Compard WAC Wetting Agent is a concentrated wetting agent for films and paper. WAC Wetting Agent reduces the drying time and increases the glossiness of papers. By uniformly draining the water from the paper with no droplets, stains or streaking, the drying time is reduced. This “lotus effect” is particularly important when developing negatives because the water residue does not have to be removed from the paper, minimizing the risk of damage to the negatives. This a a 120 ml bottle with 1:200 dilution.
The Brownie Camera Guy says:
Using a wetting agent is mandatory in my darkroom. I also suggest never using a squeegee on film. Let it drip dry after treatment.