RESIFA™ SOLESPHERE™ Particles for 3D Printing/Additive Manufacturing

• Higher tensile strength
• Increase stiffness/flexural strength
• Improved dimensional stability
• Easily dispersible in polymer matrix
• Thermal resistant/improved HDT
• Spacers (prevents blocking of soft polymer in powder fusion processes)

Silica loadings in 3D resin formulations can range from 3-50% by weight. Highly filled resin formulations present two major challenges: viscosity control and sedimentation. The physical properties of SOLESPHERE help mitigate these two major concerns.

Viscosity Control

Higher filler loadings typically mean higher viscosities, which decreases workability and processing speeds. However, the size and shape of SOLESPHERE microspherical silica reduce the viscosity. They are very spherical, have a really smooth surface and their particle size is larger than other silica offerings, providing lower surfaceareas. SOLESPHERE silica also form a matrix with typical 3D printing resins and other additives, keeping the constituents in suspension. This provides good viscosity stability over time.

Sedimentation (anti-settling)

Phase separation is when heavier additives settle downward during storage or idle time and lighter components migrate to the top. SOLESPHERE’s surface chemistry is very functional and provides a network within the polymer matrix. This matrix helps prevent phase separation during storage.