JO SONJAS TANNIN BLOCK SEALER 250ML
Jo Sonja's Tannin Sealer is recommended to prepare surfaces for painting which are likely to 'stain through' paint layers. These may include knotted wood, old lacquered or stripped furniture and masonite.

Tannin Sealer may also be used as a Gold Leaf Size and may be used with both real and imitation leaf.