What is the typical chemical composition and polymer content of K1-60 rubberised bitumen emulsion?

Exact composition varies by supplier because K1-60 is often a commercial grade label, but rubberised emulsions generally contain paving or modified bitumen dispersed in water, an emulsifier package, pH control agents, stabilizers, and a rubber or latex modifier. Rubber or polymer content can range from low single digits up to higher levels depending on the target elasticity and crack resistance, but the “rubberised” claim must be verified by residue testing, elastic recovery, and performance data. Procurement best practice is to request a formulation declaration range, residue polymer or rubber percentage by mass, and COA values tied to an applicable standard.