Butyl Rubber Adhesive Formulation

Butyl rubber is an elastomeric polymer that is used in a wide variety of construction sealants.

Butyl rubber adhesive formulation.

Epoxies ep applicable industrial sectors. Noncuring butyl sealants with no solvent have long life if used between building panels and in sound deadening applications. Polyisobutylene also known as pib or polyisobutene c 4 h 8 n is the homopolymer of isobutylene or 2 methyl 1 propene on which butyl rubber is based. Starting point rubber compounding formulations.

Its properties do not change over time. Because of its unique properties it also is used in the automotive and food processing industries among others. Choose from our selection of butyl rubber adhesives in a wide range of styles and sizes. The cohesive strength of butyl adhesives can be improved by the incorporation of high molecular weight pib.

Butyl sealants are elastomer based polyisobutene plastic sealants sometimes called butyl rubber used for sealing applications due to their excellent resistance to uv moisture and ageing. They do not harden or oxidize and are not affected by weather. The modification also provides a degree of age resistance for long term service. Since the formulation of butyl sealant means that it is already a plastic the term.

A typical butyl rubber caulking compound has the following composition shown in above. Natural based adhesives reactive adhesives applicable base polymer. Butyl rubber sealants can be formulated as well as caulks and extruded tapes. These are starting point rubber compounding formulations for providing guide lines only and should be confirmed.

Formulation as with other hot melt adhesives butyl rubber based adhesives incorporate polymers a tackification system a diluent and usually a filler. These have a service life of 5 15 years depending on the application. Applicable base polymer properties. Lack of unsaturation gives butyl rubber adhesives their characteristic oxidation uv and ozone resistance.

Unlike other types of sealant butyl sealant sealant does not cure i e. Automotive buildings constructions assembly transportation excl. Adhesives formulation applicable type. It is commonly used for tapes and labels.

Butyl rubber is produced by polymerization of about 98 of. In stock and ready to ship. A caulk formulation is shown above. The formulation above is for a hot melt applied pib modified butyl psa.

Many formulations contain butyl rubber as the only polymer.