FILLER F3 is an excellent filling agent based on natural and vegetal raw materials.
Its use imparts benefits to bovine hides, goat and sheep skins and also on suede, obtaining final articles with less empty zones and therefore with higher area yield.
The use of FILLER F3 during the retanning step brings the following advantages:
• good fullness of bellies and flanks, with more uniform leather thickness on all area
• good leather roundness
• excellent buffing properties for suede and for hides for corrected grain articles.
FILLER F3 is applied after the neutralisation made with other synthetic retanning agents or before fatliquoring, or it can be added to the fatliquoring bath.
A quantity between 2 and 6% on shaved weight is enough for all type of uses.
