Specification :

Cover Flukes NF 11 is a white Covering flukes for Aluminum Alloy which providing good reaction to protection Aluminum melting from trapped oxidation and hydrogen .
The amount of flukes recommended is approximately 1.2-2.5 kg per square meter of metal surface area in areveberatory furnace. In crucible furnace, it is used at 0.5-1.1 % based on weight of metal.