The Hill and Griffith Company
1085 Summer Street - Cincinnati, OH 45204
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Cobra™ 521 Release Agent

Green Sand Metalcasting Foundry ImageRelease Agent for Green Sand Metalcasting Foundry

COBRA™ 521 is a ready to use non-flammable release agent that can be used in a wide variety of core making operations. Manufactured with high quality ingredients, COBRA™ 521 provides excellent lubrication and release with minimal build up on the tooling. Practical areas of use include all cold box processes and no bake chemical processes.

Features

  • Wide Variety of Applications
  • No Montreal Protocol Regulations
  • Excellent Release
  • Zero Volatile Organic Compounds
  • Cost Effective

Typical Product Data

(These values are not intended for use in preparing specifications)

Flash Point (C.O.C.)  Greater than 200°F
Viscosity  Approximately 100 CPS @ 68°F
Freeze Point  Will not freeze
Density (lbs./gal.) 7.9

Use Recommendations

COBRA™ 521 has seen usage and success in the areas of core & mold making using chemical resin systems. The release will be affected by usage rates and intricacy of the core produced. Generally, the release agent can be applied using conventional spraying equipment such as an airless sprayer, a pressurized canister type sprayer or a molders siphon sprayer. In the latter instance it may be necessary to reduce the airflow in the inlet orifice of the container.

Since COBRA™ 521 is a non-flammable organic material, proper care should be taken when handling and applying this product.

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