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Agricultural Silicone Spray Adjuvant
Professional non-ionic organosilicone adjuvant – dramatically reduces surface tension, enhances wetting, spreading, and penetration. Compatible with herbicides, insecticides, fungicides, and foliar fertilizers. Suitable for ground, aerial, and drone applications.
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Premium Silicone Adjuvant for Modern Agriculture
Agricultural Silicone Spray Adjuvant is a high-performance non-ionic organosilicone surfactant engineered to optimize the efficacy of crop protection products and foliar nutrients. Unlike conventional surfactants, this adjuvant features a unique trisiloxane backbone that delivers exceptional surface activity, enabling spray solutions to spread rapidly across waxy leaf surfaces, penetrate stomata, and resist wash-off. The result is better coverage, faster uptake, and more consistent field performance — even under challenging environmental conditions.
Formulated with >98% active silicone polyether, the adjuvant reduces the dynamic surface tension of water-based sprays to approximately 22 mN/m at 0.1% concentration. This ultra-low tension allows droplets to spread and cover 2–3 times more leaf area compared to standard non-ionic surfactants. The spreading action is particularly valuable for weeds with hairy or hydrophobic leaves, such as waterhemp, goosegrass, and broadleaf weeds, where conventional sprays tend to bead and roll off.
Beyond spreading, the adjuvant enhances cuticular penetration by temporarily disrupting the epicuticular wax layer, facilitating rapid absorption of active ingredients. This property is critical for systemic herbicides (glyphosate, glufosinate, 2,4-D) and fungicides (strobilurins, triazoles) where foliar uptake directly influences efficacy. Field trials consistently show that adding this silicone adjuvant at 0.05–0.1% v/v can improve weed control by 15–30% while allowing reduced herbicide rates — supporting sustainable farming and lowering input costs.
The adjuvant also exhibits excellent rainfastness. Once the spray deposit dries (typically within 30–60 minutes), it forms a hydrophobic film that resists wash-off by light to moderate rainfall. This feature provides growers with a wider application window and reduces the risk of re-treatment. Additionally, the product is low-foaming, making it compatible with high-speed sprayers, aerial application, and unmanned aerial vehicles (UAVs) where foam suppression is essential for pump performance and tank stability.
Environmentally, the adjuvant is biodegradable and exhibits low acute toxicity to aquatic organisms (LC₅₀ > 200 mg/L for fish). It is compatible with most agrochemical formulations, including suspension concentrates (SC), emulsifiable concentrates (EC), water-dispersible granules (WG), and soluble liquids (SL). The adjuvant also improves tank-mix compatibility when combining multiple products, reducing the risk of precipitation or phase separation. With a shelf life of 24 months and stable performance across a wide temperature range, it is a reliable partner for modern crop protection programs.
Why Choose Silicone Adjuvant
Mechanism of action
Agricultural Silicone Spray Adjuvant leverages the unique properties of trisiloxane surfactants. When added to a spray solution, it rapidly reduces the dynamic surface tension to approximately 22 mN/m – far lower than conventional surfactants.
This ultra-low tension allows droplets to spread and wet leaf surfaces almost instantaneously, covering 2–3× more area. The adjuvant then disrupts the epicuticular wax layer on the plant surface, enabling active ingredients to penetrate stomata and cuticle more efficiently.
Once the spray deposit dries, the adjuvant forms a hydrophobic film that provides rainfastness, reducing wash-off by light to moderate rainfall.
Dynamic surface tension decreases sharply with concentration, plateauing near 0.1%.
Product specifications
| Parameter | Value |
|---|---|
| Appearance | Clear to slightly hazy liquid |
| Active content | ≥ 98% (silicone polyether) |
| Viscosity (25°C) | 40 – 80 cSt |
| Density (25°C) | 1.01 – 1.05 g/cm³ |
| Cloud point (1% aq.) | > 40°C |
| Flash point | > 100°C |
| pH (1% aq.) | 5.5 – 7.5 |
| Storage stability | 24 months (cool, dry) |
Performance data
- 2021
Company Establishment
- 10000m²
Advanced Factory
- 50+
Exporting Country
Our Certifications
And Partners
Professional scale factory production. We can customize finished products wholesale and export, OEM production, and distribution.
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Adjuvant performance benchmark
| Property | Silicone adjuvant | Conventional NIS | Vegetable oil |
|---|---|---|---|
| Surface tension (0.1%) | 22 mN/m | 32–36 mN/m | 28–32 mN/m |
| Spreading area (relative) | 2.5× | 1.0× | 1.3× |
| Penetration enhancement | High | Moderate | Moderate |
| Rainfastness (1 hour) | Excellent | Poor | Fair |
| Foam tendency | Low | High | Low |
| Drone compatibility | Yes | Limited | Yes |
Proven performance in the field
Source: independent field trials, 2024–2025. Data represent average of 12 locations.
Tank-mix compatibility
Fully compatible Test before full mix
Dilution calculator
Enter your spray tank volume to get the recommended adjuvant dose (0.05% v/v for general use).
Adjust rate according to crop and application type. For drone use, 0.05–0.08% is typical.
How to apply
Safe use guidelines
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Personal protection — Wear gloves, goggles, and long sleeves during mixing.
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First aid — In case of contact, rinse skin/eyes with plenty of water. If ingested, seek medical advice.
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Storage — Keep in original container, tightly closed, in a cool, dry place (5–40°C).
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Environmental — Biodegradable (OECD 301). Low toxicity to fish (LC₅₀ > 200 mg/L).
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Disposal — Dispose of empty containers according to local regulations. Do not contaminate water sources.
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Shelf life — 24 months in unopened container. Avoid extreme temperatures.
Crops & use cases
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Row crops — corn, soybean, wheat, rice; boosts herbicide & fungicide performance.
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Fruit & vegetables — citrus, grapes, tomato, leafy greens; improves disease control.
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Oilseed & fibre — cotton, rapeseed, sunflower; reduces spray wastage.
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Specialty — orchards, vineyards, plantation crops; excellent for trunk sprays.
Also suitable for turf, ornamentals, and forestry applications.
Why it outperforms
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Reduced pesticide use — improves efficacy, allows 20–30% rate reduction.
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Faster absorption — systemic actives enter plant tissue within hours.
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Drift reduction — larger droplets due to improved rheology.
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Cost-effective — low use rate delivers high return on investment.
Application guidelines
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Tank mixing order: add pesticides/fertilisers first, then adjuvant as last addition.
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Pre-dilution: pre-mix with a small amount of water before adding to the spray tank.
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Spray quality: fine to medium droplets (100–250 µm) for best coverage.
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Environmental conditions: apply when wind < 15 km/h, avoid extreme heat.
Packaging & shelf life
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Packaging: 1 L, 5 L, 20 L, 200 L drums / IBC totes.
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Storage: cool, dry, away from direct sunlight; 5–40°C.
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Shelf life: 24 months in unopened original container.
Global quality benchmarks
| Test item | Standard requirement | Our performance |
|---|---|---|
| Surface tension (0.1%) | ≤ 25 mN/m | 22 mN/m |
| Spreading area | > 100 mm²/10µL | > 200 mm² |
| Hard water stability | 500 ppm CaCO₃ | Stable up to 1000 ppm |
| Aquatic toxicity (fish) | LC₅₀ > 100 mg/L | LC₅₀ > 200 mg/L |
| Biodegradability | OECD 301 | Readily biodegradable |
Frequently asked questions
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