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
- Excellent retention of mechanical properties after long-term high temperature exposure
- Soft tack and drape properties
- Long ambient out-time for maximum process flexibility
- Good electrical properties for RF applications
- Meets requirements of MIL-R-9300B Type II
- Product Forms
- Available on a wide variety of reinforcements
- Solution coated fabrics up to 60 inches wide
- Compatible with Autoclave or Press Molding processes
Applications & Uses
- Markets
- Applications
- Composites End Use
- Composites Processing Methods
- Autoclave Cure Cycle
- Apply 24”Hg vacuum (minimum) for 1 hour before beginning heat cycle - Apply 45 – 80 psi autoclave pressure.
- Vent vacuum when autoclave pressure reaches 15 – 20 psi - Raise product temperature from RT to 230°F at 2 – 5°F/min
- After 30 minute hold time at 230°F, continue ramp to 350°F
- Hold product at cure temperature for 2 hours
- Cool product to 150°F at no more than 8°F/min
- Recommended post-cure: 1 hours at 500°F or 4 hours at 400°F
Properties
- Mechanical Properties
Value Units Test Method / Conditions Tensile Strength - Dry (75°F) 65 Ksi - Tensile Strength - Dry (280°F) 50 Mpa ASTM-D-638 Tensile Strength - Dry (350°F) 45 Mpa ASTM-D-638 Tensile Strength - Dry (420°F) 45 Mpa ASTM-D-638 Tensile Strength - Dry (500°F) 45 Mpa ASTM-D-638 Compressive Strength - Dry (250°F) 75 Ksi - Compressive Strength - Dry (280°F) 50 Ksi - Flexural Strength - Dry (75°F) 90 Ksi - Flexural Strength - Dry (280°F) 75 Ksi - Flexural Strength - Dry (350°F) 40 Ksi - Flexural Strength - Dry (420°F) 30 Ksi - Flexural Strength - Dry (500°F) 20 Ksi - Short-Beam Shear Stength - Dry (75°F) 6.9 Ksi - Short-Beam Shear Stength - Dry (350°F) 3 Ksi - - Physical Properties
Value Units Test Method / Conditions Fabric Area Weight 300 gsm - Prepreg Resin Content 34 - 40 % - Resin Flow (325°F, 50 psi) 7 - 21 % - Volatiles (325°F) 2 % - Gel Time 1 - 3 minutes - Laminate Tg – std cure 180 °C - Laminate Tg – post cure 230 °C - Dielectric Constant (9.375GHz) 4.2 Dk - Loss Tangent (Df) (9.375GHz) 0.016 Df -
Regulatory & Compliance
- Quality Standards
Storage & Handling
- Prepreg Storage Life
- Tack Life: 14 days @ 75°F
- Out Life: 30 days @ 75°F
- Shelf Life: 12 months @ 0°F