Drossing Fluxes
COVER 131
Cover 131 is a low fluoride general-purpose drossing flux with a recommended working temperature range of 720°-780°C.
COVER 133
Low temperature drossing flux suitable for use at temperatures of 660°C and above for application with aluminium and its alloys apart from Al-Mg-alloys with more then 2% Mg. Producing very dry powdery dross. The product can be used in large melting units such as reverberatory or rotary furnaces and small units such as crucibles.
COVER 302
Commercially sodium free and calcium free cleansing and drossing flux for use with aluminium - magnesium alloys and other alloys where sodium contamination must be avoided, e.g. phosphorus refined alloys. Traditional flux but with the benefit of a non-hazardous classification for supply! COVER 302 produces dry dross that absorbs aluminium and magnesium oxides and enables a clean separation of metal from dross.
HMC 37
HMC 37 is a general purpose cleaning and degassing injection flux, generating dry exothermic dross. Designed for use at relatively low temperatures up to 720°C.

