Hardeners A&B provide ultimate water resistance for waterbase and discharge ink systems.  Mix the emulsion hardener A&B in  equal parts and apply to the stencil after exposure, development, and drying. Once mixed the solution remains active for 24hrs. If emulsion is used as a block out it should be exposed prior to applying Hardeners A&B. After application the emulsion is semi permanent and may be hard to reclaim, especially on finer meshes.  Designed for use in long run water base and discharge ink printing where ultimate screen durability is needed.  Reclaiming is possible if HR-700 is applied for 5 minutes, then rinsed off with a hose prior to applying emulsion remover to the stencil.