medium molecular weight polyisobutylene applied for industry, such as adhesives, sealants, lubricants and so on. PropertiesMid MW PIB is a kind of transparent, innoxious semi-solid. It is a colorless to light yellow, it is odorless or has a slight, characteristic odor, and tasteless. It is stable with oxygen, ozone, acid, alkali, ultraviolet radiation, etc. Doesnt dissolve in water, but dissolves ...