KURARAY LIR-390

KURARAY LIR-390 by Kuraray is a liquid rubber based on isoprene block copolymer. It is a high-viscosity synthetic rubber grade. It can function as a reactive plasticizer but have a far higher molecular weight than normal plasticizers. It is co-vulcanizable with solid rubber such as NR, SBR, BR, IR and IIR. During the rubber compounding phase, it significantly reduces processing time while maintaining the rubber compounds’ physical properties. It results in a product with lower processing costs. It is colorless, transparent and odorless with low VOC. Its low glass transition temperature (Tg) improves low-temperature properties. KURARAY LIR-390 is used in marine coatings.