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840 Core Oil

Green Sand Metalcasting Foundry ImageSolventless Binder for Green Sand Metalcasting Foundry

840 CORE OIL is conventional core oil formulated with alkyd oils, petroleum resins and drying agents and is used in operations that require high strength with the least amount of baking time. Because 840 CORE OIL is a solventless binder, the consistency of the cores produced is very high. Jobs that require strict specifications benefit from the use of 840 CORE OIL, smoke reduction during baking may be realized.

Typical Product Data*

Appearance: Dark Brown Liquid
Density (Lbs./Gal.): 7.9
Viscosity: 1500 cps. at 68°F
Flash Point (C.O.C.): Greater than 300° F

*These values are not intended for use in preparing specifications.

Baking Strengths Sand Mix (Based on 720 Sand)
Oil 1%
Cereal 1%       Baking Temperature 450° F
Water 2%

Time (Minutes)  Tensile (P.S.I.)
20 20
40 100
60 200
90 275
120 275

Use Recommendations

840 CORE OIL can be used with any type of mixer as long as the mixing efficiency is high

enough to allow proper dispersion of the oil. Specific sand mixes are not recommended here due to the variety of applications for this product.

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