H is a group of products used to fill the space between the panes to obtain high resistance to fire. The products are available in various configurations designed specifically for the customer's demand.

H products have unique properties as a source of ingredients for inter-layer fillings for fire-resistant glass:

• Special morphology allows for high solids content and high solids content in a process that can be easily controlled.
• High purity ensures excellent optical characteristics of the final product
• The dry state allows maximum flexibility in the formulation of dispersions

The special morphology of H particles allows for the preparation of a high concentration of fill, which also have a low viscosity and a very long processing time, often needed when filling interlayers in the production of refractory glass.