Standalone Excipient · Glidant

Silicon
Dioxide

A glidant that keeps cohesive powders moving through the hopper and feed boot. Add at 0.25–1% when a formulation bridges or rat-holes, for even fill and consistent tablet weight.

0.25–1%
Typical Use Rate
Glidant
Formulation Role
White powder
Appearance
3 sizes
1kg/2kg/5kg
$49.95 USD / bag

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Silicon Dioxide FIG. 01 Silicon Dioxide powder, Press & Powder branded 1kg bag
Why This Excipient

Built for
your own blend.

01

Keeps Powder Flowing

Improves how evenly a blend fills the die cavity, batch after batch, without bridging or clumping in the hopper.

02

A Little Goes a Long Way

Used at just 0.25–1% of the blend — more doesn't improve flow further and just displaces active ingredient.

03

Fixes Bridging and Rat-Holing

The standard fix when a cohesive powder hangs up in the hopper instead of feeding into the die consistently.

Full Specifications

Every
number.

Confirm performance for your specific formulation with your own testing before a production run.

SpecValue
AppearanceWhite, extremely fine powder
RoleGlidant
Physical stateSolid
Directly compressibleNot on its own — used as a minor additive
Typical use rate0.25–1% of the total blend
Approx. particle sizeSub-micron (colloidal)
StorageRoom temperature, sealed container
Bag sizes1 kg, 2 kg, 5 kg
Bulk sizes25 kg, 500 kg pallet lots
Questions

Frequently
asked.

What does silicon dioxide do in a tablet formulation?

It acts as a glidant, improving how freely the powder blend flows into the die — the standard fix for weight variation caused by inconsistent fill.

How much silicon dioxide should I use?

0.25–1% of the total blend is typical. Too much doesn't help flow further and just displaces active ingredient.

What happens if my formulation doesn't have enough glidant?

Powder can bridge or rat-hole in the hopper, causing weight variation from tablet to tablet. See how powder flowability affects tablet compression for the full diagnosis.

Reviews

What buyers
say.

4.7 out of 5, based on 3 reviews.

★★★★★
Yuki N. April 2026

Fixed our powder flow issues at just under 1%. Noticeable difference in weight consistency.

★★★★★
Gabriel S. February 2026

Small addition, big improvement in hopper flow for our denser blend.

★★★★☆
Ruth A. December 2025

Does the job as a glidant. Took some trial and error to find our ideal ratio.

Also Consider

Round out
the formula.

Questions about silicon dioxide?

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