Foam a Friend

What is the role of foam?

All aqueous products will produce foam to some degree. The level of foaming, and its stability, is designed into the product.
Foam is an important component of an aqueous cleaner, and allows the product to cling to non-vertical surfaces, improving contact times. As the foam collapses, the bursting bubbles provide an important mechanical cleaning action which improves performance.

Is a high amount of foam good?

Not always, no. Foam reduces ease of rinsing, so must be correctly calibrated. Some foams are unstable, giving the best of both worlds; the foam then collapses quickly to improve rinsing performance.

Some examples of foam types:

Stable high foam – great for pressure washers on vertical surfaces and graffiti removal.
Unstable high foam – great for vehicle cleaning using pressure washers.
Normal foam – the go to formulation for most applications.

And when is foam not our friend? 

Scrubbing larger outside areas – car parks, yards - when time and water are at a premium and fast rinsing is essential. If a detergent is to be pumped under pressure, excess foam can cause cavitation and damage the pump.
Any application where excess foam may reduce efficiency.

Does water hardness affect foaming?

Yes. Water hardness affects foaming characteristics - softer water creates more foam. Hard water results in less foaming of washing liquids and detergents.
Check out our full range of aqueous cleaners here!