Polyisoprene

Polyisoprene (CAS 9003-31-0) is a synthetic or natural-derived polymer that replicates the structure of natural rubber, offering high elasticity and resilience.

Where is Polyisoprene used?

• Rubber compounding, adhesives and polymer blending: controlled elastic performance
• Tire manufacturing: compounded into tread and sidewall formulations for tensile strength and flex fatigue resistance
• Medical and industrial gloves: latex-free alternative to natural rubber for healthcare and cleanroom environments
• Adhesive formulators incorporate it into pressure-sensitive and hot-melt systems to control tack, peel strength and rheological profile
• In polymer blending it functions as a softening and rheology-modifying component.

Good to know: Standard grades include technical rubber grades differentiated by Mooney viscosity, as well as pharmaceutical-grade synthetic polyisoprene meeting USP and ISO specifications for medical devices.

Commercial specifications

• Concentrated latex or dry bales for natural-derived material