𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 : 𝐍𝐨𝐭 𝐀𝐥𝐥 𝐒𝐢𝐥𝐢𝐜𝐚 𝐈𝐬 𝐭𝐡𝐞 𝐒𝐚𝐦𝐞: 𝐓𝐡𝐫𝐞𝐞 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐄𝐯𝐞𝐫𝐲 𝐂𝐨𝐚𝐭𝐢𝐧𝐠𝐬 𝐅𝐨𝐫𝐦𝐮𝐥𝐚𝐭𝐨𝐫 𝐒𝐡𝐨𝐮𝐥𝐝 𝐊𝐧𝐨𝐰
𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 𝐍𝐨𝐭 𝐀𝐥𝐥 𝐒𝐢𝐥𝐢𝐜𝐚 𝐈𝐬 𝐭𝐡𝐞 𝐒𝐚𝐦𝐞: 𝐓𝐡𝐫𝐞𝐞 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐄𝐯𝐞𝐫𝐲 𝐂𝐨𝐚𝐭𝐢𝐧𝐠𝐬 𝐅𝐨𝐫𝐦𝐮𝐥𝐚𝐭𝐨𝐫 𝐒𝐡𝐨𝐮𝐥𝐝 𝐊𝐧𝐨𝐰 When formulators hear the word “silica,” it’s easy to assume that all silica products perform the same function. The reality is very different. Although fumed, precipitated, and colloidal silica are all based on silicon dioxide (SiO₂), their manufacturing processes create different particle structures—and those structures determine how they behave in a coating. Manufacturing → Structure → Function Let’s look at the three most important silica technologies in coatings. 🔥 1. FUMED SILICA Manufactured by flame hydrolysis A silicon-containing precursor is reacted at very high temperature, producing extremely fine amorphous silica particles that form branched, three-dimensional aggregates. This structure creates a network within the coating that can break down under shear and rebuild when ...
