Rheology Modifier

The attapulgite mineral in MICRONGEL 90CR forms a three-dimensional gel network in the ceramic slip through electrostatic interactions. This network suspends heavier glaze ingredients (silica, feldspar, pigments) uniformly throughout the slip, preventing sedimentation during storage and ensuring consistent glaze application.

No. MICRONGEL 90CR is a high-purity, refined white grade specifically selected to have minimal iron, titanium, and colouring impurities. When used at the recommended dosage, it does not adversely affect the firing whiteness or chemical purity of ceramic glaze, engobe, or body formulations.

MICRONGEL 90CR is typically used at 0.1–0.5% by weight of the dry ceramic slip or glaze formulation. The exact dosage depends on the desired rheological profile, the specific gravity of the slip, and the type of ceramic application (casting, dipping, spraying).

The gel network formed by MICRONGEL 90CR in the ceramic slip provides improved colloidal bonding between ceramic particles during casting. This results in higher green strength (post-demoulding) and dry strength (post-drying), reducing the tendency for cracking and improving handling of unfired ceramic bodies.

Yes. MICRONGEL 90CR's thixotropic properties make it particularly well-suited for spray-glazing, where the glaze must flow freely through the spray nozzle under pressure but must resist running or sagging immediately after deposition on the tile surface.