Steadfast

A compatibility-acidifying surfactant that protects your chemical investment by buffering pH and improving spray efficacy - independently proven to outperform LI700 as a wetter.

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Steadfast as a pH acidifying agent

Many agricultural chemicals degrade rapidly in high pH (alkaline) water. It is very common for bore water or irrigation canal water to have a pH of 8.0 or above - and organo-phosphate insecticides and many other agricultural chemicals break down rapidly when placed in alkaline water.

This breakdown can reduce the activity of pesticides even before the spray application is completed. Steadfast protects your chemical investment by reducing spray water pH by 2 or more pH points, adjusting it into a safe range where your inputs remain stable and effective.

Reductions in pH will vary from one water source to another, but Steadfast is active enough in most waters to bring pH into a productive range. View the alkaline hydrolysis table for a breakdown of how alkaline water affects common agricultural chemicals.

Steadfast as a spray wetter

In an independent trial conducted by Dr Ian Taylor of the CCC CRC, Steadfast was compared to LI700* and found to be more effective as a wetting agent.

Steadfast and LI700 were added to a 50% rate of Glyphosate and compared to a full label rate and a 50% rate without any surfactant. Adding Steadfast to the half rate of Glyphosate increased the level of weed control beyond that achieved with LI700 - making Glyphosate more effective and increasing knockdown to near the full label rate.

Steadfast is at least comparable and often less expensive per hectare than other buffering and spreading agents - making it by far the Better Wetter.

*LI700 is a registered trade name of Nufarm. Growth Agriculture does not recommend using below label rates. This trial was conducted for demonstration purposes only. Always read and follow the label.

Steadfast

Key benefits

  • Reduces spray water pH by 2+ points
  • Protects chemicals from alkaline hydrolysis
  • Improves spray efficacy across a wide range of products
  • Outperforms LI700 as a wetter (independent trial)
  • Cost-effective per hectare vs. alternatives
  • Works in most bore and irrigation water types
  • Easy to use - add to spray tank with chemical

Product specs

CategoryAcidifying surfactant
FunctionpH Buffer + Wetter
pH Reduction2+ points
vs LI700More effective (independent trial)
ApplicationAdd to spray tank

Application rates

For application rates to all crops, view the current label or speak with our technical team.

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