Greensand Casting

Intro

There are 2 main casting methods, each about 40% of all casting processes: greensand and no-bake molding. No-bake uses binders that set.

Technique

• Comprehensive diagram of all casting types - [1]. MIG Casting is not included. Binders can be clay, chemically setting binders, and polymerized oils (motor oil)
• Nobake (airset or precision sand) casting - use a binder with sand. [2]
• Types of binders - [3]

Greensand Sources

• Petrobond - good for novices - [4]
• Ebay - 5 lb - $20 - [5]

Casting Companies

• Commercial airset sand casting - [6]

Greensand Formulas

• One here, includes oil and bentonite - [7]

DIY

• From Backyardmetalcasting - [8]
• Sand + bentonite, mulled - [9]