GK Pro 5Ltr (Professional use only)

This is dependent on the biological loading of moulds and algae, however GK Pro will kill biological growth on application, although it will take time for the effect to be seen.

Mild staining, results can be seen within days.

Heavier loads can take 2-3 months to see radical improvements.

In severe cases of contamination, it may take 6-12 months to work or to see the full results.

The reason for this is part of the removal process is dependent on the weather cycles to remove detritus and biological contaminants on our behalf.

However, the effects of subsequent applications or maintenance cycles will be seen quicker and usually within days.

t can be applied all year round however results may be affected if rain occurs within 24 hrs and if temperatures are below 8 degrees Celsius.

As a minimum it is recommended that the product is applied on a dry day with little or no wind, and when rain is not likely for a minimum of 4 to 5 hours with temperatures at 5 degrees Celsius and rising.

Optimum gains can be made in warmer weather, and in conditions where there is minimal evaporation, allowing the surface to remain wet for longer, giving the product time to work.

Once dry GK Pro is safe around children and animals, however good practice is to keep them away during application.
GK Pro is plants safe provided you do not spray them directly. If you accidently overspray onto them, rinse down with clear water from a hose. It may scorch foliage, but it should not kill plants and grass lawns recover very quickly. It is good practice to protect them with waterproof fabric covers or plastic prior to spray.

GK Pro is bleach, ammonia, acids, and solvents free.

GK Pro will not interact with any substrate or product that is not living and, unlike many other cleaners is non-oxidising so will not damage your outdoor surfaces.

It can be used on virtually any outdoor surface including tarmac, bricks and paving, concrete, decking, roof tiles, render, solar panels, Astroturf, canvas tents, caravans, conservatories, fibreglass boats, polytunnels, limestone, sandstone, marble, outdoor furniture, outdoor pots, outdoor painted surfaces, pool surrounds, slate, non-grass tennis courts, yacht sails. It can also be used to clean painted surfaces without the risk of damaging the paint film.

When used on decking, it can reduce the risk of this becoming a slip hazard, by removing bio films that contribute to decking becoming slippery.

Yes. If the staining is extreme, a stronger concentration will bring a quicker reaction.

However likewise, if you have cleaned the surface previously and you are simply providing a routine maintenance spray, as contamination is light, you can decrease the strength and the cleaning process will still be effective.

GK Pro is more effective in warmer weather and concentration levels can be reduced, however equally in colder conditions, concentration can be increased to facilitates results. Our dilutions rates are based on providing a baseline application that should work consistently

Each 5 litre pack can be diluted into 250 litres to make 255 litres of product to spray. Using a garden sprayer, you will get coverage of around 1,250 square metres. Some surfaces (i.e., painted or cladding) will use less but porous surface coverage could be in the range of 1,250 square metres – the dilution should be halved if used on a tiled roof.