QC Lubricants
7360 Milnor St Philadelphia, PA 19136
(215) 333-4187 Direct Line

Toll Free
With Extension: (800) 887-2436
For Technical Assistance: Dial Extension 203 for Stan Jakubowski
For Sales Assistance: Dial Extension 211 for Lu Ann Quinn or 224 for Lindsay Romero


We actively supply a comprehensive line of MIL-SPEC and commercial lubricants.

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Brayco 300

Lubricating Oil, General Purpose, Preservative Water Displacing Low Temperature

Braycote 300 is available in quarts.

Braycote 236


Brayco 300 meets the requirements of and is qualified to MIL-PRF-32033. This product is identified by NATO Code Number O-190.

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. Brayco 300 is a water displacing oil for general purpose applications at low and medium temperatures (-70F to 300F).

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. Brayco 300 will also protect magnesium and aluminum against corrosion at low and medium temperatures (-70F to 300F).

Brayco 300 may be applied by brush, dip, swab, spray, or squirt can. Depending on the method of application and
surface geometries, Brayco 300 will cover 1,000 to 3,000 square feet per gallon. For water displacement, it may
be applied by these same methods. Displaced water should be removed from dip tanks at suitable intervals.

BRAYCOTE 300 Typical Properties:

Brayco 300

Shelf Life
Brayco 300 has a maximum recommended shelf life of 6 years from date of manufacture. This shelf life assumes that the product is stored in its original unopened packaging in ambient temperature conditions.

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.

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