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Barrday EPM503-1

Barrday EPM503-1 is a toughened, low heat release epoxy prepreg system designed for a variety of aircraft interior applications. EPM503-1 provides the low OSU heat release typically attributed to phenolic systems combined with the mechanical properties of an epoxy system. EPM503-1 is self-adhesive to honeycomb and has excellent surface finish. EPM503-1 is currently offered as a press grade system. Quality Certifications Barrday Composite Solutions is ISO9001 and AS9100 certified.

Polymer Name: Epoxy Resins & Compounds

Functions: Prepreg

End Uses: Tanks

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Reinforcement Form
Composite Materials Functions

Features & Benefits

Product Highlights
  • Self-extinguishing. Meets FAR 25-853 flammability requirements
  • Very low heat release (30/30)
  • Halogen, antimony, formaldehyde, phenol-free
  • Good mechanical properties
  • Self-adhesive to honeycomb
  • High quality surface finish

Applications & Uses

Composites End Use

Properties

Physical Form

Technical Details & Test Data

Process Information

The following are general recommendations for successful processing. Adjustments may be required to achieve optimum results in your specific manufacturing environment.

Press Cycle (In-hot, Out-hot) : 

  • Recommended 60 - 90 psi pressure
  • Cure at 260 - 280oF (127 - 138oC) for 30 - 60 min.
  • Bumps recommeneded (no later than 5 min.)

Packaging & Availability

Country Availability
Regional Availability
  • Europe
  • North America
Product Forms

EPM503-1 is available as a woven fabric prepreg in carbon and glass reinforcements. Resin content and other specifications can be tailored as per customer requirements.

  • Standard fabric prepreg widths: 50”, 60

Storage & Handling

Shelf Life
  • Room Temperature (77oF/25oC) - 6 weeks
  • 0oF (-18oC) - 12 months