* SCA (soundless cracking agent) for rock breaking, stone quarring and concrete demolition what is SCA.

* Soundless cracking agent (also known as non explosive demolition agent) is an inorganic chemical powder, which is non explosive non toxic environmentally friendly, controlled demolition agent with amazing expensive capabilities.

* It expends when mixed with common water and poured into pre-drilled holes on stone or concrete it creates an extreme pressure higher than 70 mpa(7000 t/m) on the hole-walls. While the tensile stress of nature stone and concrete is 3 to 10 mpa (300-1000 t/m) so as to break them easily.