Most challenging areas
•  Ring Grooves
•  Pistons Skirts

Pistons Compression Ring Grooves
•  Operation at high temperature
•  Reduced emissions due to reduced crevice volume
•  High temperature results in microwelding

Solutions for microwelding
•  Anodized ring grooves
•  Composite polymer coated piston ring surfaces

Pistons Skirts
•  Efforts to reduce NVH results in tighter piston/cylinder bore
    clearances
    •  Requires improved frictional properties piston/cylinder bore

Current Solutions
•  Composite polymer coated piston skirts

NCC pistons offers single solution
•  Microwelding
    •  Tolerance of high temperature for piston compression ring groove
    •  NCC applied specifically on some 2 stroke motorcycle ring grooves
       for microwelding
•  Tight fit piston/cylinder bore
    •  Yielded low wear
    •  Low scuffing
    •  Low friction loss
    •  Measurable power increases
•  Carbon deposition
    •  NCC on dome resistance to carbon deposition due to Nickel
        content
    •  Reduction in emissions
    •  Reduction in sensitivity to knock
    •  Reduced sensitivity to car jacking

Applications on Cylinder Bores                   Applications on Pistons