Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Family
- Polymer Name
- Reinforcement Material
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Key Features & Benefits
- Controlled flow for ease of processing
- Self adhesive for honeycomb or foam sandwich laminates without the use of film adhesive
- Flexible cure temperature range of 180°F to 250°F
- Good electrical properties
- Flame and fire retardant per FAR 25.853
- Wet service temperatures up to 180°F
- Product Forms
- Available on a wide variety of reinforcements, including fiberglass, quartz (including Astroquartz®), graphite and aramid (including Kevlar®)
- Solution coated fabrics up to 60 inches wide
- Also available on aluminized fiberglass (TEF-7)
- Compatible with Autoclave, Vacuum Bag/Oven or Press Cure processes.
Applications & Uses
- Markets
- Applications
- Composites End Use
- Composites Processing Methods
- Applications / Qualifications
- Radomes
- Aircraft Interiors
- Secondary Aircraft Structures
- Sandwich Panels
- MRI Resonators
- Widely specified on commercial and military aircraft programs
- Autoclave Cure Cycle
- Apply 24”Hg vacuum (minimum) and 40 -100 psi pressure
- Vent Vacuum when autoclave pressure reaches 15 – 20 psi
- Increase from room temperature to 250 – 260 °F at a rate of 2-5°F/min (maximum)
- Reduce cure temperature to 230°F (maximum) for Spectra® prepregs
- Hold cure temperature for 90 – 120 minutes
- Cool to 150°F at 8°F/min prior to releasing autoclave pressure
- Vacuum Bag / Oven Cure Cycle
- Apply 24”Hg vacuum (minimum) and maintain throughout cure cycle
- Increase from room temperature to 250 – 260 °F at a rate of 2-5°F/min (maximum)
- Reduce cure temperature to 230°F (maximum) for Spectra® prepregs
- Hold temperature and vacuum for 90 – 120 minutes
- Cool to 150°F at 8°F/min prior to releasing vacuum
Properties
- Physical Properties
Value Units Test Method / Conditions Fabric Area Weight 8.95 gsm - Prepreg Resin Content 39 % - Resin Flow (350°F, 100psi, 20 min) 14 % - Volatiles (350°F, 8 min) 1.5 % - Gel Time 240 Seconds - Tg (dry, by DMA) 115°C / 240°F - - Dielectric Constant 4.2 Dk - Loss Tangent 0.013 Df - - Mechanical Properties
Value Units Test Method / Conditions Per Ply Thickness 0.009 inches - Climbing Drum Peel (Mold Surface) 14.7 in-lb/3 in ASTM-D-1781 Climbing Drum Peel (Bag Surface) 14.8 in-lb/3 in ASTM-D-1781 Flatwise Tensile Strength (Mold Surface) 840 psi - Flatwise Tensile Strength (Bag Surface) 693 / 549 psi - Long Beam Flexure Strength (Mold Surface) 205 lbs - Long Beam Flexure Strength (Bag Surface) 157 / 130 lbs - Long Beam Flexure (Mold Surface) 201 P/Y lb/in - Long Beam Flexure (Bag Surface) 152 / 124 P/Y lb/in - Tensile Strength - Dry (65°F) 95 Ksi ASTM-D-638 Tensile Strength - Dry (70°F) 72 Ksi ASTM-D-638 Tensile Strength - Dry (160°F) 65 Ksi ASTM-D-638 Tensile Strength - Dry (200°F) 47 Ksi ASTM-D-638 Tensile Strength - Wet (70°F) 59 Ksi ASTM-D-638 Tensile Strength - Wet (160°F) 52 Ksi ASTM-D-638 Tensile Modulus - Dry (-65°F) 3.5 Msi ASTM-D-638 Tensile Modulus - Dry (70°F) 3.7 Msi ASTM-D-638 Tensile Modulus - Dry (160°F) 3.7 Msi ASTM-D-638 Tensile Modulus - Dry (200°F) 3.9 Msi ASTM-D-638 Tensile Modulus - Wet (70°F) 3.4 Msi ASTM-D-638 Tensile Modulus - Wet (160°F) 3.3 Msi ASTM-D-638 Compressive Strength - Dry (65°F) 84 Ksi ASTM-D-695 Compressive Strength - Dry (70°F) 66 Ksi ASTM-D-695 Compressive Strength - Dry (160°F) 55 Ksi ASTM-D-695 Compressive Strength - Dry (2000°F) 52 Ksi ASTM-D-695 Compressive Strength - Wet (70°F) 56 Ksi ASTM-D-695 Compressive Strength - Wet (160°F) 47 Ksi ASTM-D-695 Compressive Modulus - Dry (65°F) 3.7 Msi ASTM-D-695 Compressive Modulus - Dry (70°F ) 3.6 Msi ASTM-D-695 Compressive Modulus - Dry (160°F ) 3.5 Msi ASTM-D-695 Compressive Modulus - Dry (200°F ) 3.5 Msi ASTM-D-695 Compressive Modulus - Wet (70°F ) 3.6 Msi ASTM-D-695 Compressive Modulus - Wet (160°F ) 3.5 Msi ASTM-D-695 Flexural Strength - Dry (70°F) 95 Ksi ASTM-D-790 Flexural Strength - Dry (160°F) 77 Ksi ASTM-D-790 Flexural Strength - Dry (200°F) 66 Ksi ASTM-D-790 Flexural Strength - Wet (70°F) 80 Ksi ASTM-D-790 Flexural Strength - Wet (160°F) 65 Ksi ASTM-D-790 Flexural Modulus - Dry (65°F) 3.2 Msi ASTM-D-790 Flexural Modulus - Dry (65°F) 117 Ksi ASTM-D-790 Flexural Modulus - Dry (70°F) 3.2 Msi ASTM-D-790 Flexural Modulus - Dry (160°F) 2.9 Msi ASTM-D-790 Flexural Modulus - Dry (200°F) 2.8 Msi ASTM-D-790 Flexural Modulus - Wet (70°F) 3 Msi ASTM-D-790 Flexural Modulus - Wet (160°F) 2.7 Msi ASTM-D-790 Short Beam Shear - Dry (65°F) 11.5 Ksi ASTM-D-2344 Short Beam Shear - Dry (70°F) 9 Ksi ASTM-D-2344 Short Beam Shear - Dry (160°F) 6.5 Ksi ASTM-D-2344 Short Beam Shear - Dry (200°F) 5.2 Ksi ASTM-D-2344 Short Beam Shear - Wet (70°F) 8 Ksi ASTM-D-2344 Short Beam Shear - Wet (160°F) 6 Ksi ASTM-D-2344 - Electrical Properties
Value Units Test Method / Conditions Frequency 9.375 GHz -
Regulatory & Compliance
- Quality Standards
Storage & Handling
- Prepreg Storage Life
- Tack Life: 14 days @ 75°F
- Out Life: 30 days @ 75°F
- Shelf Life: 6 months @ 0°F