Hot Topping Compounds

Exochem hot topping compounds are formulated to ignite in seconds and to retain the heat in the riser. These compounds flow easily and make them easy to use. These toppings should be applied as soon as the riser is filled with metal. Exochem has many topping compounds that are either exothermic or insulating to fit your specific operation. We also have metal producing topping compounds that will produce a typical mild steel metals analysis of .13% carbon .52% silicon and these metal producing compounds can be used in the event that a casting is poured short. These products are sold in drum quantities by the pound. Please contact your local Exochem distributor to determine what will work best for your application.

NAME TIME FOR IGNITION RATE OF BURN SMOKE ODOR CRUST/  EXPANDING DENSITY/ YIELD EXOTHERMIC/
INSULATING/
METAL PRODUCING
FERROUS/NON-FERROUS
EXOTOP 500 4-5 SEC 1 M 25 SEC MED LOW CRUST-HARD 66.49 DENSITY EXOTHERMIC FERROUS
EXOTOP 100B 6-7 SEC 1 M 29 SEC MED LOW CRUST-HARD 76.75 DENSITY EXOTHERMIC FERROUS
EXPANDEX 500 3-4 SEC 2 MIN MED LOW EXPANDING-SOFT 50.99 DENSITY EXOTHERMIC FERROUS
EXPANDEX 544 6-7 SEC 1 M 15 SEC LOW LOW EXPANDING-MED 58.14 DENSITY EXOTHERMIC FERROUS
EXPANDEX 544S 6-7 SEC 1 M 15 SEC LOW LOW EXPANDING-MED 50.17 DENSITY EXOTHERMIC FERROUS
EXOTOP 100 6-7 SEC 1 M 34 SEC MED NONE CRUST-HARD 67.15 DENSITY EXOTHERMIC FERROUS
EXOTOP 300S 2-3 SEC 55 SEC LOW LOW CRUST-HARD 50.83 DENSITY EXOTHERMIC FERROUS
EXOTOP GLS 3-4 SEC 40 SEC MED LOW EXPANDING-SOFT 60 DENSITY EXOTHERMIC FERROUS
EXOTOP GLS-MP 1-2 SEC 40 SEC LOW LOW CRUST-HARD 62 DENSITY EXOTHERMIC FERROUS
EXOTHERM 100 0-2 SEC 2 MIN+ LOW LOW CRUST-HARD 46-52% YIELD METAL PRODUCING FERROUS
EXOTHERM 190 3-4 SEC 2 MIN+ LOW LOW CRUST-HARD 46-50% YIELD METAL PRODUCING FERROUS
EXOTOP NF 0-2 SEC 25 SEC LOW LOW CRUST-HARD 85.74 DENSITY INSULATING NON-FERROUS
INSULTOP 100 0-2 SEC 45 SEC NONE NONE NO CHANGE-SOFT 36.28 DENSITY INSULATING FERROUS
INSULTOP 105B 0-2 SEC 35 SEC NONE NONE NO CHANGE-SOFT 33 DENSITY INSULATING FERROUS