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PPG Precipitated Silica Products for the Food Industry

For more than 30 years, PPG has engineered FLO-GARD™ silica products to meet the flow conditioning challenges associated with virtually every type of powdered, granulated, emulsified or grated food product. Designed to prevent caking and optimize the flow characteristics of food products, Flo-Gard flow conditioning silica products enable improved product performance and manufacturing productivity by:

  • Imparting uniformity to irregularly shaped particles
  • Absorbing ambient moisture and oils from food particles
  • Forming micro-layers of dust on sticky particle surfaces to prevent agglomeration
  • Serving as a dry lubricant
  • Dissipating electrostatic charge between particles

For food manufacturers, the resulting benefits include:

  • Increased processing efficiency through smoother ingredient blending and less caking in screens, hoppers, conveyors, spray dryers and machinery
  • Enhanced product consistency and quality control through accurate, automated dosing of fruit and vegetable extracts, spices, nutrients, preservatives and other constituent materials
  • Easier packaging
  • Greater storage and transportation flexibility, including the ability to ship products in a variety of temperature, humidity and environmental conditions


Flo-Gard Silica Product Properties for Food Free-Flow and Carrier Applications

 

Particle
Size*
(μm)

DBP
Oil
Absorption
(mL/100g)

pH

Residual Salt Type

Bulk Density

General Use Recommend-ations

lb/ft3

g/L

Flo-Gard LPC

135

245

6.9

Na2SO4

12

195

Medium to large particle size applications

Flo-Gard SP

45

265

6.9

Na2SO4

11

175

Medium particle size applications with higher oil and fat absorptivity

 

Flo-Gard AB/AB-D

40

305

6.9

Na2SO4

8

130

Medium particle size applications with higher oil and fat absorptivity, including with aqueous components

Flo-Gard FF/FF-D

20

210

6.9

Na2SO4

8

130

Fine particle size applications with higher oil absorptivity

Flo-Gard 915

10

220

6.9

Low Na2SO4

5

80

Fine to ultra-fine particle size applications with increased oil absorptivity

Flo-Gard T-700

4

215

6.9

Na2SO4

2.5

40

Ultra-fine particle size applications

Flo-Gard T-800

2.5

220

6.9

Na2SO4

2

30

Demanding ultra-fine particle size applications

* Median particle size by laser diffraction.

 

View table listing specific food product applications and the recommended Flo-Gard silica product.

 

Flo-Gard LPC

Flo-Gard
SP

Flo-Gard AB/AB-D

Flo-Gard FF/FF-D

Flo-Gard 915

Flo-Gard T-700

Flo-Gard T-800

Cocoa Powder

 

 

 

 

 

 

 

Dried Egg Yolks*

 

 

 

 

 

Dried Eggs*

 

 

 

 

 

Garlic and Onion Salt

 

 

 

 

Instant Coffee and Tea

 

 

 

Ground Herbs and Spices

 

Lemon, Lime and Orange Powders

 

 

 

 

Malt-emulsifier Powder

 

 

 

 

Non-Dairy Creamer

 

 

 

 

Pancake and Cake Mixes

 

 

 

 

 

Paprika

 

 

 

Powdered Drink Mixes

 

 

 

 

Powdered Milk

 

 

 

 

 

Powdered Sugar

 

 

 

Granulated Salt and Sugar

 

 

 

Grated Cheese**

 

 

 

 

 

Tableting Aid

 

 

 

Salt and Sugar Substitutes

 

 

 

Except as noted, all applications conform to 21 CFR 172.480, which allows precipitated silica in quantities not to exceed 2% by weight
of the finished food product.
* Per 21 CFR 160.185 and 21 CFR 160.105, silica is limited to no more that 1% of the finished food weight
** Per 21 CFR 133.146, silica is limited to no more than 2% of the finished food weight


Flo-Gard is a trademark of PPG Industries Ohio, Inc.