Lateral Penetration Test
The primary role of a penetrant wetting agent is to aid the removal of excess moisture from the playing surface downwards through the rootzone. The methodology involves two 500ml glasses was filled with the same amount of Zeolite. A solution was applied to each glass of water only (left) and penetrant wetting agent at label application rate, 10lts per Ha in 500lts of water (right).
A zeolite substrate was chosen as zeolites are very microporous and would absorb water into the material acting very similar to a porous rootzone.
Surface moisture content was recorded at the surface of each glass using a Delta-T Theta probe.
This experiment was replicated 10 times, each time using zeolite and glass wear to gain confidence in the accuracy of the data.
The photo demonstrates the glass on the left with no penetrant wetting agent, the water does not have a strong penetration and the zeolite quickly absorbs the moisture at the surface. Penetration depth was between 10-20mm per replicated trial.
The glass on the right hand side has a penetrant wetting agent added at label application rate, 10lts per Ha in 500lts of water. It demonstrates the penetration effect and the downwards movement of water. Penetration depth was limited to the bottom of the glass at between 135-148mm per replicated trial.
Surface Moisture content was also recorded at the surface of each glass. Untreated moisture content was typically 40% as compared to the treated surface moisture content of 15%. In the photo it can be visually seen that the darkest area of the zeolite is near the top of the glass, but in the treated glass the zeolite is the darkest towards the bottom of the glass. This highlights the lateral movement of the excess moisture.
Laboratory evaluation has highlighted the product is ready for commercialisation for Autumn 2018. Additional field trials have now commenced and results will be published very shortly to support the formulation in the future.