Materials - Applies to non-porous metals Carbon Raptor does not apply to porous metals such as brass, cast iron, sintered materials, and similar metals. For other materials, call.

Surface finish - Carbon Raptor provides maximum benefits on smooth surfaces. A finish of 6 microinch or better is desired. Some parts to which Carbon Raptor is applied, such as wrist pins, are 0.02 to 0.05 microinch. Unlike Plasma Vapor Deposition (PVD) processes that require a rough surface for a film to mechanically bond, Carbon Raptor is a Plasma Assisted Chemical Vapor Deposition (PACVD) process that bonds chemically and mechanically. Chemical bonds are about 9 times stronger than mechanical bonds. Performance is application dependent, and generally, the smoother the surface, the better Carbon Raptor adheres and performs.

Surface Condition - On a production basis, components to be coated need to be new and unused. For initial trials, if used, Carbon Raptor can be applied if contaminants are removed through a bead blasting or other similar process. Grinding and polishing after may be required. Residues from any heat treating process must be removed from the surface. Oxidation (rust) blocks Carbon Raptor from coating to the surface, even microscopic size oxidation. Residuals from polishing processes should be removed prior to coating. Casidiam is not applied to coated surfaces, although exceptions apply. Call for coating over other coatings.

Other Surface Effects - Residual magnetism should be removed. Heat treating effects that impart high quantities of other elements to the surface of metals may block the coating process. Call if your components have these effects.

Surfaces To Coat - Components must be fixtured in the processing unit during coating. Surface(s) in the plane or side to be fixtured will not be coated. Three types of surfaces should be specified:

Edge Effects - Carbon Raptor will coat over sharp edges, such as 90 degree breaks. To avoid coating on surfaces adjacent to coated ones may require masking.