Light non-staining adhesive with a natural rubber base.
Ultragum 121 P is suitable for upper assembling when the positioning of lining or different materials are followed by stitching.
The use of this adhesive let open and join again the different parts of the assembling before finding the right position.
Dried films of Ultragum 121 P are very elastic, thanks to this property, they do not change the flexibility of leather uppers and soft linings.
Ultragum Crepe 121 P is almost colourless, so, usually, it does not stain the upper materials.