Butyl Rubber Adhesive Formulation

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

Butyl rubber adhesive formulation.

Starting point rubber compounding formulations. In stock and ready to ship. Many formulations contain butyl rubber as the only 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. A caulk formulation is shown above. Noncuring butyl sealants with no solvent have long life if used between building panels and in sound deadening applications. Automotive buildings constructions assembly transportation excl.

They do not harden or oxidize and are not affected by weather. Its properties do not change over time. Lack of unsaturation gives butyl rubber adhesives their characteristic oxidation uv and ozone resistance. Astm c1085 is a standard specification for a butyl rubber based solvent release sealant with a maximum of 10 joint movement capability.

The cohesive strength of butyl adhesives can be improved by the incorporation of high molecular weight pib. Epoxies ep applicable industrial sectors. 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 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.

The modification also provides a degree of age resistance for long term service. Because of its unique properties it also is used in the automotive and food processing industries among others. Formulation as with other hot melt adhesives butyl rubber based adhesives incorporate polymers a tackification system a diluent and usually a filler. 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.

Adhesives formulation applicable type. Unlike other types of sealant butyl sealant sealant does not cure i e. Butyl rubber sometimes just called butyl is a synthetic rubber a copolymer of isobutylene with isoprene the abbreviation iir stands for isobutylene isoprene rubber. The formulation above is for a hot melt applied pib modified butyl psa.

These have a service life of 5 15 years depending on the application. Butyl rubber is produced by polymerization of about 98 of. Natural based adhesives reactive adhesives applicable base polymer. Choose from our selection of butyl rubber adhesives in a wide range of styles and sizes.

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