Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
Isobutene polymer (Vistanex LM-MH, ExxonMobil)
A
Talc (Mistron Vapor, Imerys)
Typical Properties
Excellent ageing and adhesive properties
Resulting Properties
PIB resins are used in sealant formulations generally because of their resistance to aging and to attack by chemicals. Because of their good aging characteristics, moisture resistance, and low out-gassing tendency, polyisobutene hot melt sealants are used in building and construction applications. The formulation above is for a high quality, knife-grade PIB sealant.
(Source: Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, p. 432.)