HARDENER HP is a chemical hardener used to increase the water resistance of water resistant emulsions like KIWO 225 WR, KIWOCOL 300 WR, POLY-PLUS HWR and POLYCOL ONE-COAT.Unlike other stencil hardeners, HARDENER HP will not result in an un-reclaimable stencil, although it may require...

KIWO HARDENER K is a red-colored chemical hardener that is applied to the stencil screen after developing the image to increase the water resistance of most photo emulsions. It works especially well with KIWOCOL POLY-PLUS HWR emulsion. HARDENER K chemically crosslinks with the emulsion...