ORIGINAL: CGRetired
Just a question here, not a negative comment. Why did you scratch the surface? Was that part of the process? The alcohol cleaned it, right? Was that a necessary part of the process or would ordinary soap and water do the trick?
CGr.
Just use soap and water. I heat the water to 150 degrees, and some canopies take longer than others. I keep a sealed bucket full of the dye, and use a heating element and a turkey deep fry themometer to monitor temps. 2/3 bottle of black RIT and 1/3 bottle of denim blue gives this smoky look (in about 4 gallons of water)