Diphenylguanidine

Diphenylguanidine (CAS 102-06-7), abbreviated DPG and sold as Vulkazit, is a secondary accelerator for rubber vulcanization.

Where is Diphenylguanidine used?

• Tire manufacturing: co-accelerator with thiazoles and sulfenamides, raising crosslink density and cutting cure time in natural and synthetic rubber
• Industrial rubber goods: belts, hoses and seals needing consistent cure rates and mechanical performance
• Leather processing: retanning auxiliary and pH modifier affecting dye uptake and softness
• Printing ink and textile resin systems: curing agent for controlled crosslinking
• It activates primary accelerators and improves cure efficiency in rubber compounds.

Commercial specifications

• Standard commercial grades for rubber industry use; specifications cover purity
• Specifications typically cover melting point range and ash content