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Silicone Agricultural Adjuvant RJ-7033

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Molecular formula: C10H28O3Si3(C2H4O)n

CAS No.: 67674-67-3

Chemical name: Polyether modified silicone fluid; Polyether modified siloxane

Silicone Agricultural Adjuvant RJ-7033(Nonionic silicone surfactant for agriculture) is trisiloxane modified silicone surfactant. It's a generally used silicone spreader, with it's super spreadability and penetrability, can be used as spray adjuvant with agrochemicals to improve their performance.

This super-spreader could decrease the surface tension of liquid fiercely, making them wet the foliar surface quickly and compeletely. RJ-7033 is also particularly effective in preventing ingredient from being washed by rain(rainfast).     

1. Wetting effect

Technical Index

AppearanceColourless to amber clear liquid
Surface tension(0.1%)21.5mN/m MAX
Viscosity(mm2/s ,@25°C)20~45 
Cloud point(1% in water solution)10°C MAX
DissolutionDissolve in water
Ion typeNonionic
Effective content:100%

Note of Use

RJ-7033 can be used as a component of 0.5~8% in agrochemical formulations. Proposing of formulations pH value is 6~8. Users should adjust the usage of nonionic silicone surfactant  according to different varieties and condition, in order to achieve the most cost-effective results. Prior to the use, compatibility testing and pilot ladder testing should be done.

The tank-mix:

As a tank mix additives, wetting agent RJ-7033 can improve spray coverage, promote absorption, and reduce the amount of spray. If the spray mixture PH is 5-8, and used within 24 hours after preparation, this silicone surfactant would act well.

Usually we add 0.025% -0.1% silicone surfactant in the low spray volume to achieve sufficient coverage.

The typical usage is as follows: 

Usage of silicone surfactant RJ-7033Volume
Plant Growth Regulator0.025-0.05%
Fertilizers and trace elements0.015-0.1%

Experimental Video

Video 1: RJ-7033 foliar wetting experiment


RJ-7033 is available in 200kg plastic drums, 1000kg IBC drums or other packing on request.


Transport as non-hazardous chemicals. Store in original container only.

Keep container tightly closed and store in cool, well ventilated place.

Shelf life

Shelf life: 1 years.

   Spreading   Penetrating 
Foam Decay  CAS No.       Features
RJ-7033      ●●●●●●●●●●●●  67674-67-3    

      Super spreader

       & Penetration

RJ-7077   ●●●●●●●●●●●●●


      Low foam

      Good compatibility 

RJ-7086   ●●●●●●●●●●●●●●  134180-76-0

      Low foam,

      Super spreader 

   ●●●●●●●●●●  134180-76-0

      Good compatibility, 

      Wide PH application range(4-8)

   ●●●●●●●●●●●●●●  134180-76-0      Super Spreader 
   ●●●●●-  17955-88-3      Oil based silicone surfactant