Polyolefin 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.

Our highest recommended product for bonding polyolefin is BONDiT^TM 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 BONDIT^TM B-536TH.

Other recommended products are hot melts BONDiT^TM HM-502 or HM-505 with adhesion promoter, BONDiT^TM A-43.

Among the other substrates to which polyolefins can be bonded using BONDiT^TM 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 BONDiT^TM products click here. Call or email us for advice on for COE ratings and matching BONDiT^TM products for your application at (707) 284-8808 or reltek@reltekllc.com.