Coatings for sand molds and cores
The high casting temperatures associated with steel foundries require careful selection of refractory materials to ensure full protection against metal penetration and burn-on defects.

Coatings for steel foundries utilize high purity zirconium silicate or metal oxide refractories to offer protection under the most extreme casting conditions. Further refractory protection and resistance to burn-in and penetration defects is achieved through the use of unique primer coatings that enhance the performance of zirconium silicate and metal oxide refractory top coatings.

A full range of specialist products is also available to cover specific applications, such as the high demands of manganese steel, highly alloyed stainless steels or metal penetration due to hot spots or high metallostatic pressures. These products are formulated to ensure rheology is optimized for specific application methods.

Casting
Selection
Characteristics Application
Methods
Water Based Alcohol Based
Heavy section
steel castings
General application
zircon coating
Brush, dip, spray HOLCOTE 578 ISOMOL 578
Flow Coating HOLCOTE 300-85 FLO ISOMOL FLO
Penetration resistant
primer coating
Brush HOLCOTE Z Primer ISOMOL Z Primer
Medium section
steel castings
Zircon alternatives Brush, dip, spray HOLCOTE 950 ISOMOL 100Z
HOLCOTE 50Z N/A
Flow coating HOLCOTE 900 FLO ISOMOL 900 FLO
Manganese
Steels
Manganese
steel grades
Brush, dip, spray N/A ISOMOL 720
MOLDCOTE 34