Viton™ VC-3 is a blocked diamine cross-linking agent used to cure A, B, and E types of Viton™ fluoroelastomers.
Chemours Viton™ VC-3, previously known as Diak-3, is a blocked diamine cross-linker used to improve the processing safety of A, B, and E types of fluoroelastomers. Viton™ VC-3 has a plasticizing effect on vulcanizates. The typical usage level for Viton™ VC-1 is 1 to 1.5 phr.
The main difference between the Viton™ VC process agents in processing safety. Products cured with Viton™ VC-3 provide excellent processing safety and exhibit some plasticizing effect, while Viton™ VC-1 offers the best compression set and physical properties. In addition, cures for Viton™ A, B, and E types of fluoroelastomers are produced with roughly 3 phr of Viton™ VC-3.
Physical form: Coarse powder
Appearance: Tan
Odor: Cinnamon
CAS number: 140-73-8
Specific gravity: 1.09 ± 0.02
Melting point: 80 °C (176 °F) min.
Ash: 0.5% max
Moisture: 0.5% max
Solubility: Slightly soluble in water, soluble in non-polar solvents
Primary Chemistry: N,N’-dicinnamylidene-1,6 hexanediamine
Excellent processing safety
Fast cure for fluoroelastomer compounds
Improved crosslinking properties for FKM polymers
Curing difficulties of A, B, and E types of Viton™ fluoroelastomers and FKM polymers
Slow cure and low compression set with traditional amine curing agents
Improve processing of A,B and E type fluoroelastomer compounds
Improve physical properties
Excellent crosslinking agent for FKM polymers
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