Product Description
Castaldo Super High Strength™ Item #800
A superior quality medium hardness jewelry molding rubber with extreme tear and tensile strength for every application including spirals, cores, cut-outs & plugs as well as for general purpose use. Can be used with Econosil® on the outside for additional stiffness or on the inside for additional dimension stability.
Shore A hardness: 38 – 40.
Tensile strength: 8.3 n/mm² / 1204 psi
Vulcanizes at 165°-176° C / 330° – 350° F.
Tear strength: 21.2 n/mm / 121 lbs./ in.
Medium shrinkage – 2.3%.
Elongation: 667%
Color: traditional tan.
Features
- Castaldo silicone jewelry molding rubbers produce waxes with an extremely smooth high shine finish that won’t stick to the mold. Smooth shiny waxes means faster cleaning and less polishing of finished castings.
- Wax patterns release from the rubber easily without the use of messy powders or silicone sprays.
- Molds cut “like butter” yet resist tearing. Castaldo silicone jewelry molding rubbers make complex molds that are stronger than any other silicone molding rubber on the market. Molds last and last!
- Castaldo silicone molding rubbers will not discolor silver models.
- High thermal conductivity means that waxes cool more quickly, increasing the number of wax patterns that can be made per hour.
- Castaldo silicone jewelry molding rubbers make molds that are ideal for vacuum wax injectors because they seal between injections almost as if they had never been cut. A better vacuum is created for better flow and fill.
- Excellent return to shape, or “memory”
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