Ransom & Randolph AURUM™ Jewelry Casting Investment

Ransom & Randolph AURUM™ Jewelry Casting Investment

Ransom & Randolph AURUM™ Jewelry Casting Investment is a professional investment material specifically developed for gold casting applications in jewelry manufacturing. Designed for use with lower-temperature casting alloys, AURUM™ delivers excellent surface quality and easy mold removal, providing significant advantages throughout the jewelry production process.

Its specialized formulation helps produce smoother metal surfaces after casting, reducing the need for additional surface finishing and polishing operations.

AURUM™ casting investment also facilitates water-based mold removal and cleaning after casting, helping improve production efficiency.

The product is also available in a version featuring BANDUST™ technology, developed to reduce exposure to respirable silica dust.

Key Features

Optimized for Gold Casting

AURUM™ is specifically formulated for gold casting applications. It is suitable for jewelry manufacturing processes involving lower-temperature casting alloys.

Smooth Casting Surfaces

Its specialized formulation helps achieve smoother casting surfaces compared to conventional investment materials. This can reduce the amount of additional surface finishing required after casting.

Easy Mold Removal and Cleaning

AURUM™ facilitates water-based mold removal after casting. Its easy-cleaning properties help simplify the removal of investment residues from cast jewelry pieces.

Reduced Surface Finishing Requirements

By supporting smoother casting surfaces, AURUM™ can help minimize grinding, surface correction, and finishing operations.

Optional BANDUST™ Technology

AURUM™ is also available with BANDUST™ technology, designed to reduce respirable silica dust during handling. This technology does not replace appropriate dust control measures or personal protective equipment.

Applications

• Jewelry and precious metal manufacturing

• Gold casting applications

• Precision investment casting

• Casting with lower-temperature metal alloys

• Jewelry casting requiring high-quality surface finishes

Technical Specifications

 

Brand	Ransom & Randolph
Product Name	AURUM™
Product Type	Jewelry Casting Investment
Application	Jewelry and Precious Metal Casting
Suitable Metals	Gold and Lower-Temperature Casting Alloys
Water-to-Powder Ratio	38:100
Working Time	11–11.5 Minutes
Recommended Water Temperature	22–24°C
Conventional Mixing Time	3 Minutes
Vacuum Mixing Time	4 Minutes
Mold Setting Time	2 Hours
Mold Removal	Easy Water-Based Knockout
Surface Quality	Smooth Casting Surfaces
BANDUST™ Technology	Available as an Optional Version
Packaging Options	22.7 kg Box / 22.7 kg Bag
Shelf Life	12 Months from Manufacturing Date
Storage Conditions	Store in a Dry Environment at Room Temperature