Castaldo LiquaCast Long-Life Jewelry Molding Rubber-1 Kilo Kit

LiquaCast® Long-Life is Castaldo’s yellow, 0% shrinkage RTV liquid molding rubber engineered for extended mold life, added strength, added tear resistance, and a firmer feel. The firmer durometer helps maintain delicate detail during wax injection—ideal for thin filigree, fine channels, difficult undercuts, spirals, and CAD-CAM resin or wax patterns.

Key Features

• 0% shrinkage for dimensional consistency of patterns and castings.
• Firmer, tougher rubber for durability and tear resistance through repeated use.
• Low viscosity for easy measuring, mixing, vacuuming, and pouring.
• Easy 1:1 mix ratio by weight or volume—simple, reliable processing.
• Designed to resist softening or degradation when molds are stored properly over time.
• Compatible with most CAD-CAM resins/waxes; use a barrier coat if required (see Notes).

Specifications

What’s Included

• Castaldo LiquaCast® Long-Life Part A
• Castaldo LiquaCast® Long-Life Part B
• Total net contents: 2.2 lb (1 kg); mix 1:1

Compatibility & Applications

• Jewelry and small-parts molds requiring high detail retention, especially thin/filigree designs.
• Most CAD-CAM printed resins and wax patterns; for certain resins use barrier coat and/or mold release (see Notes).
• Works with vacuum degassing. If no vacuum pump is available, pressure curing in an empty (unheated) wax injector pot is an alternative.

Notes / Care & Safety

• Store finished molds in airtight containers away from heat and light; do not store in contact with molds made from other rubber types.
• Some resins may soften or adhere; use a barrier coating (e.g., PVA, spray paint, or Castaldo resin release) and then apply release spray as needed.
• Avoid moisture contamination; do not mix in paper cups or with wooden tools.
• Use gloves/eye protection; ensure adequate ventilation. See SDS and product labels for full safety guidance.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.