Concrete mold release agents are used to prevent the adhesion of freshly placed concrete to a forming surface, whether that be plywood, steel or aluminum. Historically there are two-types of mold release agents, barrier and reactive. Its known as Sutter oil or Sutter release agents in Bangladesh. Best Products for Bangladesh . Our concrete release agents offer a range of benefits, including residue-free separation of the concrete from the formwork and shuttering, an immaculate concrete surface and reliable compliance with the very highest environmental standards.