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Soak'n'Croak Frequently Asked Questions!


What is Soak'n'Croak?

The active ingredients of Soak'n'Croak and all similar slow release products are known as QAC's (quaternary ammonium compounds). They are all very similar in much the same way as all brands of detergentsl are very similar. The QAC chemicals are not readily absorbed by plants, so most manufacturers of products similar to ours use additives to achieve better absorption. Just wet the surface with a generous amount of Soak 'n' Croak and forget about it. The moss, lichen etc. will weather away.

How much difference do additives make in Soak'n'Croak?

Additives can improve performance by 15-20%. Foaming during application is not a problem when suitable additives are included in the concentrate.

How is Soak'n'Croak Different?

Soak 'n' Croak does not contain chlorine or caustic properties.  Some chlorine and caustic products have been "reinvented" and renamed and unfortunately these products have some inherent damaging characteristics which cannot be avoided when used frequently. Chlorine bleaches colours, rusts metal, destroys stitches and ruins clothing instantly. Caustic attacks the mortar in brick and stonework, can remove anodising from aluminium joinery very quickly. Caustic is the main ingredient in oven cleaners.

How much should you dilute?

Our concentrate is 30% active ingredient plus additives. You should dilute Soak 'n' Croak 1 part concentrate to 16 parts water or (60 ml to 1 litre of water).  For an even quicker result spray 1: 12.  You will still have a very strong spray mix.

Use of Soak'n'Croak for Covid 19?


The United States Environmental Protection Agency (EPA) has published a list of products that are effective against Covid 19. Many use quaternary ammonium compounds.  Customers in NZ can use our product, Soak 'n' Croak, to disinfect surfaces. (0.2% QAC = would mean customers need to put 10 ml Soak n Croak per 1 Litre water and you have an effective surface sanitiser.

Note: Inclusion on this list does not constitute an endorsement by EPA. Additional disinfectants may meet the criteria for use against SARS-CoV-2. EPA will update this list with additional products as needed.

When using an EPA-suggested disinfectant (quaternary ammonium products like Soak 'n' Croak), leave on hard surfaces for 10 minutes for safe, effective use. Make sure to follow the contact time, which is the amount of time the surface should be visibly wet.

We ask that you accept delays which will be brought about by courier service being used by so many new businesses and we hope to resume our reliable service to all customers as time goes by.
We apologize for this inconvenience, see the below link for more information:

Why Should You Buy "Soak 'n' Croak"?

  1. Peace of mind. No property damage.

  2. Our prices are extremely competitive.

  3. Environmentally friendly.

  4. We make a 30% concentrate which you can dilute 1-16 water, to make a 2% spray mix.

  5. Competitors make a 10% concentrate diluting 1-4 water, to make a 2% spray mix. Therefore Soak 'n' Croak concentrate produces more volume of spray mix. The result is that you will save money when buying 5 litres to 200 litres.

Clever ways to use our range of products!

There are many ways to use our products, and here are some clever ones, we wanted to share!

Franchised Commercial Cleaners

Without any encouragement from us, we find some of our regular repeat customers are franchised cleaners for HIRE A HUBBY, "Jim's Mowing" etc.

Professional cleaners avoid "might work" products. They cannot escape the anger of home owners with damaged property.

Artificial Turf

We have had a letter from a Whangarei bowling club thanking us for the very satisfactory result when using Soak'n'Croak on their "Green Gage" turf. We have also had repeat orders from the Wellsford Bowling club.

Saw Mill Use

A Kaikoura timber mill is using Soak'n'Croak to prevent Sap Stain on freshly sawn timber, we recommend diluting 1 -20 minimum, 1 -30 maximum.

Cafe Use (To combat Sugar Growths in Drains)

Syrups such as Coke, Pepsi etc dripping from dispensers usually generate film forming bacteria which will create a leather like lining in drain pipes which is impossible to remove with any chemicals. You can prevent this by putting a litre of 1 part Soak'n'Croak to 20 parts water down every sink once a week. (Leave it there, don't rinse it out.) Soak'n'Croak is compatible with all normal detergents.


One of our regular customers purchased Soak'n'Croak for a huge job - tarsealed runway for a provincial airstrip. Used 1:9 to do the job with a sprayboom over a 10,000 sqm (1 x ha) area. Soak 'n' Croak kills germs too so is good for those tarsealed tennis courts that the family play on.

Monumental Masonry

Ever wondered how to keep gravesite masonry free of grime day in day out?

Soak'n'Croak has been purchased for just such job! We are told it works very well to keep the stone free of moss, mould and lichen. When you visit you can spray masonry so it is quite wet then forget the job giving a lasting effect. When you visit the next time, you will see Soak'n'Croak continue to work as time goes by.


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