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ADHESIVES for METALS

Metals are primary elements, but are most often used in alloy or mixed form, and rarely as pure elements, in manufacturing. The differing chemistries lent by the mix of elements in alloys affect the metal's physical properties. The mix of properties and differences in thickness of metal substrates can affect their coefficient of expansion. Successful long term bonding of metal to itself is not too difficult as the different kinds have relatively close Coefficients of Expansion (COE)s. When substrates with differing COE's are bonded together, it is the impact of thermal cycling on the bond that often tends cause failure over time, even where the initial bond is successful. Thus, bonding metals to other substrates, such as rubber or glass or plastics, for long term deployment requires careful preparation and matching of the adhesive being used with the differing Coefficient of Expansion (COE)s of the substrates involved. BONDiTTM products are among the few available that can be used to bond metals to substrates with differing COE's for harsh environments and long term deployment without debonding.

Metals and metalloids occupy the majority of space in the periodic table of elements -- eighty-eight of the one hundred five total elements currently known. What is interesting is that until the 17th century only twelve of these eighty-eight metallic elements had been discovered. The modern manufacturer is faced with considerable complexity in attempting to adhere metal parts to other substrates and the adhesive technology available has to be flexible enough to handle that complexity.

Our first recommended product for bonding metal to metal is BONDiTTM B-536TH for very high tensile strength

Our recommendation would change if bonding metal to rubber, in which case we would recommend reading our adhesives for rubber page.

Other recommended products if bonding metal to ceramic or glass are BONDiTTM B-536TH or B-481TH.

Among the other substrates which metals can be bonded to using BONDiTTM products are:
UHMW, Delrin, fluoropolymers, copolymers, TPE / TPR, rubber, polyethylene, polyolefin, polypropylene, polyurethane, silicone, thermoplastics, thermosets, urethane, ceramics, glass, wood, other metals, stone, aggregate and concrete.

To see our chart showing elongation rankings 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 reltek@reltekllc.com.

ADHESIVES for METALS