Butyl Rubber Adhesive Formulation

A typical butyl rubber caulking compound has the following composition shown in above.

Butyl rubber adhesive formulation. 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. Lack of unsaturation gives butyl rubber adhesives their characteristic oxidation uv and ozone resistance. Applicable base polymer properties. Because of its unique properties it also is used in the automotive and food processing industries among others.

These have a service life of 5 15 years depending on the application. The formulation above is for a hot melt applied pib modified butyl psa. Many formulations contain butyl rubber as the only polymer. Epoxies ep applicable industrial sectors.

Butyl rubber sealants can be formulated as well as caulks and extruded tapes. Starting point rubber compounding formulations. In stock and ready to ship. Its properties do not change over time.

Butyl rubber is produced by polymerization of about 98 of. Since the formulation of butyl sealant means that it is already a plastic the term. Butyl rubber is an elastomeric polymer that is used in a wide variety of construction sealants. A caulk formulation is shown above.

Formulation as with other hot melt adhesives butyl rubber based adhesives incorporate polymers a tackification system a diluent and usually a filler. Choose from our selection of butyl rubber adhesives in a wide range of styles and sizes. 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. Butyl rubber sometimes just called butyl is a synthetic rubber a copolymer of isobutylene with isoprene the abbreviation iir stands for isobutylene isoprene rubber.

It is commonly used for tapes and labels. The cohesive strength of butyl adhesives can be improved by the incorporation of high molecular weight pib. Butyl 301 100 nr rss 1 100 100 100 bromo butyl 50 peptizer 0 1 0 1 0 1 nr rss 1 50 zinc oxide 5 0 5 0 5 0. Adhesives formulation applicable type.

Natural based adhesives reactive adhesives applicable base polymer. These are starting point rubber compounding formulations for providing guide lines only and should be confirmed. Noncuring butyl sealants with no solvent have long life if used between building panels and in sound deadening applications. They do not harden or oxidize and are not affected by weather.

Automotive buildings constructions assembly transportation excl.