Our leather tinting paste (black) contains resin glue， filling powder and thickener. It can repair leather and ethylene products， fix scratches and dry areas， and refurbish old and faded colors. Its usage method is very simple: First， clean the area around the part to be repaired to keep it clean and free of standing water. Then， use a small trowel to take an appropriate amount of repair paste and apply it evenly to the damaged area. Let it stand for a few minutes until it dries. After that， adjust the desired color with a palette and apply it to the damaged area. Multiple applications will achieve a better coloring effect. Finally， after the color patch is completely dry， check with a towel whether the color is fixed. And it can repair leather scratches.