Metalcasting Additive for Green Sand Metalcasting Foundry
Hill and Griffith KLEAN KAST™ 2000* is an organic dispersion used in Premix formulations in conjunction with Seacoal. This combination provides a complimentary reaction to achieve greater effectiveness than those additives used by themselves. The volatiles in KLEAN KAST™ 2000* release lustrous carbon upon contact with molten metal to assure superior casting quality.
- 1 pound KLEAN KAST™ 2000* replaces 2 pounds of Seacoal
- Cleaner foundry atmosphere
- Increases sand compaction and mold density
- Faster clay dispersion in mulling cycle
- Lower ash buildup in recycling sand systems
- Lowers temper water requirements of the sand
- Micronized particles of KLEAN KAST™ 2000* diffuse rapidly into sand system
- Increases Flowability
- More Accurate casting dimensions
- Low Level of Benzene Decomposition By-Product
- Less smoke at pouring and shakeout
- Compatible with all Premix formulations
- Smooth, silky feel to system sand
- Improves clay efficiency
INTRODUCING KLEAN KAST™ 2000* IN SAND SYSTEMS
The following procedure is recommended when converting a sand system to KLEAN KAST™ 2000*.
Prior to introduction of KLEAN KAST™ 2000*, retain several castings, typical of quality and finish for future reference. Determine the average range of the following properties.
- % Compactibility
- % Moisture
- Total Combustible Content
- % Volatile Matter Content
- Green Compression Strength
- Dry Compression Strength
- Specimen Weight
- Methylene Blue Clay
- AFS Clay Content
CHARACTERISTICS OF SAND SYSTEM AFTER INTRODUCTION
- Green Strength will increase, providing a correct clay-water ratio is maintained because KLEAN KAST™ 2000* preactivates the clays in Premix.
- Combustible level may be substantially reduced.
- The correct level of clays should be maintained either by Methylene Blue or Available Bond Tests.
- Dry Compression Strength will increase unless moisture is maintained within established compactibility limits.
- Hardness and weight of a standard 2" A. F. S. specimen will increase due to increased flowability.
- As Seacoal and other combustibles are reduced by dilution, moisture requirements will be reduced. This occurs due to a reduction of the total surface area.
*Patent Number 5,587,008