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Silicone Additive for Crop Protection
Multi-role organosilicone formulation modifier — adjusts droplet spectrum for drift control, slows leaf-surface evaporation, moderates SC/OD rheology, and provides secondary foam control in one ingredient.
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A Formulator's Multi-Function Toolbox Additive
Silicone Additive for Crop Protection is a modified organosilicone ingredient formulated to serve as a general-purpose performance modifier across a wide range of crop protection product types, rather than being optimized for a single function like wetting, spreading, or defoaming alone. It is positioned as a formulator's toolbox additive — a single ingredient that, depending on dosage and the base formulation it is added to, can adjust spray droplet size and drift potential, slow evaporation from the leaf surface, moderate viscosity in high-load suspension concentrates, and provide moderate foam control, all without requiring separate specialty additives for each function.
The drift-and-evaporation control role is a particular differentiator: at 0.03–0.08% v/v, this additive measurably shifts spray droplet spectrum toward a coarser, less drift-prone distribution while simultaneously slowing the evaporation rate of the deposited droplet on the leaf surface — extending the effective contact time available for active ingredient uptake, which is especially valuable in hot, low-humidity conditions where fast-evaporating droplets can leave the active ingredient stranded on the leaf before it is absorbed.
In suspension concentrate (SC) and oil dispersion (OD) formulations, this additive is used at lower dosage (0.5–1.5% w/w) as a rheology modifier, helping to control the viscosity profile of high-solids-loading formulations so that they remain pourable and pumpable without settling of the suspended active ingredient particles during storage — a common formulation challenge as manufacturers push toward higher active-ingredient concentrations to reduce packaging and shipping costs.
The additive also provides moderate, secondary foam control, though it is not a substitute for a dedicated defoamer in severely foam-prone systems — its foam-moderating effect is a useful side benefit of its surface activity rather than its primary design purpose, and formulators handling persistent foam problems should still pair it with a purpose-built silicone defoamer.
Because it performs multiple secondary roles rather than one specialized role at maximum intensity, this additive is best understood as a formulation-simplification tool: replacing two or three narrow-purpose additives with one broader-spectrum ingredient, reducing the raw-material count and associated compatibility testing burden in a new formulation.
One Additive, Multiple Formulation Roles
Mechanism of action
Silicone Additive for Crop Protection derives its versatility from a moderately modified siloxane structure that is surface-active enough to influence droplet formation and evaporation, but structured to avoid the extreme, single-purpose behaviour of a dedicated super-spreader or defoamer.
In the spray tank, its presence at the nozzle changes the surface tension and viscoelastic properties of the fluid just enough to shift the droplet size distribution produced during atomization toward a coarser spectrum, reducing the proportion of very fine, drift-prone droplets without eliminating fine droplets needed for coverage entirely.
On the leaf surface, the same surface activity that shapes droplet formation also forms a thin film over the deposited droplet that slows the rate of water evaporation, keeping the active ingredient in solution and available for uptake for a longer window before the deposit dries completely.
Droplet spectrum shifts progressively coarser with increasing concentration, reducing drift-prone fines.
Product specifications
| Parameter | Value |
|---|---|
| Appearance | Clear to slightly hazy liquid |
| Active content | ≥ 96% (modified organosilicone) |
| Viscosity (25°C) | 80 – 150 cSt |
| Density (25°C) | 1.00 – 1.04 g/cm³ |
| Flash point | > 100°C |
| pH (1% aq.) | 5.5 – 7.5 |
| Compatibility | SC, OD, EC, WG systems |
| Storage stability | 24 months (cool, dry) |
Performance data
- 2021
Company Establishment
- 10000m²
Advanced Factory
- 50+
Exporting Country
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Performance benchmark
| Property | This multi-role additive | Drift-control-only polymer | Rheology modifier only |
|---|---|---|---|
| Functional roles covered | 4 (drift, evap., rheology, foam) | 1 (drift only) | 1 (rheology only) |
| Droplet spectrum control | Yes | Yes | No |
| Evaporation retardance | Yes | No | No |
| SC/OD rheology modification | Yes | No | Yes |
| Raw material count needed | 1 additive | 2–3 additives | 2–3 additives |
Drift reduction and leaf-contact time results
Source: internal spray-lab droplet analysis and leaf-deposition trials, 2024–2025.
Tank-mix compatibility
Fully compatible Test before full mix
Dilution calculator
Enter your tank or formulation batch volume to estimate the recommended additive dose for your target function.
How to apply
Safe use guidelines
- Personal protection — Wear gloves and eye protection during handling and mixing.
- First aid — Rinse skin/eyes with water; if ingested, seek medical advice.
- Storage — Keep sealed, cool, and dry, away from direct sunlight.
- Environmental — Biodegradable; low aquatic toxicity across the functional dosage range.
- Disposal — Dispose of containers per local regulations; do not contaminate water sources.
- Shelf life — 24 months in unopened original container.
Crops & use cases
- Row crops, hot climates — corn, soybean, cotton programs needing evaporation retardance.
- Windy/drift-sensitive regions — field-edge and buffer-zone-adjacent applications.
- SC/OD formulators — high-solids-loading products needing rheology stabilization.
- General crop protection tank mixes — growers wanting one adjuvant for multiple secondary benefits.
Also used where regulatory drift-reduction requirements call for measurable droplet spectrum shifts.
Why it outperforms
- Consolidates functions — one additive covers drift, evaporation, rheology, and mild foam control.
- Extends leaf contact time — up to 40% longer droplet drying time in hot, dry conditions.
- Simplifies formulation — fewer raw materials to source, test, and register.
- Flexible dosage response — low rates for rheology, higher rates for drift/evaporation control.
Application guidelines
- Dose by objective: select rate based on whether drift, evaporation, or rheology is the priority
- Tank mixing order: add as the last component to the spray tank for drift/evaporation applications
- Hot-weather timing: use the higher end of the rate range when applying in heat or low humidity
- Formulation testing: run a small-batch rheology trial before scaling to full SC/OD production
Packaging & shelf life
- Packaging: 1 L, 5 L, 20 L, 200 L drums / IBC totes.
- Storage: cool, dry, away from direct sunlight; 5–40°C.
- Shelf life: 24 months in unopened original container.
Global quality benchmarks
| Test item | Standard requirement | Our performance |
|---|---|---|
| Fine droplet reduction | ≥ 20% | ≥ 55% |
| Evaporation slowdown | ≥ 15% | ≥ 40% |
| SC sediment (30 days) | < 5% | < 2% |
| Surface tension | ≤ 30 mN/m | 26–28 mN/m |
| Biodegradability | OECD 301 | Readily biodegradable |
Frequently asked questions
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