Penetrated stains on aniline (porous smooth leather) and suede or nubuck are not easy to remove. Water based cleaners make the leather wet and in most cases are not at all effective as the stains stay visible. There is no easy way to remove such stains.After a lot of tests we found the  COLOURLOCK Aniline Stain Remover to be extremely effective in removing water marks on aniline. WATER MARKS ON GARMENTS (ANILINE, SUEDE, NUBUCK) Clothing leather has the advantage that it can be completely washed. This avoids more marks being caused by local cleaning attempts. Treating the garment according to the instruction (refer to our video 'How to wash leather') first with Aniline Stain Remover is important for good results! WATER MARKS ON ANILINE FURNITURE For sensitive aniline furniture, aniline bags and aniline shoes, the treatment with COLOURLOCK Aniline Water Stain Remover is also first choice. Every piece of leather is different and can react differently to the same treatment. We therefore cannot guarantee the removal of water marks. However, we have achieved excellent results with this method.Application: Always test in a hidden area. Wear gloves! Apply Stain Remover with a soft cloth evenly from seam to seam (wet well). Don’t rub too hard! Otherwise you might damage the softened surface. To speed up drying, use a hair dryer (cold air!). Repeat the process until no further improvement can be achieved.After drying, new leathers (visually like new and soft) should be protected intensively with COLOURLOCK Aniline Cream to avoid new stains. Older leather (visible patina) should be protected with COLOURLOCK Elephant Leather Preserver.   Strong visible marks on vegetable tanned leather after treatment, much better Ostrich leather watch band with marks of welding The marks are completely removed. MARKS ON FURNITURE OF SUEDE OR NUBUCK Penetrated stains on suede and nubuck are not easy to remove. Rarely can the stains be completely removed. However, significant improvements can be achieved.Application: Always test in a hidden area. Wear gloves! Apply COLOURLOCK Aniline Water Stain Remover with a soft cloth evenly from seam to seam (wet well). Don’t rub too hard! Otherwise you might damage the softened surface. To speed up drying, a hair dryer (cold air!) can be used. Repeat the process until no further improvement can be achieved. After drying, sand the surface with COLOURLOCK Leather Sanding Pad and care with COLOURLOCK Aniline Protector and COLOURLOCK Waterproofing. APPLICATION VIDEO