Baymod N VP KA 8677 Acrylonitrile-butadiene rubber 9003-18-3 Bayer Plasticizers PU - Prepolymers Ethylene co-terpolymers - solid (EVA, EMA...) Polyvinyl Chloride (PVC) SEALANT Baymod â N VP KA 8677 (Trial Product KA 8677) is an NBR polymeric plasticiser. Baymod N VP KA 8677 is a cold polymerised and precrosslinked acrylonitrile-butadiene copolymer. It is ground to its powdered form and is particularly suitable for modifying flexible and semi-rigid PVC but can also be used as a modifier for other polar polymers. Baymod N VP KA 8677 exhibits excellent resistance to oil, fuel, hydrolysis and chemicals. Polymers modified Baymod N VP KA 8677 are permanently plasticised and exhibit good low temperature flexibility and excellent fatigue and abrasion resistance. The 'performance in use' at higher temperatures and in contact with oil or fuel is improved by Baymod N VP KA 8677. acrylonitrile-butadiene rubber (NBR) with precipitated silica as dusting agent excellent oil and fuel resistance very good flexibility after heat ageing excellent resistance of the NBR to migration permanent plastification very good abrasion resistance very good fatigue resistance improved compression set Baymod N VP KA 8640 is used particularly for modifying flexible and semi-rigid PVC. Nevertheless, it is also compatible with other polar polymers such as EVA and PUR. Extrusion Seals Injection molding seals Cold polymerised and precrosslinked acrylonitrile-butadiene copolymer. Used as a plasticizer in extrusion and injection molding seals. Contains precipitated silica as dusting agent. Offers very good resistance to oil, fuel, hydrolysis, fatigue, abrasion and chemicals, good low temperature flexibility, permanent plastification and improved compression set. Possesses compatibility with flexible and semi-rigid PVC and with other polar polymers such as EVA and PUR.