Stencils can be hardened after exposure and development to increase the stencil resistance. Our chemical hardeners provide permanent, but no longer reclaimable/decoatable stencils. These become fully water-resistant. Depending on the type of screen emulsion and hardener used, this post-hardening effect is either stronger or weaker. Water-resistant screen emulsions as used in the textile industry become even more resistant, while solvent resistant screen emulsions are achieving some water-resistance. Dual cure polymer emulsions might show some brittleness, if non-aqueous print media are used.


FOTECHEM 2119 is our multipurpose catalyst for dual- and triple cure water-based emulsions.