Refractory Coating withstands temperatures to 2,300°F.

Press Release Summary:

Pyro-Paint(TM) 634-AS alumina-silica-filled, fiber-reinforced, ceramic coating bonds, coats, and seals graphite and refractory materials used in molten metal fluid handling components. It also coats and insulates graphite impellers, preventing oxidation and corrosion of graphite at melt line. With 400-700 cps viscosity range, it is resistant to wetting by non-ferrous molten metals, environmentally friendly, water-based, and contains no VOCs.

Original Press Release:

New Pyro-Paint 634-AS High Temp Refractory Coating Now Available

Valley Cottage, NY - October 10, 2003


Pyro-Paint(TM) 634-AS, a new high temperature, alumina-silica filled refractory coating developed by Aremco Products, Inc., is now used to coat and insulate graphite impellers and other graphite structures from oxidation and corrosion in aluminum and magnesium foundry applications to 2300 °F (1260 °C).


Pyro-Paint(TM) 634-AS is an alumina-silica based, fiber-reinforced, ceramic coating system used to bond, coat and seal graphite and refractory materials used in molten metal fluid handling components and structures in foundry applications to 2300 °F (1260 °C). A new application for Pyro-Paint(TM) 634-AS is the insulation of graphite impellers used in the handling of molten aluminum; the 634-AS prevents wear and oxidation of the graphite at the melt line.

Pyro-Paint(TM) 634-AS is rated for temperatures up to 2300 °F and exhibits exceptional adhesion to graphite and ceramic cloth and fiberboard. Pyro-Paint(TM) is resistant to wetting by non-ferrous molten metals, increasing the durability, erosion resistance and reliability of the underlying structure.

Pyro-Paint(TM) 634-AS is formulated with a solids content of 61.2% by weight and 63.3% by volume to a viscosity range is 400-700 cps. It is typically applied by brush, roller or conventional spray equipment. Dry films from 2-3 mils up to 3/8" can be produced without cracking.

Pyro-Paint(TM) 634-AS is a simple to use, environmentally friendly, water-based formulation containing no volatile organic compounds. It dries at room temperature in several hours and cures fully within 2 hours at 200 °F.

Pyro-Paint(TM) 634-AS is part of a line of refractory coatings based on ceramic fillers including boron nitride, carbon, graphite, yttrium oxide, and zirconium oxide. For complete details about Pyro-Paint(TM), please contact Aremco's Technical Sales Department.

Contact This Company

All Topics