both are becoming ridicously expensive,an economy size( gal can) is availible from harbor frieght with considerable savings per oz,just buy a spray bottle to use it,really helps in the electronic dept( i always flood the battery compartments of older electronic things which i mistakingly left alkaline batteries in,now i always use zinc chloride batteries( usually stop working before they disintergrate-better yet use rechargable nimh batteries,if voltage is not an issue)