<img alt="" src="https://secure.hims1nice.com/150891.png" style="display:none;">

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.

Open Printable Document (Word .doc) Here

Green Sand Foundry News

The Hill and Griffith Company Welcomes Executive-Level Director of Sales

The Hill and Griffith Company Welcomes Executive-Level Director of Sales

The Hill and Griffith Company is proud to announce and welcome Ryan Canfield as the company’s Director of Sales & Business Development. Ryan will be...
Read More

Outstanding Green Sand Metal Casting Achievement Award for Opener Frame

Outstanding Green Sand Metal Casting Achievement Award for Opener Frame

Lethbridge Iron Works (Lethbridge, Alberta, Canada) won the award Material: Ductile iron ASTM A536 65-45-12. Process: Horizontal green sand. Weight: 68 lbs....
Read More

Improving Parting Compound Odor and Reducing Flammability

Improving Parting Compound Odor and Reducing Flammability

A patented water-based liquid parting which provides improved odor characteristics and reduced flammability. The Hill and Griffith Company has developed and...
Read More

Green Sand Foundry News

The Hill and Griffith Company Welcomes Executive-Level Director of Sales

The Hill and Griffith Company Welcomes Executive-Level Director of Sales

The Hill and Griffith Company is proud to announce and welcome Ryan Canfield as the company’s Director of Sales & Business Development. Ryan will be...
Read More

Request SDS

Safety Data Sheets for Metal Casting Supplies, Die Casting Supplies, Metalworking Supplies, Concrete Casting Supplies

Show Schedule

Metalcasting Congress 2020

AFS Metalcasting Congress
April 21-23, 2020
Cleveland, OH
Booth # TBA

More Information »

Aquapart Parting Compound for Green Sand Metalcasting

Aquapart® II - Water Based Parting Agent

Use Less Seacoal and Still Get Super Clean Castings
Read More »

Bulletins and Technical Papers for Metal Casting Products

Technical Articles

Our Sister Companies

HG Logistics LLC

New logistics services from Hill and Griffith

HG Logistics LLC provides logistics management services for the U.S., Canada and Mexico.
Read More »

Griflube Hydraulic Fluids

Griflube Hydraulic Fluids

Environmentally Clean, High Pressure, High Temperature.
Read More»

Murphy Air Sprayers for casting applications

New Murphy Sprayer for coating and washing

Rugged design assures dependable coverage and maximum efficiency.
Read More »

Posts by Tag