Toughened Epoxy Systems

Royce provides a full line of toughened epoxy products known for its strength and flexibility. The following products provide high strength solutions for applications, such as structural adhesives, composites, industrial coatings, secondary containment, electrical potting and encapsulating, and molding compounds.

Applications

  • Adhesives and composites
  • Coatings and secondary containment
  • Electrical potting, encapsulating, and molding compounds

Features & Benefits

  • Excellent adhesion to most substrates with crack resistance
  • Excellent thermal shock and fatigue resistance
  • High peel and shear strength with retention of modulus
  • Excellent flexibility, fracture toughness and impact resistance
  • Good chemical resistance

Typical Product Properties

PROPERTYUNITER 7034ER 7042ER 8003ER 8005ER 8006ER 8095
Epoxy TypeDi-functional DiluentDi-functional DiluentBis-F EpoxyBis-A EpoxyBis-A EpoxyBis-A Epoxy
CTBN modification%50504040405
AppearanceVisualAmber LiquidAmber LiquidAmber LiquidAmber LiquidAmber LiquidAmber Liquid
Viscosity @ 25°CPoise40 – 100150 – 3001500 – 30003000 – 80001500 – 30001500 – 5500
Epoxide Equivalent Weight (EEW)g/eq275 – 320325 – 390285 – 330285 – 375330 – 360195 – 210
Typical Mix with Epoxy

Mix 10-50% of the above product with 50-90% of ER 728 (LER)

Curing AgentPHR

Cure with 25-35 phr of CR 5491 (amidoamine) or 10-15 phr of CR 555 (TETA)

Disclaimer: The properties listed above are typical values and should not be taken as products or sales specifications. All recommendations for use of products, whether given in writing, verbally, or to be implied from the results of tests carried out are based on the current state of knowledge. Although the information contained in this sheet is accurate to the best of our knowledge, no liability can be accepted in respect of such information and no warranty or conditions are intended in respect of the product described as the conditions of applications are beyond our control. We do not guarantee performance in the end application. The responsibility of testing the product lies with the user.