
Royce provides a full line of multifunctional epoxy resins and aromatic curing agents for high performance epoxy systems under its ReOxy brand.
Applications
- Aerospace and industrial prepregs and fiber reinforced composites
- Structural adhesives and high-performance coatings
- Printed circuit boards, electrical molding, and casting compounds
- Used in G-11 and FR-5 specification laminates
Features & Benefits
- Combination of high-performance mechanical, electrical, and thermal properties
- Excellent high temperature properties with thermal stability
- Outstanding mechanical and electrical properties
- Excellent heat and chemical resistance
- Can formulate to achieve Tg of 175°C to 260°C and HDT of 230°C to 240°C
Aromatic Amine Curing Agents

ReOxy CR 544® and CR 545®
CR 544® is 4,4’-diamino diphenyl sulfone (DDS) and CR 545® is a micronized version.

ReOxy CR 534® and CR 533®
CR 534® is 3,3’-diamino diphenyl sulfone (DDS) and CR 533® is a micronized version.

- 4,4’-DDS provides a higher Tg than 3,3’-DDS.
- 3,3’-DDS provides a higher tensile and flexural modulus than 4,4’-DDS.
- 3,3’-DDS is less reactive than 4,4’-DDS for improved pot life and shelf stability.
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.
Multifunctional Epoxy Resins

ReOxy ER 721®
ReOxy ER 721® is a tetra-glycidyl methylene di-aniline (TGMDA) epoxy with a functionality of 4.


ReOxy ER 722®
ReOxy ER 722® is a tetra-glycidyl methylene ethyl aniline (TGMBOEA) epoxy resin with a functionality of 4. Lower viscosity than ER 721 for better processability and stability.


ReOxy ER 742®
ReOxy ER 742® is a tri-glycidyl tris-hydroxyl phenyl methane epoxy with a functionality of 3.


ReOxy ER 7510®
ReOxy ER 7510® is a low viscosity distilled tri-glycidyl p-aminophenol (TGPAP) epoxy resin with a functionality of 3.

ReOxy ER 7610®
ReOxy ER 7610® is a low viscosity distilled tri-glycidyl m-aminophenol (TGMAP) epoxy resin with a functionality of 3.
