TYPES OF SEALANT

ROCKHARD 961-450-002

ROCKHARD 576-450-002
normally used on finished machined parts which allow coating tolerances of .0005 to .001 on machined surfaces

PHYSICAL PROPERTIES
Color = Dark Chocolate Brown
extremely chemical resistant
very hard and erosion resistant
Resistant to humidity or Trichloroethylene
Holds up through re-chromating
Provides protection to metals from attack by salt and other corrosive environments. When used in conjunction with thin film anodic coatings, it can yield up to 3000+ hours salt spray. (ASTM B117)

TYPICAL APPLICATIONS
Air intakes, Turbine blades
Computer chassis, Engine blocks
Heat exchangers and Radiators
Aircraft components, Gearboxes, Pumps,
Starter covers, Oil tank covers

SURFACE QUALITY
Texture of coating is smooth and furnishes excellent intercoat adhesion with paints and other sealants

CURRENT APROVALS/SPECIFICATIONS
Sikorsky Aircraft - SS8688
Honeywell-AlliedSignal - FP5109
Hamilton Sundstrand - HS 4675 Type 5
Hamilton Sundstrand San Diego ESR 1187
McDonnell Douglas(Boeing) HP 4-133
CPW 489
Pratt & Whitney Aircraft PWA 36490
General Electric Aircraft Engines P6D2
Nichols Aircraft Parker Hannifin MCS-145
Williams International CP4240

COATING THICKNESS
Normally dimensional increase is in the range of:
Machine surfaces = .0005 to .001 (0.5 to 1.0 mil)
Cast surfaces = .0005 to .003 (0.5 to 3.0 mils)