LUDOX^® Colloidal Silica
for Paper Retention and Drainage

LUDOX^® colloidal silica can be used as one component of microparticle retention systems in the “wet end” of paper manufacturing. 

Typically, a high surface area colloidal silica is used with a cationic starch, poly-acrylamide, or other cationic polymer to flocculate cellulosic fibers for use in the papermaking process.

An optimized process will result in

• Higher retention of fiber, and
• Improved water drainage on the web