Dynasylan® SILBOND® H-5 is a clear, low-viscosity pre-hydrolyzed ethyl polysilicate binder that has been designed for the precision investment casting industry. It contains a higher percentage (approximately 19.5%) silica content (as SiO₂) and a lower acidity level than Dynasylan® SILBOND® H-4. It is well suited for use in block-casting applications.
Typical Applications
It is well suited for use in block-casting applications.
Benefits at a glance
Dynasylan® SILBOND® H-5 can be used, as delivered, to make ceramic molds for the Precision Investment Casting industry.
The degree of hydrolysis and acidity have been optimized for the required reactivity and sufficient storage stability.
The hydrolysis and condensation has been started during the production of the binder. Through a shift in the pH this process is accelerated. This shift is achieved by addition of fillers, pigments, additive, or through the evaporation of solvent or exposure to atmospheric moisture. The resulting silicic acid gel cures rapidly at ambient temperatures in air. The process of curing can be accelerated through the addition of alkali catalysts.
The degree of hydrolysis and acidity have been optimized for the required reactivity and sufficient storage stability.
The hydrolysis and condensation has been started during the production of the binder. Through a shift in the pH this process is accelerated. This shift is achieved by addition of fillers, pigments, additive, or through the evaporation of solvent or exposure to atmospheric moisture. The resulting silicic acid gel cures rapidly at ambient temperatures in air. The process of curing can be accelerated through the addition of alkali catalysts.
Product Details & Documents
Technical Data Sheets
Further Information
Packaging:
Dynasylan® SILBOND® H-5 could be available in pails, drums, totes and tanker quantities.
Please ask for further details.
Please ask for further details.
Shelf life:
In unopened container Dynasylan® SILBOND® H-5 has a shelf life of min. 6 months from date of manufacture.