Ixef® PARA

Aesthetics and Strength – A Beautiful Combination

  Ixef® PARA product icon

Ixef® PARA (polyarylamide) provides a unique combination of strength and aesthetics, making it ideal for complex parts that require both overall strength and a smooth, beautiful surface.

Ixef® compounds typically contain 50-60% glass fiber reinforcement, giving them remarkable strength and rigidity. What makes them unique is that even with high glass loadings, the smooth, resin-rich surface delivers a high-gloss, glass-free finish that’s ideal for painting, metallization or producing a naturally reflective shell.

High flow into thin walls

In addition, Ixef® PARA is an extremely high-flow resin so it can readily fill walls as thin as 0.5 mm, even with glass loadings as high as 60%.

Excellent Surface Finish

Superb, resin-rich surface provides a highly polished appearance, even with high glass fiber content.


Ixef_InMold


Surface Roughness

Ixef_SurfaceRoughness

Very High Strength and Stiffness

The tensile and flexural strength of Ixef compounds are similar to many cast metals and alloys at ambient temperature. Ixef 1032 (60% glass fiber) exhibits typical values of 280 MPa and 400 MPa respectively at 23°C (73°F).


Tensile Strength vs. Tensile Modulus

Ixef_TensileStrengthModulus


Tensile properties comparison*
MaterialTensile Strength
at Break, MPa
Tensile Modulus,
GPa
Ixef 1022  (50% glass fiber)28020
Ixef 1032  (60% glass fiber)28024
Tin Bronze300105
Brass250105
Annealed Zinc150105
Zinc Alloy (4% Al, 0.04% Mg)28085
Annealed Aluminum (99.6%)7069
Duralumin19074
Al Ag3 Alloy14069

*ASTM Test Method at 23°C (73°F)


Flexural Strength vs. Flexural Modulus

Ixef_FlexuralStrengthModulus

Data Sheets

Broad Product Range

The semi-aromatic, semi-crystalline polyamide base resin is compounded with glass fiber, carbon fiber, mineral and/or advanced fillers. Impact modified and flame retardant grades as well as custom colors are available.

Standard grades
Glass Fiber Reinforced
Ixef 102250% glass fiber, general purpose for injection molding
Ixef 102750% glass fiber, improved thermal stability
Ixef 103260% glass fiber, general purpose for injection molding
Flame Retardant
Ixef 152150% glass fiber, flame retardant
Ixef 152450% glass fiber, halogen-free flame retardant
Toughened
Ixef 162250% glass fiber, impact modified
Mineral/Glass Fiber Reinforced
Ixef 203055% mineral/glass fiber, low warpage


Specialty grades
Glass Fiber Reinforced
Ixef 100230% glass fiber
Ixef GS-102250% glass fiber, gamma stabilized for healthcare applications
Ixef 102550% glass fiber, UV stabilized for automotive applications
Carbon Fiber Reinforced
Ixef 300830% carbon fiber
Food-Contact and Potable Water Applications
Ixef FC-102250% glass-fiber reinforced, approved for food-contact
Ixef DW-102250% glass-fiber reinforced, approved for potable water applications

Other Properties

Very Low Creep

The creep resistance of Ixef® compounds is superior to that of most engineering polymers with similar glass fiber content. Deformation of Ixef® 1032 is less than 1% after 1,000 hours under 50 MPa of pressure at 50°C (122°F).


Creep Resistance at Elevated Temperatures

Ixef_CreepResistance

Good Dimensional Stability

The coefficient of linear thermal expansion (CLTE) of Ixef® compounds is similar to that of many cast metals and alloys at ambient temperatures. Low mold shrinkage and the ability to maintain tight tolerances (as little as ± 0.05% length tolerances when properly molded) allow for high reproducibility.

Coefficient of Linear Thermal Expansion of Ixef® Resin
Ixef® 10221.5 10-5K-1 (Flow direction)
Ixef® 10223.6 10-5K-1 (Transverse direction)
Steel1.2 10-5K-1
Aluminum2.4 10-5K-1
Brass1.8 10-5K-1
Zinc3 10-5K-1

Low and Slow Rate of Water Absorption

Ixef® PARA’s highly aromatic structure results in lower and slower water absorption than typical polyamides, which are highly sensitive to humidity. Water absorption for Ixef® 1022 (50% glass fiber) is only 0.16% after 24 hours of water immersion at room temperature.


Moisture Absorption, 24h at 23 °C

Ixef_MoistureAbsorption

Good Chemical Resistance

Ixef® compounds are highly resistant to aqueous solutions of wide range of chemicals and cleaning fluids as well as to common solvents, such as:

  • Aliphatic hydrocarbons
  • Aromatic hydrocarbons
  • Chlorinated solvents
  • Ketones
  • Esters
  • Ethers
  • Glycols

Testing also shows good resistance to standard engine oil (Type SAE 10W30) after 2,000 hours at 120°C (248°F) and to automotive fuels after 2,000 hours at 40°C (104°F).

Ease of Processing

Ixef® resin offers good injectability even for grades with high glass fiber content – ideal for molding complex or thin-walled parts. Immediately below the smooth outer surface, glass fibers orient in the flow direction, while at the core, fiber orientation becomes random. The result is a strong polymer with a beautiful, smooth finish.

Recommendations for Processing

Processing Temperatures
Cylinder Temperature
Feed zone250 - 280°C
Compression zone250 - 280°C
Metering zone or homogenization zone250 - 280°C
Nozzle260 - 290°C
Hot runners (when used)250 - 260°C
Temperature of the Melt (measured on purged material)
Standard grades (eg. Ixef® 1022, 2030)280°C
Impact modified (eg. Ixef® 1622) and flame retardant grades (eg. Ixef® 1521, 1524)<270°C
Mold Temperature
Mold Temperature120 - 140°C
Plasticizing
Screw Speed, peripheral(1)3-10 m/min
Back Pressure0-10 bar
Injection
Injection SpeedHigh
Injection Pressure500-1500 bar (material)
Hold and Cooling
Hold Pressure500-1500 bar (material)
Hold time(sec)3w (2)
Cooling time, including hold time(sec)2.5w2 (3)

(1)for screw diameter 25-50 mm
(2)w = wall thickness in mm
(3)w = wall thickness in mm, > 2mm

Mold Temperature

It is essential that the mold temperature be 120°C to 140°C to achieve maximum crystallinity. This will assure:

  • Good surface finish
  • Good dimensional stability
  • Full mechanical properties
  • Low moisture absorption