company tower banner
Toray Company Logo

Toray MicroPly™ EM-5A

1 of 21 products in this brand
Toray Toray MicroPly™ EM-5A is a 177°C (350°F) cure expanding cyanate ester syntactic film (core splice). Its unexpanded density is approximately 50 pcf (0.80 g/cc) and exhibits an expansion ratio of up to 4x. It is available in continuous film rolls or in sheet form from thicknesses of 10–125 mils (0.25–3.18 mm). Standard widths are 61 cm (24”), but alternative widths up to 127 cm (50”) are available upon request. 177°C (350°F) Cure Cyanate Ester Syntactic Core Splice Film.

Functions: Molding Compound

Chemical Family: Cyanate Esters

Processing Methods: Out of Autoclave Prepreg, Prepreg Processing, Vacuum Bagging

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Composite Materials Functions

Features & Benefits

Product Highlights
  • Ambient work life of more than 28 days
  • Good handleability and drape with minimal slump
  • Flexible cure processing under vacuum, autoclave, or press
  • Co-curable with composite prepregs
  • Lightweight film core: 50 pcf, nom. (0.80 g/cc)

Applications & Uses

Recommended Applications
  • Space & Satellite
  • Radome
  • Aerospace structures

Properties

Physical Form
Thermal Properties
ValueUnitsTest Method / Conditions
Dry Tg (DSC) with 177°C (350°F) standard cure 2 hrs204 (400)°C (°F)
Typical Properties
ValueUnitsTest Method / Conditions
Expanded Density12-18 (0.19–0.29)pcf (g/cc)
Expansion at 4x expansion10 (0.16)pcf (g/cc)
Gel time at 177°C (350°F)~ 8minute
Minimum Density at Fullexpanded
Outgassing (CVCM)0.01%
Outgassing (TML)0.59%
Unexpanded50 (0.80)pcf (g/cc)
Volatile Contentmax. 1%

Storage & Handling

Shelf Life
  • Out Life: 28 days out life ≤ 21°C (70°F) and ≤ 60% RH
  • Frozen Storage Life: 12 months at ≤-18°C (≤ 0°F)

Out life is the maximum time allowed at 21°C (70°F) or below and 60% or less RH before cure, after a single frozen storage cycle in the original unopened packaging at -18°C (0°F) or below for a period not exceeding the frozen storage life noted above.