Metal To Plastic Bonding

Before attempting to glue metal to plastic it s important to know what types of adhesives can accomplish the task.

Metal to plastic bonding. There are metal adhesives that bond some plastics and plastic adhesives that bond some metals. The specific substrates as well as the surface condition of the substrates the types of stresses on the bond and the environment the bond must withstand help in selecting the best adhesive. Cyanoacrylate glue more commonly known as super glue is the easiest option when dealing with metal and plastics. Permabond ta4246 with initiator 46 is a no mix adhesive and initiator.

Apply the initiator to the metal and the adhesive to the plastic. Plastic that you pretty much cannot glue. For selection purposes. Ideally the coefficient of thermal expansion for the adhesive itself would be negligible.

Here are my two favorites. There are several types of structural acrylic adhesives and not all bond metal to plastic. Plastics that you generally can glue. 35 n mm 5100 psi.

See the high bond strengths attainable below. Not all adhesives are alike wood glue and school glue for instance are designed for porous materials and would not work well on either metal or plastic. Substrates and surface condition. Hard plastics like acrylic abs polystyrene vinyl pvc.

Metals and plastics have different coefficients of thermal expansion so the best glue for plastic to metal bonding will accommodate this difference. Flexible waxy polyethylene and polypropylene such as hdpe pete most buckets cups food or soda or cleaner bottles.