Castaldo · VLT
Castaldo VLT Very Low Temperature Silicone Jewelry Molding Rubber
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Waxing & Mould Making
Wax & Mold-Making Consumables
KYG0547
Castaldo Econosil Silicone Jewelry Molding Rubber
Castaldo · Econosil
Hard, flexible silicone molding rubber for low-temperature metal casting in jewelry and small parts.
Waxing & Mould Making
Specifications
| Color | Brick-red/Brown |
|---|---|
| Shore a Hardness | 48–50 |
| Maximum Temperature Resistance | 660°F / 350 °C |
| Vulcanization Temperature | 165–176 °C |
| Rubber Shrinkage | Low (1.1%) |
| Break Elongation | 555% |
| Break Tensile Strength | 6.2 N/mm² |
| Break Tear Strength | 19.4 N/mm² |
| Standard Strip Size | 18" x 2 7/8" x approx. 3/8" (45.7 cm x 7.3 cm x ~6 mm) |
| Packaging | 5 lbs (2.27 kg) per box, 10 boxes per carton (total 50 lbs / 22.7 kg) |
| Lining | Special release paper on both sides |
Overview
Highlights
- Hard yet flexible; ideal for fine detail and large molds.
- Withstands up to 660°F/350°C for direct metal casting.
- Easy to cut and handle with special double-sided release paper.
Applications
- Production of jewelry molds for low-melting alloys.
- Casting toy figures, decorative items, and collectibles.
- Forming machine, tool, and cabinet hardware prototypes.
Overview
Castaldo Econosil Silicone Jewelry Molding Rubber is a firmer yet flexible silicone rubber designed for direct casting of low-temperature metals. It is particularly suited for jewelry, collectibles, and small industrial parts, offering high strength and fine detail reproduction at a lower cost than premium alternatives. The product features a distinctive brick-red/brown color and comes lined with special release paper on both sides for easy handling and demolding.
Econosil withstands temperatures up to 660°F (350°C), making it compatible with lead, pewter, tin, zinc, and other low-melting alloys. Its low shrinkage, high tear strength, and ease of cutting simplify the mold-making process, allowing for both simple and complex molds that deliver reliable results. Each strip measures 18” x 2 7/8” x ~3/8” (45.7 cm x 7.3 cm x ~6 mm), and is packaged for professional and workshop use.
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