3“ Rubber Sprue Base
- Diameter: 3''
- With round nose.
- Brand new rubber sprue base.
- Made of tough flexible rubber.
- For plaster and wax investment casting and molding for metal and jewellery casting.
- Great for holding the sprue rod in the casting flask while pouring in the investment powder.
- Attaches to a solid or perforated flask when using.
- Melt wax into the center hole and then either add a sprue or attach wax models right to the dome base.
- Tree sprue base are perfect for high production jewelry making studios.
- Sprue base assures a leak proof seal when casting.
3.5" Rubber Sprue Base
- Diameter: 3.5''
- With round nose.
- Brand new rubber sprue base.
- Made of tough flexible rubber.
- For plaster and wax investment casting and molding for metal and jewellery casting.
- Great for holding the sprue rod in the casting flask while pouring in the investment powder.
- Attaches to a solid or perforated flask when using.
- Melt wax into the center hole and then either add a sprue or attach wax models right to the dome base.
- Tree sprue base are perfect for high production jewelry making studios.
- Sprue base assures a leak proof seal when casting.
4" Rubber Sprue Base
- Diameter: 4''
- With round nose.
- Brand new rubber sprue base.
- Made of tough flexible rubber.
- For plaster and wax investment casting and molding for metal and jewellery casting.
- Great for holding the sprue rod in the casting flask while pouring in the investment powder.
- Attaches to a solid or perforated flask when using.
- Melt wax into the center hole and then either add a sprue or attach wax models right to the dome base.
- Tree sprue base are perfect for high production jewelry making studios.
- Sprue base assures a leak proof seal when casting.





