Get clean, durable casts with this zinc-free, true bronze casting grain. It delivers a deep ancient bronze color with rich red undertones and takes patina beautifully.
Sold by the pound.
Any casting method.
Casting and Cleaning
In general, your casting temperature should be 100˚F (37.7˚C) above the liquidus point (somewhat hotter if the castings are intricate). Use a small amount of high-quality flux when melting with an open flame. We recommend Matt’s Casting Flux™. For further cleaning, mechanical means are recommended.
If you plan to re-use ancient bronze castings, remove the copper oxides from the surface in a pickling solution or by mechanical means. We recommend a minimum 1:1 ratio of new grain to used bronze. All re-used bronze should be clean and free of debris.
All ingredients are kept in an oxygen-reduced atmosphere during the melting and pouring process to ensure optimum deoxidation.
The grain is composed of 90% copper with some tin; it fits into the CDA#90700 category.
• Casting temperatures are approximate and need to be adjusted for each particular alloy, machine and application.
• Due to the manufacturing process of casting grain, the grain will vary in shape and size.
• For more information regarding the use or composition of this material, please refer to the reference sheet provided below.