Jesmonite AC100 series and AC730 series are both versatile and durable casting and laminating materials commonly used in the construction and design industries. However, they have some key differences. The Jesmonite AC100 series is a water-based composite material that is suitable for a wide range of applications, including casting, laminating, and coating. It has a smooth, fine-grained finish and is easy to work with.

On the other hand, the Jesmonite AC730 series has a more pronounced, textured finish compared to the AC100 series. Jesmonite Ac730 contains a fine decorative aggregate and powder pigments, carefully controlled to give a consistent decorative surface finish. Jesmonite AC730 requires a brick cleaner solution in order for the texture of the AC730 to be 100% completed. 

You can learn more by watching this Jesmonite official video here: