Castrol Brayco® 300 Lubricating Oil, General Purpose, 16 Oz.

Castrol Brayco® 300 is a blend of highly refined petroleum oil with suitable additives which provide corrosion prevention, oxidation resistance, and freedom from galvanic corrosion in brass-steel bimetallic systems. The viscosity is similar to a light machine oil. Castrol Brayco® 300 is a water displacing oil for general purpose applications at low and medium temperatures (-70ºF to 300ºF).

Uses Castrol Brayco® 300 is designed for the lubrication and preservation of small arms, automatic weapons, and fuse mechanism applications, especially where a low temperature, water displacing oil is desired. It may be used to protect unpainted metal surfaces from the effects of indoor storage for periods of three to six months, after which it remains readily removable. Castrol Brayco® 300 will also protect magnesium and aluminum against corrosion at low and medium temperatures (-70ºF to 300ºF).

Material Safety Data Sheets (MSDS)

CASTROL BRAYCO® 300
TYPICAL PROPERTIES

TEST METHOD	DESCRIPTION	MIL-PRF-32033 REQUIREMENTS	RESULT
D287	API Gravity, degrees	Report	28.4
Table 3	Specific Gravity @ 16°C/16°C (60°F/60°F)	Report	0.8849
Table 8	Pounds Per Gallon @ 16°C (60°F)	Report	7.368
D1500	Color, ASTM	7.0 Maximum	4.0
D97	Pour Point, °C (°F)	-57 (-70) Maximum	-57 (-70)
D445	Viscosity, cSt     @ 40°C (104°F)     @ -40°C (-40°F)     @ -54°C (-65°F)	11 Minimum 7,000 Maximum 60,000 Maximum	11.2 4,290 53,100
D92	Flash Point, COC, °C (°F)	135 Minimum	142 (285)
D91	Precipitation Number, ml	0.05 Maximum	0.01
D972	Evaporation Loss, % wt 22 hours @ 100°C (212°F)	25 Maximum	11.2
FTM 5308	Corrosion-Oxidation Stability, 168 hours @ 121°C (250°F) Corrosion, Pitting, or Etching Wt Change, mg/cm2      Copper      Steel      Aluminum      Magnesium      Cadmium      Change in Viscosity @ 40°C (104°F), %      Change in Neutralization No.      Insoluble Materials and Gum	None 0.2 Maximum 0.2 Maximum 0.2 Maximum 0.2 Maximum 0.2 Maximum -5 to +20 0.20 Maximum None	None +0.002 +0.012 -0.009 +0.009 +0.008 +4.3 0.06 None
D130	Copper Strip Corrosion, 3 hours @ 100°C (212°F)	2a Maximum	1a
FTM 5329	Humidity Cabinet-SB Panels - 192 hours	Pass	Pass
FTM 3007	Water Displacement Water Stability	Pass Pass	Pass Pass
FTM 202	Low Temp. Stability, 72 hours @ -54°C (65°F)	Pass	Pass
FTM 5322	Corrosiveness, 10 days (240 Grit)	Pass	Pass
Spec	Film Characteristics	Pass	Pass
Spec	Removability	Pass	Pass
D4172	Four-Ball Wear-Test, AWSD, mm	1 Maximum	0.7
Spec	Workmanship	Pass	Pass

Health, safety and environmental information are provided for this product in the Materials Safety Data Sheet. This gives details of potential hazards, precautions and First Aid measures, together with environmental effects and disposal of used products. castrol will not accept liability if the product is used other than in the manner or with the precautions or for the purpose (s) specified. Before using the product other than directed, please contact Castrol for consultation.