Why Coatings Are Used

PTI applies over three hundred different coatings by the various techniques described.

There are probably thousands of reasons to apply a coating on  specific applications, most of these can be reasonably grouped as follows:

• Surface Engineering allows a base material to be chosen for a particular set of attributes (weight, cost, corrosion resistance, thermal capability) while the surface has a different set of properties (hardness, electrical resistance or conductivity, mating characteristics, thermal transfer or shielding).

• Surface Engineering allows a duplex set of properties unattainable by other techniques.

• Coatings enable significant cost savings when compared with solid materials of like composition.

• Coatings can be tailored to application specific requirements quite readily and usually at low cost.