is a thermoplastic, that is, it is one of a variety of materials
that have the property of becoming hard and rigid
when cooled and are moldable when heated. Polyolefins soften
or fuse when heated and harden and become rigid again when
cooled without undergoing any appreciable chemical change. Polyolefin
comes in many different chemical formulae (due to additives)
with differing chemical and mechanical properties, including
adhesion, and varying thicknesses -- both of which affect
its coefficient of expansion. Successful long term bonding
of polyolefin to itself and to other substrates, requires
careful preparation and matching of the adhesive being used
with the differing COEs of the substrates involved. BONDiTTM products
are among the few available that can be used to bond polyolefin
to substrates with other COE's for harsh environments and
long term deployment without debonding.
highest recommended product for bonding polyolefin is BONDiTTM B-45TH
or B-482TH or B-4682 depending upon the relative need for
chemical resistance, bond strength, impact and vibration
resistance, heat resistance, and COE differential.
Our recommendation would change if a fast cure is needed, in which case we
recommend the use of BONDITTM B-536TH.
Other recommended products are hot melts BONDiTTM HM-502
or HM-505 with adhesion promoter, BONDiTTM A-43.
Among the other substrates to which polyolefins can be bonded using BONDiTTM products
are: UHMW, Delrin, fluoropolymers, rubber, polyethylene, polyolefins,
polypropylene, polyurethane, silicone, thermoplastics, thermoset, urethane,
ceramics, glass, fiberglass, wood, metals, stone, aggregate and concrete.
To see our chart showing rankings by chemical property, including elongation,
of the various BONDiTTM products click here.
Call or email us for advice on for COE ratings and matching BONDiTTM products
for your application at (707) 284-8808 or firstname.lastname@example.org.