The Foam Pump(KEXON) Bottle are designed to work with a thin substance of water-like consistency. It must have sufficient surfactants (soap or detergents) to create the foam. The liquid should be water-based, and it has to be able to foam using only normal air (no gasses or other propellants).

Many commercial soft or liquid soaps will work in the foam pump bottles if sufficiently diluted. However, often commercial liquid soaps, especially "gel" soaps, contain thickeners. Soaps with thickeners may require so much water to dilute them to "water-thin" that the effectivness and foamability of the soap is compromised.

Handmade liquid soaps usually work extremely well in the foam pump bottles as they are generally thin to start with and normally do not contain added fillers and thickeners. Do not use "melted down" bar soap in place of an actual liquid soap because bar soaps tend to clump or gel and can clog the mechanisms inside the foam pump.

Dilution Rate

You want to dilute the soap as much as you can, while still keeping the desired feel and consistency in the foam. As a general guideline, you should be able to dilute your normal liquid soap by 3 - 6 times.

Start with 1 part soap and 3 parts water, and see how it feels. Add additional water until the foam just barely starts to thin out. Slighly LESS than that amount of water is the right amount to use with that particular type of soap.

While it might be tempting to keep the liquid soap thick and reduce the dilution rate, doing so is likely to cause the pump to stick over time. Remember, these pumps were made for liquids of the consistency of WATER. The thicker the liquid, the more likely you are to have trouble with it in the future.

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