Understanding FFAST™ Technology: The Science Behind AquaPy’s Superior Droplet Performance

In professional pest management, the performance of a space spray depends on one thing above all: how long droplets stay suspended in the air. The longer droplets remain airborne, the higher the chance they collide with flying insects, delivering effective knockdown and faster control.

This is exactly where FFAST™ — Film Forming Aqueous Spray Technology — provides a measurable advantage, and why it is central to the performance of products like AquaPy®.‑Forming Aqueous Spray Technology — provides a measurable advantage

 

What Is FFAST™?

FFAST™ is a patented formulation technology designed to enhance the behaviour of water-based spray droplets. Water alone evaporates quickly; in traditional aqueous sprays, droplets shrink rapidly and fall out of the air before they reach their targets.‑based spray droplets

FFAST™ overcomes this by forming a protective polymer-based film around each droplet, dramatically reducing evaporation and maintaining the droplet’s effective size for longer.‑based film

Your internal technical materials describe this process as:

• “A unique coating which helps particles stay suspended for longer, maximising airborne contact and improving performance.”
• “Spray droplets encased in a polymer coat of long chain alcohols—minimising evaporation to carry space spray droplets efficiently to target.” ‑chain alcohols—minimising evaporation to carry space spray droplets efficiently to target.”

 

How the Droplet Coating Forms (The 3 Stage Mechanism) Stage Mechanism)

Stage 1 — Atomisation & Rapid Water Loss

As the spray is released, the warm air around the droplet begins to evaporate water rapidly.

Stage 2 — Migration of Long Chain Alcohols Chain Alcohols

The droplet contains long chain alcohol molecules. As water begins to evaporate, these molecules migrate to the surface, forming an emerging film. chain alcohol molecules

Stage 3 — Complete Surface Film Formation

The molecules pack tightly, forming a stable, continuous membrane around the droplet. This membrane slows further evaporation by restricting water diffusion.

Result:

The droplet retains its target size for longer, stays airborne longer, and delivers better contact efficiency.

 

Why Droplet Size Matters in Space Spraying

AquaPy performs optimally when droplets remain within the 15–30 µm range for ULV and fogging work.
Without protection, a water-based droplet in this range would:‑based droplet in this range would:

• Shrink rapidly
• Lose mass
• Drop out of the air prematurely

FFAST™ prevents this drop-off.‑off.

Technical comparisons show that:

• AquaPy droplets maintain size equivalent to or better than oil-based formulations, despite being water based‑based formulations‑based
• FFAST™ formulations evaporate significantly more slowly than standard water diluted emulsions ‑diluted emulsions

This means oil-based performance, without the operational drawbacks of oil.‑based performance, without the operational drawbacks of oil

 

The Performance Benefits for Pest Control Operators

1. Longer Airborne Suspension = Higher Hit Rate

The extended hang‑time means more droplets remain airborne long enough to intercept flying insects—mosquitoes, moths, flies, beetles, and more.

This is why AquaPy is described as delivering:
“superior airborne performance”

2. Cleaner, Water Based Application‑Based Application

FFAST™ enables a water-based EW formulation to behave like an oil-based spray—without the fire risk, odour, or staining. ‑based EW formulation‑based spray—without the fire risk, odour, or staining.

3. Consistent Droplet Behaviour Across Application Methods

FFAST™ is proven across:

• ULV cold fogging
• Thermal fogging
• Aerosol space sprays
• Misting

This consistency is why AquaPy supports ULV, misting, thermal fogging and surface spray from a single product.

4. Effective in Sensitive Environments

Because the formulation is water based, low odour, and non-flammable, it is suitable for:‑based, low odour, and non‑flammable, it is suitable for:

• Food handling sites
• Grain storage
• Public buildings
• Warehouses and factories

5. Maintains Efficacy Even at Higher Temperatures

Thermal fogging often accelerates evaporation, but the FFAST™ film stabilises droplet size even under heat stress, supporting consistent performance.

 

How FFAST™ Compares to Oil Based Formulations‑Based Formulations

Traditional oil-based aerosols are known for their low evaporation rates.
FFAST™ formulations deliver:‑ based aerosols are known for their low evaporation rates.

• Equivalent or superior droplet stability
• Faster knockdown due to pyrethrin–PBO synergy
• Simpler handling (no oil drums, mixing, or storage issues)
• Reduced fire risk
• Reduced environmental contamination

This allows operators to achieve high performance space treatments while moving toward cleaner, safer chemistry.‑performance space treatments while moving toward

 

In Summary

FFAST™ Technology gives AquaPy a unique engineering advantage:

• A protective droplet coating forms in under 1 second
• Evaporation is slowed dramatically
• Droplets stay airborne longer
• Airborne contact with insects increases
• Knockdown and control outcomes improve

AquaPy therefore combines the efficacy of oil-based space sprays with the cleanliness and safety profile of a water-based EW formulation, making it an optimal choice for high compliance environments, professional PCO operations, and demanding space spray applications.‑based space sprays‑based EW formulation‑compliance environments, professional PCO operations, and demanding space spray applications.