Saint-Gobain’s #170 is a white fused magnesium aluminate powder that is blocky in shape. This powder produces high thermal shock resistant coatings that are suitable for the re-surfacing of parts. These coatings resist wetting by liquid aluminum, making #170 powders ideal for resurfacing molds, ladles, ladle plugs, ladle lips & other furnace parts. The product is also used for coating oxygen sensors to protect against gas erosion with controlled permeability.
Saint-Gobain’s #171 is a spherical white magnesium aluminate (Spinel) powder used primarily for resurfacing parts that require high thermal shock resistance. These coatings resist wetting by liquid aluminum, making it ideal for resurfacing molds, ladles, ladle plugs, ladle lips & other furnace parts. The product is also used for coating oxygen sensors to protect against gas erosion & to control permeability.