HR-7748

HRC 7748 is a lightweight, closed-cell fluorosilicone sponge material, developed to meet the SAE AMS 3323 specification. The sheets are designed for use in aircraft and aerospace industries, where gaskets are subjected to extremely harsh environments involving various chemicals, fuels, and a wide variety of temperature extremes. This material has passed all requirements for exposure to jet fuel per the ASTM D 471 Fuel B specification.

Application Advantages:

  • Lightweight
  • Resistance to temperature extremes
  • Excellent gasket material
  • Low closure force
  • Very low compression set
  • Ultraviolet ray (UV) resistant
  • Ozone resistant
  • Non-conductive insulating material
  • Fuel resistance

TYPICAL PHYSICAL PROPERTIES

PropertyTest MethodValue
25% Compression Deflection ATMD D10562 - 9 psi
50% Compression Set
(22 hrs @ +212°F)
ASTM D105625%
Density (max.)ASTM D10560.02575%
Fluid ResistanceASTM D471 (Fuel B)Weight change 0-50%
Temperature Resistance (continuous)-85°F to +400°F

Specifications:
SAE AMS 3323 CLASS 1

Availability:
Sheet goods 36″ x 36″
Ranging from .125″ to 1″ thicknesses

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