Bentonite may help clear your wine. Can be used during fermentation or after fermentation. Holds a negative charge.
Different kinds of finings products have different purposes. Most finings products either have a negative or a positive charge; and so attract suspended solids in your wine of the opposite charge.
You may need to use both a negative and a positive charged fining product to completely clear your wine. If you would like more information regarding finings we recommend this article from the Winemakers Magazine
Drifine Isinglass Finings (positive charge) removes suspended solids from a cloudy wine. Isinglass is a transparent and pure form of gelatin fining agent obtained from the swim bladder of fish.
Hot Mix Sparkolloid® NF is specially formulated to clarify wine without impacting aroma, body or flavor. It can be also used after bentonite or carbon fining to help compact lees. Hot Mix Sparkolloid NF can be helpful in removing haze left by other fining agents.