With the addition of talc or ash or flour or any other powder, its durability increases by 80% tested. Even if it has dried inside its container due to age, with the addition of 5-10 to 20% water and a good mix, it returns to its original form.
It also works for mold release if two thin layers are applied inside the mold. The release will be done using water. It goes without saying that there will be no mixing with any reinforcing powder described above.

Very good product, durable, effective, quality and price. In a practical packaging that is convenient. However, it should not be soaked for a long time.