There are 3 methods we recommend for achieving a bronze looking part.
- A single mix and pour solid cold cast bronze part – usually for smaller parts.
- A slush coat surface mix with a backup filler mix – more economical for larger parts.
- A dry bronze powder surface coat with a resin backup mix – Uses the least amount of bronze powder resulting in lowest cost for the part, however, more expensive silicone molds are required for this one.
These three methods can be reviewed in more detail at:
https://www.polytek.com/tutorial/cold-cast-bronze-three-casting-methods