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Silicone Wetting Agent
Ultra-fast, trisiloxane wetting agent — reduces contact angle below 10° for instant wetting of dusty, dry, and waxy surfaces. Ideal for WP dispersion, soil wetting, and seed coating slurries.
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Fast, Uniform Wetting for Hard-to-Wet Agricultural Surfaces
Silicone Wetting Agent is a trisiloxane-based, wetting agent formulated to instantly wet surfaces that resist water — dry, dusty, powdery, or waxy substrates that ordinary hydrocarbon wetters struggle with. Because it carries no ionic charge, it remains stable across a wide pH range and will not react with hard-water minerals, fertilizer salts, or ionic pesticide formulations, making it one of the most broadly compatible wetting agents available for agricultural use.
The defining property of this wetting agent is its ability to reduce the contact angle of a water droplet on a treated surface to below 10°, compared with 25–40° typical of conventional non-silicone wetters. This near-complete wetting is what allows the product to instantly re-wet dry wettable powders, dusty granules, and hydrophobic seed coatings — applications where slow or incomplete wetting causes uneven dosing and wasted product.
In practical use, growers and applicators add this wetting agent to irrigation water carrying water-soluble fertilizers or wettable powders to eliminate clumping and speed dissolution, or use it as a soil surfactant to break water repellency (hydrophobicity) in sandy or organic-matter-rich soils, improving infiltration and reducing localized dry spots. It is equally effective as a pre-treatment wetter for seed coating slurries, ensuring uniform coverage of seed surfaces before drying.
Unlike super-spreading silicone surfactants, this wetting agent is formulated for controlled, uniform wetting rather than maximum leaf-surface spreading — making it the preferred choice where consistent, non-runoff wetting is the priority, such as with wettable powder dispersion, dusty granule activation, and soil-applied treatments. Typical use rates range from 0.02–0.05% v/v, lower than many spreading-focused adjuvants, because complete wetting is achieved at very low concentrations.
The product is non-corrosive to spray equipment, low-odor, and remains effective in both soft and hard water up to 1000 ppm CaCO₃, giving applicators flexibility across different water sources without needing separate water-conditioning additives.
Why Choose This Wetting Agent
Mechanism of action
Silicone Wetting Agent works by rapidly orienting its trisiloxane head group at the water-air interface, collapsing surface tension to a point where the water droplet contact angle drops below 10° — essentially flattening the droplet across the target surface instead of allowing it to bead.
Because the molecule carries no ionic charge, it does not bind with calcium, magnesium, or fertilizer salt ions present in hard water or nutrient solutions, so its wetting performance stays consistent regardless of water source.
On dry or dusty substrates such as wettable powders or seed coatings, this rapid wetting eliminates the air-pocket barrier that normally slows water penetration, allowing near-instant dispersion instead of the slow absorption typical of hydrocarbon wetters.
Contact angle drops sharply below 0.02%, the point of near-complete wetting.
Product specifications
| Parameter | Value |
|---|---|
| Appearance | Clear, colorless to pale liquid |
| Active content | ≥ 97% (trisiloxane) |
| Viscosity (25°C) | 20 – 40 cSt |
| Density (25°C) | 1.00 – 1.03 g/cm³ |
| Cloud point (1% aq.) | > 35°C |
| Flash point | > 95°C |
| pH (1% aq.) | 5.0 – 7.0 |
| 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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Performance benchmark
| Property | This wetting agent | Hydrocarbon wetter | Alcohol ethoxylate |
|---|---|---|---|
| Contact angle | < 10° | 25–40° | 30–45° |
| Wetting speed (WP) | < 5 sec | 30–60 sec | 60–120 sec |
| Hard water stability | Excellent | Moderate | Poor |
| Use rate needed | Very low (0.02–0.05%) | Moderate (0.1–0.2%) | High (0.2–0.5%) |
| Soil wetting ability | High | Low | Moderate |
Wetting speed and soil infiltration results
Source: independent laboratory and field infiltration trials, 2024–2025.
Tank-mix compatibility
Fully compatible Test before full mix
Dilution calculator
Enter your spray or irrigation tank volume to estimate the recommended wetting agent dose (0.03% v/v typical).
How to apply
Safe use guidelines
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Personal protection — Wear gloves and eye protection when handling concentrate.
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First aid — Rinse skin/eyes with water; if ingested, seek medical advice.
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Storage — Keep sealed, cool, and dry, away from direct sunlight.
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Environmental — Low aquatic toxicity; suitable for irrigation-water use at label rates.
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Disposal — Dispose of containers per local regulations; do not contaminate water sources.
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Shelf life — 24 months in unopened original container.
Crops & use cases
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Row & field crops — corn, soybean, wheat, rice — improves WP/WG dispersion in tank mixes.
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Vegetable & fruit — leafy greens, tomato, citrus — soil wetting for irrigation efficiency.
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Turf & ornamentals — corrects localized dry spots caused by soil water repellency.
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Nurseries & greenhouses — wetting agent for potting media and seed coating operations.
Also suitable for use in drip irrigation systems and fertigation programs.
Why it outperforms
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Eliminates powder clumping — instant dispersion of WP/WG saves mixing time.
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Improves soil water use — reduces runoff and dry patches in water-repellent soils.
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Very low use rate — 0.02–0.05% v/v keeps per-hectare cost low.
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Reliability — consistent performance regardless of water hardness.
Application guidelines
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Mixing order: add wetting agent to water first, then introduce powders or granules slowly
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Irrigation use: inject via fertigation system for even soil-profile wetting
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Spray quality: fine to medium droplets (100–250 µm) for foliar applications
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Water source: no pre-conditioning needed even with hard water up to 1000 ppm CaCO₃
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 |
|---|---|---|
| Contact angle | ≤ 15° | < 10° |
| Surface tension (0.1%) | ≤ 27 mN/m | 24 mN/m |
| Hard water stability | 500 ppm CaCO₃ | Stable up to 1000 ppm |
| Aquatic toxicity (fish) | LC₅₀ > 100 mg/L | LC₅₀ > 180 mg/L |
| Biodegradability | OECD 301 | Readily biodegradable |
Frequently asked questions
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