Dynasylan® SILBOND® 40

• Similar to Dynasylan® SILBOND® Condensed, Dynasylan® SILBOND® 40 is used to deposit silicic acid formed as a result of complete hydrolysis.
• The resulting silicic acid bonds well to many inorganic substrates, such as glass, ceramic, metal, fillers, pigments, and synthetic fibers.
• The deposition of a thin SiO2 layer improves the chemical and thermal stability and mechanical properties.
• Other applications are:
  • binder, especially as Dynasylan® SILBOND® H- or HT- binders for inorganic zinc-rich coatings or precision investment castings
  • encapsulant for hydroxyl poor fillers to enhance adhesion with functional silanes
  • crosslinker component in cold-curing silicone rubber systems
  • hardening component in dentistry for impression materials and as a binder for embedding material
• Dynasylan® SILBOND® 40 is also used as starting material for sol-gel processes.
• It is usually used in conjunction with alkylsilanes (e.g. Dynasylan® MTES) organofunctional silanes and/or organic precursors (e.g. organic resins) to form siloxane networks.
• This makes it possible to obtain highly scratch-, abrasion-, and chemical-resistant coatings.
• Dynasylan® SILBOND® 40 is immiscible with water, therefore hydrolysis requires a cosolvent as a solubilizer.
• Mineral acids and ammonia are suitable as catalysts.
• Dynasylan® SILBOND® 40 or its hydrolysates are also the binder component for 1- and 2-pack inorganic zinc-rich coatings, for corrosion protection on steel, and for slurries used in precision investment castings.

Dynasylan® SILBOND® 40 product could be available in pails, drums, totes and tanker quantities.