Metal Substrate

METAL COATINGS 

Used to improve the functional properties of a substrate on its surface. Conventional coatings adhere to materials by simple   mechanical forces will be easily broken causing peeling  or delamination. This is not the case with chemical grafting  since the attachment of the coating is accomplished by forming  a covalent bond between the substrate and the monomers via  the substrate activator.

 

 

The chemical reaction that takes place  provides subsurface penetration in addition to the chemical  bond. As a result, much thinner treatment can be obtained while  providing longer life and superior performance of the material. Typical treatment methods can be used such as dip, spray, roll. The  chemical grafting formulation comes in contact with the surface  of the substrate by any of these methods, The chemical  grafting reaction occurs instantaneously upon contact with the  material. The desired thickness and preferred application  method will determine the viscosity of the formulation. Most  formulations are water based. The coatings can be air dried,  however, heat (oven, IR, UV, etc.) may be used to accelerate  the drying time. Most formulations will dry in seconds to  minutes. 

Metals 

steels, aluminum, brass, bronze, copper, zinc, nickel, Corrosion resistance, abrasion/wear resistance, impact resistance,  lubricity, conductivity, temperature resistance, color, and others. 

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Painting, anodizing or plating metals are obsolete, utilizing harsh and unsafe chemicals  to prevent  their corrosion. However, a more reactive metal in the  electro-chemical series must be chosen for coating,  especially  when chipping of the coating is expected. Water and the two  metals form an electrochemical cell, and if the coating is less  reactive than the coatee, the coating actually promotes  corrosion.    

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