Silicone Adjuvant

Silicone Adjuvant Silway 241


Silway 241 spray adjuvant is a polyether trisiloxane. In aqueous solutions, it gives super spreading and does dramatically reduces surface tension. Typically, Silway 241 spray adjuvant reduces the surface tension of aqueous agricultural mixtures significantly. At concentrations as low as 0.1 percent, Silway 241 spray adjuvant reduces surface tension below 22 mN/m, which produces very rapid wetting and spreading on hard-to-wet surfaces such as waxy leaves. Silway 241 spray adjuvant is nonionic in nature, making it useful with a broad range of agrochemical formulations.


Typical Applications

•Crop protection products




•Nutrients and plant growth regulators


Key Features

• Superspreading for exceptional spray coverage of crop and plant surfaces

• Up to 70% spray volume reduction to lower water use and application costs

• Excellent penetration providing better pesticide uptake and efficacy

• Better spray treatment adhesion on crop and plant surfaces Rainfastness to lower pesticide wash-off and waste

• Lower use levels than non-silicone surfactants

• nonionic


Typical Physical Properties



Surface Tension (0.1%, mN/m)


Cloud Point (0.1 wt%, ℃)


Viscosity (cSt, 25℃)


Specific Gravity (25/25 ℃)



• Silway 241 spray adjuvant may be used as a component in agrochemical formulations. Although organosilicone surfactants are subject to hydrolysis under acidic or basic conditions, optimum performance is achieved by buffering the formulation to pH 3.0-9.0. Additionally, it is recommended that Silway 241 spray adjuvant be used at a concentration of at least 5%, based on the total formulation.

• Silway 241 spray adjuvant, when used as a tank-side adjuvant may be used to improve spray coverage, improve uptake or to allow for a reduction in spray volume.

• Silway 241 spray adjuvant is most effective as a tank-side adjuvant when spray mixtures are used within 12 hours of preparation. Silway 246 spray adjuvant has been used successfully in spray applications globally. Typical applications include:


Typical Use Rate*

Plant Growth Regulators

0.025% to 0.05%


0.025% to 0.15%


0.025% to 0.1%


0.015% to 0.05%

Fertilizers and Micronutrients

0.015% to 0.1%

* Note: use rates are dependent on crop, agrochemical and spray volume requirements.

Packing :
1L, 5L, 25kg, 200kg or IBC tank

Storage: Being storage in closed containers

Shelf Life :36 months