Super wetting and spreading synergist
SP-4026
Super spreading and wetting agent, improving the wetting and spreading ability of spray solutions. It leads to superior efficacy and long residual activity.
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Product Details

1. Product Introduction

SP-4026 is a super spreading and wetting agent, improving the wetting and spreading ability of spray solutions. When controlling small pests such as red spiders, whiteflies, and thrips, these pests often inhabit concealed locations like the undersides of crop leaves or within flower buds. As a result, pesticide spray solutions have difficulty in wetting and reaching the pests hidden in these sheltered areas, allowing the pests to rapidly reproduce and damage the crop just days after application. This leads to poor efficacy and short residual activity. Our product can solve this problem.


2. Physical and Chemical Properties

Item

Typical Data

Appearance (25°C)

Amber transparent liquid

pH (1% aqueous solution)

5.5 – 7.0

Water solubility

Readily soluble in water

Specific gravity (25°C)

≈1.00


3. Product Features

    1. Super wetting and spreading synergistic adjuvant – Extremely low contact angle in aqueous solution; can fully spread on plant or insect surfaces to form a uniform liquid film, significantly improving the wetting and spreading ability of the spray solution, helping the solution reach pests hiding in concealed parts of crops.

    2. Ultra-low surface tension – Effectively enhances the penetration of the spray solution into the target epidermis, allowing rapid entry into the target organism and greatly improving efficacy.

    3. Flexible use – Can be used as a tank-mix additive or incorporated into formulations.

    4. Tank-mix dosage – Recommended dilution of 3000–5000× for optimal synergistic effect; minimum dilution not lower than 2000×. For sensitive young flowers and young fruits, a dilution of 5000× is recommended.

    5. Formulation addition – Can be added to EC and DF formulations; recommended addition level is 10%.


4. Application Examples

Formulation

Dilution ratio

Surface tension (mN/m) (25°C, 70%)

Contact angle (°)

Wetting (canvas disc method)

Spreading area

Liquid retention (μg/cm²)

Product S

1000×

31.72

51.69

29'32"

20

57

S + SP-4026

1000× + 3000×

20.56

3.47

8"

482

22

S + Silicone

1000× + 3000×

21.27

8.11

19"

270

12

Test results: After tank-mixing SP-4026 into the spray solution, it promotes rapid wetting and spreading, significantly improving the wetting and spreading performance on hydrophobic target crop surfaces. At the same time, it avoids the problem of reduced liquid retention on the target surface caused by excessive spreading. It is most suitable for use with contact-type pesticides and can significantly improve the speed of action.

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