<h2>Why Look for a SIPERNAT® Alternative?</h2>
<p>Evonik's SIPERNAT line has long been a go-to choice for hydrophobic precipitated silica across coatings, feed additives, and industrial applications. Products like <strong>SIPERNAT D10</strong> and <strong>SIPERNAT D17</strong> are widely specified by formulators worldwide. But for many businesses, the combination of premium pricing, long lead times, and supply chain complexity has prompted a serious re-evaluation.</p>
<h3>Key SIPERNAT D-Series Models</h3>
<table border="1" cellpadding="5">
<tr><th>Product</th><th>Type</th><th>D50 (m)</th><th>Primary Function</th><th>Typical Applications</th></tr>
<tr><td>SIPERNAT D10</td><td>Hydrophobized precipitated</td><td>~812</td><td>Anti-caking, flow aid</td><td>Feed, technical powders</td></tr>
<tr><td>SIPERNAT D13</td><td>Hydrophobized milled precipitated</td><td>8.512.5</td><td>Anti-caking, carrier</td><td>Adhesives, defoamers</td></tr>
<tr><td>SIPERNAT D17</td><td>Hydrophobized milled precipitated</td><td>812</td><td>Free-flow, anti-caking</td><td>Feed, cosmetics, powders</td></tr>
</table>
<h3>CensilGuard vs SIPERNAT D17: Technical Comparison</h3>
<table border="1" cellpadding="5">
<tr><th>Parameter</th><th>SIPERNAT D17</th><th>CensilGuard CG-160H</th><th>CensilGuard CG-260H</th></tr>
<tr><td>Type</td><td>Hydrophobized milled precipitated</td><td>Hydrophobic precipitated</td><td>Hydrophobic precipitated</td></tr>
<tr><td>SiO content</td><td>94%</td><td>95%</td><td>95%</td></tr>
<tr><td>Hydrophobicity</td><td>High</td><td>>98%</td><td>>98%</td></tr>
<tr><td>Surface treatment</td><td>Organosilane</td><td>PDMS / HMDS / alkylsilane</td><td>PDMS / HMDS / alkylsilane</td></tr>
<tr><td>Certifications</td><td>Kosher, Halal</td><td>FAMI-QS, ISO 22000</td><td>FAMI-QS, ISO 22000</td></tr>
<tr><td>Cost</td><td>Premium</td><td><strong>3040% lower</strong></td><td><strong>3040% lower</strong></td></tr>
</table>
<h3>Precipitated vs. Fumed Silica: The Critical Distinction</h3>
<table border="1" cellpadding="5">
<tr><th>Parameter</th><th>Precipitated Silica (SIPERNAT-type)</th><th>Fumed Silica (AEROSIL/HDK-type)</th></tr>
<tr><td>Manufacturing</td><td>Wet chemical precipitation</td><td>Flame hydrolysis at ~1,800C</td></tr>
<tr><td>Primary particle size</td><td>1100 m</td><td>550 nm (nanoscale)</td></tr>
<tr><td>Porosity</td><td>Porous (absorbs liquids)</td><td>Non-porous</td></tr>
<tr><td>Cost</td><td>Lower</td><td>Significantly higher</td></tr>
</table>
<p><strong>Key takeaway:</strong> If your application specifies SIPERNAT D10 or D17, you need a <strong>precipitated</strong> Hydrophobic silica not a fumed one.</p>
<h3>Why Formulators Switch to CensilGuard</h3>
<ol>
<li><strong>Verified hydrophobicity >98%</strong> Every batch tested for water repellency</li>
<li><strong>Multiple surface treatment chemistries</strong> PDMS, HMDS, or alkylsilane options</li>
<li><strong>FAMI-QS certification</strong> Certificate No. CNBJ380053-CN (Bureau Veritas)</li>
<li><strong>3040% cost reduction</strong> Factory-direct pricing, no brand premium</li>
<li><strong>Supply chain resilience</strong> Reliable lead times</li>
</ol>
<h3>Application Comparison</h3>
<p><strong>Feed Additives:</strong> CG-160H or CG-200H as direct SIPERNAT D17 substitute. Addition rate: 0.52.0%.</p>
<p><strong>Coatings (Matting & Anti-Settling):</strong> CG-260H or CG-350H (CensilMat series). BET 260380 m/g. Addition rate: 1.05.0%.</p>
<p><strong>Adhesives & Sealants:</strong> CG-160H as hydrophobic carrier. Silane-modified surface for polymer compatibility.</p>
<p><strong>Defoamers:</strong> CG-160H or CG-200H with high hydrophobicity (>98%).</p>
<h3>Ready to Reduce Costs Without Compromising Performance?</h3>
<p>CensilGuard delivers the same proven anti-caking, flow enhancement, and moisture protection as SIPERNAT at a significantly lower cost. <a href="https://www.sensilchem.com/product/20210901160930.html">Request a free sample and TDS today</a>.</p>