Robert from Rockville Md writes
What is the best way to remove dried on blue on a cotton t-shirt?
Per the product label, when using Monterey Mark-It Blue - this can be removed from skin or equipment with several washings of soap and water. Avoid letting MARK-IT BLUE concentrate come into contact with fabrics. You may contact the manufacturer directly at 559-499-2100 for advise on how to remove their product from clothing.
Answer last updated on: 10/19/2021