Heico NH-5 Hardener - Fixer - 4 x 1 gal SXK3_E0QKH86

Suitable for Film and Paper, Yields 5 Gallons, Removes Excess Silver, Makes Images Permanent on Paper, Non-Hardening. NH-5 Fixer Without Hardener for Black & White Film and Paper from Heico is part of a three-step process of development. The third and final step before washing fixing removes the excess silver from paper or film and makes the image permanent. This NH-5 fixer is a two-part component fixer that comes without hardener so that you can regulate the hardener. This 1-gallon bottle will yield 5 gallons.