Flow Aid Silica

Primary uses

• Keeping powders discharging reliably from hoppers and silos
• Preventing caking during storage and transport
• Improving fill-weight accuracy on packing lines
• Holding a blend together through transfer without segregating

Applications

• Food and beverage powder plants across the Greater Toronto Area and Quebec
• Feed mills and premix blenders
• Fertilizer and chemical blending and bagging operations
• Tabletting and capsule filling where the grade permits

Advantages

• Solves a production stoppage problem at very low addition levels
• Available in hydrophilic and hydrophobic versions for wet and dry failure modes
• Low-dust granulated versions exist where handling exposure is a concern

Limitations to consider

• Does not absorb meaningful quantities of water; severe humidity problems need a different approach
• Over-dosing can change the taste, texture or downstream behaviour of the host powder
• Effectiveness depends on the additive being finer than the powder it has to coat
• Addition level and performance are established on your own material and equipment; supplier literature values are starting points for a trial, not a specification.
• Mineral powders create airborne dust during transfer and bagging. Respirable crystalline silica content varies by mineral and by grade, so it is treated as an SDS and workplace-controls question rather than a published figure, and the SDS for the exact grade offered is the governing document.

How to choose the right grade

• State the production route you need — fumed or precipitated — before comparing prices
• Say whether the grade must be hydrophilic or hydrophobic, because surface treatment changes the whole result
• Describe the system it goes into: a liquid resin, a solvent system, a water-based system or a dry powder
• Confirm what dispersion equipment you have, since these materials only perform once properly dispersed
• Confirm the regulatory status the finished product requires
• Fumed (pyrogenic) and precipitated silicas are different products made by different routes. They are not interchangeable, and an enquiry that does not state the route usually has to be re-quoted.
• Exact specification is confirmed against supplier documentation at quotation.

Typical grades

• Hydrophilic grade
• Hydrophobic (treated) grade
• Food-additive grade where the application requires it
• Granulated low-dust grade
• Reference grade names circulate as shorthand in enquiries and are treated here as search language only. An equivalent is established by comparing declared datasheet values and running a trial; no grade is presented as a drop-in replacement for another.