Low Melt Metal
High Finish White Metal (BT Ore)
BT ORE is a low-melt, non-lead, castable white metal that polishes to a silver finish. Parts are easily made: Melt alloy and pour it into a Silicone RTV Mold and allow cast to cool before de-molding. Applications include jewelry, belt buckles, doorknobs, or any part requiring a metal part.
- Specific Gravity: (9.01) 0.34/lb./cu3inch) Tin Ore – 60% Tin Alloy
- Color: Brilliant white
- Melt Temperatures: 310F
- Casting Temperatures: 350F
- Best Silicone RTV: Platinum Base
- Small thin pieces: Tin base
- Shore Hardness: 92D
- Alloy: Bismuth/Tin (no lead)
- Tensile Strength: 8000 psi
- Coefficient Thermal Expansion in/c: .000015
- Shrinkage: 0.0001
- Thermal Conductivity cal/cm2/c/sec: 0.09
- Conductivity: 7.77% (Compared to Copper)
Directions:
Heat metal in a temperature controlled cooker till liquid—350F. Pre-dust silicone molds with Thermolite or Talc powder. Pre-heat molds to 250f or recycle first cast until desired surface finish is the result of cast. Once cooled BT ORE can be polished to a high-quality finish. Sealers must be applied to avoid oxidation. Various sealers are used from automotive wax to a lacquer base paint. Pre-test any paints for adhesion prior to production. **Use a Platinum RTV Silicone for large thick casts and a Tin RTV Silicone for small thin casts less than ½ inch thickness.
Caution:
Handling this material requires the use of proper heat resistant work gear: Face Shield, Gloves, and Apron. Take precaution to cover any exposed body parts from hot metal.
The information and data contained herein are based on information we believe reliable. Each user of the material should thoroughly test any application and independently conclude satisfactory performance before commercializing. Suggestions of uses should not be taken as inducements to infringe on any particular patent.