Question 1

What is precipitated silica used for in feed additives?

Accepted Answer

Precipitated silica is used as a vitamin carrier, anti-caking agent, and flow aid in feed additives. Censil brand precipitated silica is FAMI-QS certified and provides excellent carrier performance with cost-effective alternatives to Evonik SIPERNAT and Grace FLO-GARD.

Question 2

Is Censil precipitated silica FAMI-QS certified?

Accepted Answer

Yes, Censil precipitated silica is FAMI-QS certified. The full certification scope covers 13 silica grades, ensuring compliance with European feed additive safety standards. Audit reports are available upon request.

Question 3

What is the difference between hydrophilic and hydrophobic silica?

Accepted Answer

Hydrophilic silica has a natural affinity for water and is used as carrier and anti-caking agent. Hydrophobic silica is surface-treated with PDMS, HMDS, or alkylsilane to repel water, making it suitable for coatings, adhesives, sealants, and rubber applications where moisture resistance is required.

Question 4

Can I get free samples of Censil silica products?

Accepted Answer

Yes, free samples are available for all Censil precipitated silica grades including feed grade, food grade, rubber grade, and hydrophobic silica. Contact sales@sensilcoating.com to request samples.

Question 5

What are the alternatives to Evonik SIPERNAT and Grace FLO-GARD?

Accepted Answer

Censil precipitated silica offers equivalent performance to Evonik SIPERNAT and Grace FLO-GARD at 30-40% lower cost. Censil 2200 and Censil 665 are direct alternatives for feed additive applications, with FAMI-QS certification ensuring regulatory compliance.

Hydrophobic Silica

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