Castrol Braycote 248 Corrosion Preventive Compound, Preservation Grease, 1 Lb

Castrol Braycote 248 is an amber colored, soft, transparent, grease-like film that acts as a corrosion preventive compound-Petrolatum. It will not polymerize or harden after long exposure to the sun. Castrol Braycote 248 is designed to protect machined, unpainted metal surfaces from the effects of indoor or shed exposure for periods of six months or more. It is especially suitable for the preservation of anti-friction bearings in storage or shipment.

APPLICATIONS
Braycote 248 may be applied by dipping at temperatures from 160°F to 180°F (71°C to 82°C). It may be brushed or swabbed on at room temperature when its consistency resembles a soft grease, or at elevated temperatures when it resembles an oil. Hot spray applications can be used for protecting large pieces of equipment that are too large in size for dipping applications. Optimal performance can be achieved only when the metal surfaces to be protected are clean, dry and free of rust, oil and mill scale. Braycote 248 may be removed by solvent or steam cleaning.

TECHNICAL INFORMATION
Braycote 248 meets the requirements of specification and is qualified to MIL-C-11796C, Class 3. This product is identified by NATO Code: C-627

TYPICAL CHARACTERISTICS

• Unworked Penetration (ASTM D937 / DIN 51580): 217 (0.1 mm) (Spec Range: 200 - 250)
• Drop Melting Point (ISO 6244 / ASTM D217): 71 / 160 (°C/°F) (Spec Min: 57 / 135)
• Flash Point - Open Cup Method (ISO 2595 / ASTM D92): 262 / 505 (°C/°F) (Spec Min: 177 / 350)
• Sulphated Ash Content (ISO 3987 / ASTM D874): 0.19 % wt (Spec Max: 0.15 / 0.05)
• Stability (MIL-C-11796C Spec 4.6.2): Pass (No Separation or Foam)
• Volatility (MIL-C-11796C Spec 4.6.3): 0.36 % (Spec Max: 1.0)
• Miscibility with Grade 100 MIL-L-6082 Oil (MIL-C-11796C Spec 4.6.5): Pass (No Separation)
• Abrasives (MIL-C-11796C Spec 4.6.6): Pass (Spec Max: 0.05 ml)
• Applicability - Thickness of Coating (MIL-C-11796C Spec 4.6.8.1): Pass (1.50 +/- 0.2)
• Humidity Cabinet - 30 Days Min. (MIL-C-11796C Spec 4.6.8.1): Pass
Corrosiveness (MIL-C-11796C Spec 4.6.8.3):
• Aluminium: 0.019 mg/cm² (Spec Max: +/- 0.2)
• Brass: 0.039 mg/cm² (Spec Max: +/- 0.2)
• Cadmium: 0.0042 mg/cm² (Spec Max: +/- 0.2)
• Steel: 0.049 mg/cm² (Spec Max: +/- 0.2)
• Magnesium: 0.08 mg/cm² (Spec Max: +/- 0.5)
• Zinc: 0.0038 mg/cm² (Spec Max: +/- 0.2)
• Lead: 0.036 mg/cm² (Spec Max: +/- 1.0)
Stain Test (MIL-C-11796C Spec 4.6.8.4):
• Original Material: Pass
• 5% Emulsion: Pass
• 15% Emulsion: Pass
• Low Temperature Adhesion (MIL-C-11796C Spec 4.6.9): Pass
• Flow Point (MIL-C-11796C Spec 4.6.10): Pass (54 / 130 °C/°F Min.)