurethane systems are available with or without IMR and with a catalyst level tuned to suit customer processes.

Epoxy Key Applications

  • Body Panels
  • Pillars
  • Load Floors
  • Underbody
  • Wheels
  • High temp structures

Epoxy Advantages

  • High latency during mold filling
  • Fast cure
  • Rapid demold stiffness
  • High tensile elongation at break

Polyurethane Key Applications

  • Structural load floors
  • Underbody
  • Leaf springs
  • Seat frames and pans
  • Pillars
  • Hood inner panel

Polyurethane Advantages

  • Low viscosity
  • Durability
  • Fast cure

Araldite LY 3585 / Aradur 3475

Tensile Modulus
ISO 527-2 on neat resin
2700 – 2900 MPa
Tensile Strength
ISO 527-2 on neat resin
75 – 80 MPa
Tensile Elongation
ISO 527-2 on neat resin
8 – 10%
DMA Tg onset
ISO 6721 on CFRP
105 – 115°C
ILSS
ASTM 02344 on CFRP
58 MPa

Araldite LT 3366 Performing Solution

Epoxy binder qualified for mass production of powdered fabrics and preforms. Provides a high softening point that prevents ply-to-ply adhesion during storage and fiber distortion during injection

Softening Point Ca. 150°C
DSC Tg mid-point 1s -85°C
Typical preforming cycle + cold stamping 20 ± 10s at 190 ± 20°C

Rimline® RTM 97049 Resin / Suprasec® 9701 MDI

Tensile Modulus
ASTM D638 on neat resin
2850 – 3000 MPa
Tensile Strength
ASTM D638 on neat resin
80 – 90 MPa
Tensile Elongation
ASTM D638 on neat resin
8 – 10%
Initial Mixed Viscosity 250 – -300mPa*s (25°C)
40 – 60 mPa*s (90°C)
DMA Tg onset
ASTM D7028 on neat resin
105 – 115°C
G1 ASTM D5045 on neat resin
ASTM D5045 on neat resin
450 – 500 J/m2

 

 

 


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