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Home » Applications » Sealants & Caulks
KVIS polybutenes are most widely used in sealants and putty formulations as an effective replacement for the drying oils.

The polybutene can impart the following properties to the sealants
» Permanence
» Improved adhesion and cohesion and
» Ageing
» Less shrinkage
» Lower oil-to-filler ratios.

KVIS polybutenes act as a plasticizer and it add tack to elastomer-based sealants.

Addition of polybutene results in a softer sealant. Such sealants can be easily extruded and can be applied from an application gun without using large proportions of solvents. The reduced usage of solvents facilitates environmental benefits. The product shrinkage after application will be minimized due to the reduced usage of solvents.

Polybutenes can be formulated along with butyl rubber for being used in sealants for double glazed window systems, and other applications where low moisture vapour transmission is important. This type of sealant is more suitable for use as both primary and secondary sealants in the window-glazing unit.

In Silicone based high performance sealants, KVIS can be employed as a partial replacement/extender for silicone oil. The addition of KVIS polybutenes can result in cost savings without compromise on the properties of the sealant.

When polybutene is added to Clear Sealants it imparts outstanding peel adhesion and good ageing characteristics.



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