Soundless Cracking Agent is a new type, environmental and convenient construction material that can crack rock and concrete without explosion. Apply to exploitation of various rocks, as well as make the concrete building removed and break up. Depending on the advantage of unique local materials in China. Pangolin.AG , it has advantages such as big power and short cracking time compared with the congeners.Pangolin.AG as a safe expansive demolition agent has been used safely and with great results by thousands of quarry owners, contractors and homeowners in China.