I would use a very gentle cleaner. Anything harsh will and can damage the threading. Have you tried some lexol leather cleaner and used a ( soft bristle) brush to scrub.
How do you clean white stitches on a seat?
Toothbrush and some dawn soap (diluted) then wipe with a clean micro fiber. I’d make sure the seats are clean and wiped down as well before you clean the stitching. I wouldn’t use cleaners because they might weaken the thread over time and cause it to rip and break down. Hard to beat some good dish soap.
How do you clean white stitch on leather couch?
Mix the Oxiclean, Dawn and water together. Using a clean rag, soak it in the cleaning mixture and wipe the leather gently. A toothbrush worked great in tight areas and on the stitching in heavier spotted areas.
How do you clean dirty sewing thread?
Using Detergents to Clean Threads. Place a clean bowl in the sink and pour in a few tablespoons of liquid washing detergent. Clear Ivory liquid soap is a good starting place, because it’s a fairly mild soap.
What causes white stains on car seats?
If somebody is sitting in the car on a hot day, with skin-to-seat contact, the combination of moisture from sweat and salt in the sweat can settle on the car seat. The salt is absorbed into the fibres of the upholstery, resulting in white circular stains.
How do you get stains out of car seats?
Use a vinegar mixture. Mix a cup of vinegar, a few drops of dish soap and about a gallon of hot water in a bucket. Then dab the mixture into the stain and use a brush to scrub it out of the seat, use clean water to rinse the seat off. Use laundry detergent.